Network Compatible PM7600B Variable Air Volume …...1 63-4309—2 The PM7600B Program Module allows the W7600 System to control discharge air tempera-ture and static pressure in variable

1 63-4309—2

The PM7600B Program Module allows theW7600 System to control discharge air tempera-ture and static pressure in variable air volume airhandling applications by modulating, energizingand de-energizing fan, heating and cooling stages.

■ For use with Network Compatible W7600A-F 2XXXControl Modules only.

■ Provides programming of control parameters andalarm annunciation through the S7600 KeyboardDisplay Module.

■ Demand limit control function via setpoint bump.

■ Provides P+I+D control of discharge air temperatureand duct static pressure.

■ Controls up to twelve stages of cooling and six stagesof heating.

■ Controls up to four compressors.

■ Provides modulating control of heating, cooling, fanand economizer.

■ Provides reset based on space, outdoor or return airtemperature.

■ Controls liquid line solenoid valves and compressorunloaders.

■ Inputs and outputs are user selectable for customiz-ing the W7600.

■ Automated remote reporting by using a personalcomputer and ZM7603 Remote Monitoring Software.

■ Communicates on Honeywell 2-Wire CNAPNetwork.

■ Digital outputs can be network controlled for light-ing or start/stop control.

■ Uses economizer for free cooling.

■ Controls chilled water and/or condenser water pump.

■ Monitors compressor, heat, water flow, proof ofairflow and dirty filter safety switches.

■ Monitors discharge air, space air, outside air, andcondenser inlet water temperatures.

■ Return air fan control, modulating or floating, fromvelocity or velocity pressure.

■ Innovative velocity pressure control algorithm foroptimum return air flow tracking control.

■ Indoor Air Quality (IAQ) input signal allows out-door air damper minimum position to be reset.

■ Staged, floating or modulating control of preheatcoil provided in outside air duct.

63-4309-2

D.B. • Rev. 4-95 • © Honeywell Inc. 1995

CONTENTS

System Description ........................................ 2Ordering Information .................................... 2Specifications ................................................ 4PM7600B Input and Output Options ............ 5Operation .................................................... 32Installation .................................................. 36Programming .............................................. 38Checkout ...................................................... 48Troubleshooting/Alarms .............................. 48

Network Compatible PM7600B Variable Air Volume Program

Module for W7600

63-4309—2 2

PM7600B PROGRAM MODULE DESCRIPTIONThe PM7600B Program Module is an EPROM used

with the Network Compatible W7600 Control System. Theprogram module must be installed in the W7600 2XXXControl Module only. The PM7600B is factory-installed inspecific W7600 models.

The PM7600B Program Module allows the W7600 toprecisely control discharge air (DA) temperature and staticpressure in a variable air volume (VAV) application. Alongwith basic temperature and static pressure control, thePM7600B may also be programmed to control condenserpumps and economizers. Also, it controls safety featuressuch as compressor lockout on high or low refrigerantpressure, fan failure and dirty filter.

Additional networking features include:• Network time of day control of assigned digital out-

puts for use in lighting control and other applications.• Demand limit control via change of discharge air

temperature setpoint from a network-provided digitalinput.

• Programmable zone specific time of day bypass to theoccupied state using the W7620 VAV box controller.

The S7600A Keyboard Display Module is used to pro-gram and monitor discharge air temperature, static pres-sure, space and outdoor air temperatures, and all alarms andsetpoints. The PM7600B contains the control options, con-trol program and application-specific screens for the S7600A.

The PM7600B Software provides options for W7600/W7601 analog and digital inputs and outputs. These moni-toring and control points are used for operation of a basicVAV system. Input and output points must be configuredusing the ZM7601 or ZM7603 Software package and anMS-DOS compatible PC. For more specifics about avail-

able point options, see the PM7600B Input and OutputOptions section. See Fig. 2 for a typical VAV application.

W7600 CONTROL SYSTEM DESCRIPTIONThe Network Compatible W7600 Control System, see

Fig. 1, provides a complete network of direct digital controlusing a two-wire RS-485 bus. The Q7640 Network Inter-face Unit provides the communication capability on thenetwork, as well as remote communication through anexternal modem. The network allows sharing outdoor airtemperature and other data between controllers, reducingthe wiring and accessory costs of the installation. Addi-tional features of the Q7640 NIU include trend logging,alarm dialout to remote personal computers and remotemonitoring capability.

Control functions are provided through the W7600 Con-trol Module. The PM7600B Program Module is an EPROMthat resides in the W7600 and provides customized soft-ware for variable air volume systems, see Fig. 2. Eachmodel of the PM7600 contains algorithms and controlstrategies designed to control a specific type of equipment.The W7600 controls by monitoring analog and digitalinputs, processing the PM7600 algorithms and controllingthe analog or digital outputs provided in the W7600 ControlModule.

The W7601 Module allows for expansion of inputs andoutputs. The R7600 Relay Module is connected to theW7600 or W7601 to provide digital outputs. Local moni-toring and programming of the W7600 is provided by theS7600 Keyboard Display Module. The Q7601 SetpointModule is designed to allow setpoint control from a stan-dard potentiometer rather than from the S7600.

PM7600BSYSTEM DESCRIPTION • ORDERING INFORMATION

System Description

Ordering InformationWhen purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the TradelineCatalog or price sheets for complete ordering number, or specify—

1. Order number.2. Accessories, if desired.3. Order additional system components and system accessories separately.

If you have additional questions, need further information, or would like to comment on our products or services, please write or phone:1. Your local Home and Building Control Sales Office (please check the white pages of your phone directory).2. Home and Building Control Customer Logistics

Honeywell Inc., 1885 Douglas Drive NorthMinneapolis, Minnesota 55422-4386 (612) 951-1000

In Canada—Honeywell Limited/Honeywell Limitée, 740 Ellesmere Road, Scarborough, Ontario M1P 2V9 International Sales andService Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico,Netherlands, Spain, Taiwan, United Kingdom, U.S.A.

3 63-4309—2

1

23

4

1

23

4

5

67

8

9

1011

12

131415

16

1

23

4

5

67

8

24 VACINPUT

V2V1GND

V2V1

24 VACOUT

5

67

8

20 vdc (*)4321A COM

ANALOGINPUTS

VUR(*)8765A COM

ANALOGINPUTS

87654321D COM

DIGITALINPUTS

EXPANSION OUTPUTTO W7601 OR Q7600

16151413

D COM

DIGITALOUTPUTS

1211109

D COM

DIGITALOUTPUTS

8765

D COM

DIGITALOUTPUTS

4321

D COM

DIGITALOUTPUTS

4321

GNDV2V1

S7600A

24 VACOUT

REQUIRES R7600 TO SWITCH OUTPUTS.

FAST- + MENU

PROGRAM COPY CLEAR

RUN REVIEW BYPASS

PROGRAM MODE

RUN MODE

BUILDINGMANAGEMENT

DATA CHANGE

S7600 KEYBOARD DISPLAY MODULE

HIGH ENTHALPY –

PROOF OF AIRFLOW –

DUCT FREEZSTAT –

SYSTEM SAFETY, OR IAQ –

COMPRESSOR FAIL 2 –

COMPRESSOR FAIL 1 –

COMPRESSOR LOW PRESSURE 2 –

COMPRESSOR LOW PRESSURE 1 –

DIGITAL INPUTS (1–8)

ANALOG INPUTS (1–8)

RETURN STATIC PRESSURE –

CONDENSOR INLET TEMPERATURE –

MIXED AIR TEMPERATURE –

RETURN AIR TEMPERATURE –

SPACE TEMPERATURE –

OUTDOOR AIR TEMPERATURE –

DISCHARGE AIR TEMPERATURE –

DISCHARGE STATIC PRESSURE –

– SPARE

– SPARE

– EXHAUST FAN (VIA NETWORK)

– LIGHTS (VIA NETWORK)

DIGITAL OUTPUTS (1–16)

– SPARE

– SUPPLY –

– SUPPLY +

– OCCUPIED / UNOCCUPIED MODE

– VAV BOX OPEN

– ALARM OUTPUT

– CONDENSER PUMP

– FAN

– HEAT 2

– HEAT 1

– COOL 2

– COOL 1

1

M4138A1

W7600 CONTROL PANEL

NETWORK COMPATIBLE

Fig. 1—Networked W7600 Control System.

PM7600BSYSTEM DESCRIPTION

PERSONAL COMPUTERWITH ZM7601 ORZM7603 SOFTWARE

HONEYWELL APPROVEDINTERNAL OREXTERNALMODEM

M4137

MODEM

HONEYWELL APPROVEDEXTERNALMODEM

MODEMTELEPHONELINES

Q7640NETWORKINTERFACEUNIT

SERIALRS-232INTERFACECONNECTION

CNAPCOMMUNICATIONNETWORK

W7620SINGLE ZONE/WSHP/VAV MODULE

T7600SPACESENSOR

W7600A-FCONTROLMODULE


W7601A,BEXPANSIONMODULE

Q7600GCOMMUNICATIONMODULE

W7600GBUILDING DDCCONTROLMODULE

REPEATERS7620

NETWORK COMPATIBLEAPPLICATION SPECIFIC

ETC.

UP TO 32 TOTAL ADDRESSNODESON THEBRANCH

W7601A,BEXPANSIONMODULE

Q7600GCOMMUNICATIONMODULE


UP TO 32 TOTAL ADDRESSNODESON THEBRANCH

NETWORK DIAGRAM

Fig. 2—Typical VAV application.

63-4309—2 4

MODEL:PM7600B—Network Compatible Variable Air Volume Pro-

gram Module. Used with Network Compatible W7600A-F2XXX Control Modules to provide modulating control ofup to 12 stages of cooling, six stages of heating, econo-mizer and fan.

TEMPERATURE RATINGS:Ambient: -40° to 150°F (-40° to 66°C)Shipping: -20° to 120°F (-29° to 49°C)

HUMIDITY RATING:5-90 percent at 90°F (32°C) noncondensing.

MOUNTING: Plugs into socket on W7600A-F board.

Product Specification Form No.W7600A2007 Control Module 63-4307

W7600B2005 Control Module

W7600C2003 Control ModuleW7600D2001 Control Module

W7600E2008 Control Module

W7600F2006 Control Module(Other W7600A-F 2XXX Control Modulesmay exist and are also compatible.)

S7600A2001 Keyboard Display Module 63-4308(Other S7600A 2XXX Display Modules may existand are also compatible.)

Q7600G100G Communication Module 63-4274Q7600G2002 Communication Module

Q7600H2000 Communication Module (Ext.Temp.)

Q7640B Network Interface Unit 63-4290Q7640C Network Interface Unit 63-4304

W7601A1008 Expansion Module (Series 2 or higher) 63-4063

W7601B1006 Expansion Module (Series 2 or higher)W7601A2006 Expansion Module (Recommended)

W7601B2004 Expansion Module (Recommended)

R7600A1006 Relay Module 63-4059Q7601A1006 Setpoint Module 63-4061

T7660A-D Space Temperature Sensor 63-4219

PM7600BSPECIFICATIONS

SpecificationsPROGRAMMING: Programmed through S7600 Keyboard

Display Module or IBM® PC with ZM7601 or ZM7603software.

COMMUNICATION: Honeywell Two-wire CNAP Net-work. Used with a personal computer and ZM7603 Re-mote Monitoring Software to provide automated remotereporting.

SYSTEM COMPONENTS: The Network CompatiblePM7600B Program Module is designated by the 2XXXsuffix. Control Modules and accessories designed spe-cifically to complement the operating system are listedbelow. Only those accessories listed are compatiblewith the Network Compatible PM7600B ProgramModule.

5 63-4309—2

valve actuator. The current output is a 0 to 20 mA signal butcan be converted to a 0-15 Vdc signal by adding a droppingresistor. The desired analog output range can be definedwithin the 0-20 mA total range; for example, the analogoutput can be defined to operate from 4 to 16 mA or from 7to 15 mA.

Remote Digital Input—The remote digital input point isnot an actual physical point. It may be used as a source ordestination for digital input information from the CNAPNetwork; specifically, the Q7640. The remote digital inputpoint functions like a regular digital input point, but it isonly a memory location in the W7600. There are 32 remotedigital input points for each W7600.

Remote Analog Input—The remote analog input point isnot an actual physical point. It may be used as a source ordestination for analog input information from the CNAPNetwork; specifically, the Q7640. The remote analog inputpoint functions like a regular analog input point, but it isonly a memory location in the W7600. There are 48 remoteanalog input points for each W7600.

VAV NETWORK FUNCTIONSThe VAV control algorithm contains several variables

and functions that may be used in conjunction with othercontrollers on the CNAP Network. Table 1 is a list ofvariables available to the CNAP Network and a brief de-scription of the intended network usage. (Note that theVAV control is a CNAP satellite because network func-tions require a CNAP master controller to collect and passthe data.)

Using network functions requires the Q7640 NetworkInterface Unit for datasharing. Demand limit control re-quires a W7600G Building DDC Controller with a kilowattsensing input and a start/stop program configured to pro-vide the Restore/Shed digital input via the network.

An additional network feature is the ability to write tounused digital outputs on the W7600 using the networkcontrolled digital outputs (control no. 248-255). This canbe used to control lighting, exhaust fans or other itemsbased on a time schedule from another controller on theCNAP Network.

The View feature of the ZM7601/ZM7603 softwareallows the user to view the status of individual Input/Outputpoints and the status of the Air Handling Unit (AHU)controlled by the W7600 Control Module. See the ZM7601/ZM7603 Software User’s Guide for more information onthe View feature.

PM7600BPM7600B INPUT AND OUTPUT OPTIONS

PM7600B Input and Output OptionsINTRODUCTION

The PM7600B software must be programmed or config-ured to define analog and digital inputs and outputs con-nected to the device. With this configuration, the W7600provides discharge air (DA) temperature and static pressurecontrol in VAV applications. The PM7600B software al-lows the user to customize the control system for manydifferent types of VAV applications. Because of this appli-cation versatility, provisions were made to configure theavailable analog and digital inputs and outputs to a givensystem using an IBM® PC AT™ or Honeywell approvedcompatible computer. Refer to the ZM7601/ZM7603 User’sGuide for further details. For specific instructions, see theProgramming W7600 Controllers section of that manual.

Before reviewing the optional input and output configu-ration parameters, it is necessary to understand some termsused with this type of control configuration. The terms anddefinitions listed below are used throughout this specifica-tion.

Control Number—Number assigned within thePM7600B to an analog or digital input or output. Thisnumber is assigned by the control algorithm and used toidentify or label a specific input or output within the frame-work of the PM7600B software. For example, input controlnumber 129 is a compressor high pressure monitoringpoint. Note that the control number does not necessarilycorrelate with the actual W7600/W7601 input/output ter-minal. This control number is described in the Input andOutput Options section.

Digital Input—A dry (no voltage) contact closure usedto indicate an on/off condition. The control algorithm inter-prets the condition to generate an alarm or integrate somefunction into the control algorithm. For example, a digitalinput could be a smoke alarm contact closure or a zoneunoccupied override input from a space sensor.

Analog Input—A sensor or transducer input to the W7600that measures an analog variable. Analog inputs to theW7600 can be resistance (0 to 4500 ohms), voltage (0 to 10Vdc), or current (0 to 20 mA).

Digital Output—The W7600 digital output signals anR7600 Relay Module to switch a spdt pilot duty relay.These relay outputs may be used to drive such loads as fancontactors, compressor contactors, or stages of electricheat. The digital outputs may also be used with HoneywellSeries 60 type floating actuators for floating control ofdampers.

Analog Output—A modulating current output from theW7600 analog output terminal that is wired to a damper or

63-4309—2 6

TABLE 1—CNAP NETWORK VARIABLES.NOTE: THE FOLLOWING INPUTS/OUTPUTS ARE COMMONLY USED WITH THE NETWORK VIA DATA-

SHARING.

Variable Name Description Point InformationDischarge Air Temperature Used for datasharing to zone controllers Physical analog input on VAV(Control Number 1) to indicate supply air temperature controller data shared to zone

available for zone heating or cooling. controllers.Outdoor Air Temperature Outdoor air temperature datashared Physical analog input on source(Control Number 5) among controllers from one source controller datashared to remote

point. analog inputs on destinationcontrollers.

Zone Occupied Status Summary of all VAV terminal box User assigns to remote analog(Control Number 80) control (W7620) occupied status input on the W7600. The Zone Occu-

information used to force the VAV pied Status must be datashared from thecontrol into occupied mode when W7620 VAV Box controllers to thea zone has demand: W7600 (many to one logical OR operat-1 = unoccupied ion).2 = occupied4 = unoccupied override8 = warmup16 = continuous unoccupiedNOTE: Numbers other than those

listed indicate mixed variationsof VAV box status (occupiedunoccupied, warmup, etc.).

RestoreShed flag Bump discharge air cooling Remote digital input.(Control Number 165) setpoint upward to shed cooling load.Network Occupied Flag Used to force the VAV control Remote digital input.(Control Number 166) to the occupied mode via

network communication.Network Controlled Digital Used for TOD control of lighting, Destination point for ON/OFFOutputs exhaust fans, etc. control via network. A remote digital(Control Numbers 248-255) input for the Network Controlled

Digital Output is automatically config-ured by the software when a remote dig-ital output is configured by the user.

NETWORK STATUS INDICATORS OF THE AIR HANDLING UNITHeat/Cool Mode Indicates current mode of operation Heat or Cool indicated.

of the W7600 VAV control.VAV Occupied Flag Indicates OCC/UNOCC status of the OCCUP or UNOCC indicated.

VAV air handling unit and is adigital point type for use as anetwork datashare source point.

AM Warmup Status Indicates when the W7600 VAV WARM or No WARM indicated.control determines that morningwarmup is engaged.

Econo Allowed Flag Indicates the economizer enable ECON or No ECON indicated.function so only one outdoorenthalpy sensor needs to be used on thenetwork. Used as a source point fordatasharing to other controllers.

TOD Occ Flag Indicates OCC/UNOCC status of the OCCUP or UNOCC indicated.time of day schedule only in the VAVAHU controller. Used as a networkdatashare source point.

Cool Setpoint Indicates current discharge air cooling Numerical value indicated.setpoint including reset.


7 63-4309—2

PM7600B PM7600B INPUT AND OUTPUT OPTIONS

Heat Setpoint Indicates current discharge air Numerical value indicated.heating setpoint including reset.

Cool Status Indicates the number of cooling stages Numerical stages or percentage ofcurrently on. For modulating output capacity.cooling, it indicates thepercentage of output capacity(0 to 100 percent).

Heat Status Indicates the number of heating stages Numerical stages or percentage ofcurrently on. For modulating cooling, it output capacity.indicates the percentage of outputcapacity (0 to 100 percent).

Night Operation Flag Indicates when the control is in the 255=ON 0=OFFnight mode (supplying heat tomaintain building unoccupiedsetpoint).

System on Flag Indicates system operation. 255=ON 0=OFFCool Lockout Status Indicates cool lockout state. 255=ON 0=OFFDA_CFM (S7600) Indicates Supply Fan Air Flow in CFM. Supply Fan CFMSUPPLY_AIR_CFM (ZM) Applicable to PM7600B, Version 2.0

or later.RA_CFM (S7600) Indicates Return Fan Air Flow in CFM. Return Fan CFMRETURN_AIR_CFM (ZM) Applicable to PM7600B, Version 2.0

or later.PH_STA (S7600) Indicates present status of Preheat. Preheat StatusPRE_HEAT (ZM) Applicable to PM7600B, Version 2.0 % open or # of stages on.

or later.

TABLE 1—CNAP NETWORK VARIABLES (continued).NOTE: The following inputs/outputs are commonly used with the network via datasharing.

Variable Name Description Point Information

CONFIGURATION PARAMETERS

Analog/Digital Input/Output Options and FunctionalDescription

This section includes detailed configuration informa-tion for VAV air handling unit control.:

• Configuration Parameters• Setpoint Parameters• Analog Inputs• Digital Inputs• Analog Outputs• Digital Outputs• VAV Configuration RequirementsThe tables list the available inputs and outputs, their

control numbers, the label as it appears in the S7600AKeyboard Display Module, and a functional description ofthe point as it is used in the control algorithm.

Configuration parameters are listed with their descrip-tions and recommended values. Input and output points areassigned to specific W7600 and W7601 terminals by usingthe ZM7601 or ZM7603 software. However, a W7600control system provides only the number of physical ana-

log and digital input and output channels available for theparticular W7600 model applied. For example, the W7600Aprovides four analog outputs and eight digital outputs.Therefore, if more than four analog or eight physical digitaloutputs are required, a W7601 Expansion Module must beadded to the system.

Also, inputs and outputs defined in these tables arespecific to the PM7600B, which means that inputs andoutputs defined for the PM7600B may be wired only to theW7600 containing the PM7600B.

NOTE: Alarm priority level 99 is the lowest prior-ity and will not generate an alarm in the control-ler or on the network for remote and physicalanalog inputs. This eliminates multiple alarmson the network when datasharing from a sourcepoint. All other alarms with priority 99 willgenerate alarms in the controller and on thenetwork.

63-4309—2 8

CONFIGURATION PARAMETERSUsing the ZM7601 or ZM7603 Configuration Tool Software, it is possible to program variables that affect control of the

variable air volume system. The variables that may be programmed and a brief description are listed below.

RecommendedVariable Name Variable Label Functional Description/Program Options Value

Number of Fan Stages FAN_STG Only one fan stage is available. 1Type of Supply and FAN_TYPE VAV fan actuator type.Return Fans 0 = Modulating fan control of inlet vanes

or variable speed drive.1 = Floating fan control.2 = Velocity pressure control (2-speed fan).

Fan Motor Speed FAN_MOTOR_SPEED Programmable duration, in number ofseconds, for full motor travel from 0-100%.Range = 30-160 seconds programmed tospecified motor speed; i.e., 60.Default = 100 seconds.

Supply Fan Start Delay FANSTART_DELAY Prevents fan start-up after power-up or reset 60-90condition. Valid if VN_CSD is not configured. secondsValue should equal number of seconds for fullsupply fan motor travel. One second accuracy,0-255 seconds.

Type of Cooling COOL_TYPE Programmable:Equipment 0 = Staged cooling.

1 = Stages plus floating.2 = 1 stage plus modulating cooling valve.

Number of Cool Stages COOL_STG Programmable cool stages 0-12 (totalcompressors and unloaders).

Cooling Modulation MOD_COOL_DELAY Time delay between cooling on/off stages 30 secondsDelay and cooling modulation. Fifteen second

accuracy, 0-180 seconds.Cool Motor Speed COOL_MOTOR_SPEED Programmable duration, in number of

seconds, for full motor travel from 0-100%.Range = 30-160 seconds, programmed tospecified motor speed; i.e., 60.Default = 100 seconds.

Compressor Number COMP_NUM[ ] Compressor/unloader array for configurationArray of cooling equipment. Compressors =

1, 2, 3, 4 and unloaders = 0; for example,array: 6 stages, 2 compressors, 2 unloadersper compressor programmed as:

Comp_Num [1] = 1Comp_Num [2] = 0Comp_Num [3] = 0Comp_Num [4] = 2Comp_Num [5] = 0Comp_Num [6] = 0

Compressor Minimum COOL_TIME Value used for minimum on and off time 240 secondsTime with each compressor stage and for interstage

time delay. Fifteen second accuracy, 0-3780seconds.

Unloader Minimum UNLOAD_TIME Value used for minimum on and off time 120 secondsTime with each unloader stage and for interstage

time delay. Fifteen second accuracy, 0-3780seconds.


9 63-4309—2



CONFIGURATION PARAMETERS (continued)

Cooling Reset Type COOL_RESET_TYPE Basis for resetting discharge air coolingsetpoint.Programmable:

0 = No reset1 = Reset from Space Temperature2 = Reset from Outdoor Air Temperature3 = Reset from Supply Fan Motor position4 = Reset from Return Air Temperature

Type of Economizer ECONO_TYPE Programmable:0 = No economizer.1 = Modulating with programmable

minimum position.2 = Floating with external minimum

position equipment.Economizer Motor ECONO_MOTOR_ Programmable duration, in number of Speed SPEED seconds, for full motor travel from 0-100%.

Range = 30-160 seconds, programmed tospecified motor speed; i.e., 60.Default = 100 seconds.

Water Economizer WTR_ECONO_SP When condenser inlet temperature is below 50° FSetpoint this value, condenser water is used for cooling.

One degree accuracy, 30 to 100° F.Condenser Low CND_LO_LIM When condenser temperature drops belowTemperature Limit this limit, turn off mechanical cooling. This

variable is programmable from 1 to 255° F;Unprogrammed (or 0° F only) disables thisfeature. If this variable is programmed, theanalog input CNDTMP must be configured.

Condenser Pump and CND_ECON_SYNC Allows condenser pump to turn on withEconomizer Sync economizer. When this variable is programmed

to 0, the condenser pump output turns on withcooling stages only. When this variable isprogrammed to 1, the condenser pumpoutput turns on with the cooling stages andeconomizer. When this variable isprogrammed to 1, the digital output CNDPMPmust be configured and either the digitaloutputs ECONO+ and ECONO- or the analogoutput A_ECON must be configured.

Economizer Select ECON_SELECT Select source of economizer enable:0 = Disable economizer.1 = Use Outdoor Air Enthalpy High digital

input (OD_ENT).2 = Use Condenser Inlet Temperature

and Water Economizer Setpoint.3 = Use the difference between two

analog input sensors (i.e., enablewhen Sensor 1 is less than Sensor 2minus the economizer offset).

If this variable is programmed to 2, the analoginput CNDTMP must be configured.If this variable is programmed to 3, the twoconfiguration variables ECON_SENS1 andECON_SENS2 must be programmed.

63-4309—2 10


Economizer Sensor 1 ECON_SENS1 Selects which analog inputs enable theeconomizer when ECON_SELECT has beenprogrammed to 3.Program this variable within the analognumber range of the sensors; i.e., 1-18.For example, to enable the economizer whenthe outdoor air temperature is 10 degrees belowthe return air temperature, program thefollowing variables:

ECON_SELECT = 3ECON_SENS1 = 5 (OD_TMP)ECON_SENS2 = 7 (RA_TMP)ECON_OFFSET = 10 (° F)

When these variables are programmed, the analoginputs that are selected must also be configured.In the example, the analog inputs appear inparentheses; i.e., (OD_TMP) and (RA_TMP).

Economizer Sensor 2 ECON_SENS2 The description is the same as for EconomizerSensor 1.

Type of Heating HEAT_TYPE Programmable:Equipment 0 = Staged heating.

1 = Stages plus floating.2 = 1 stage plus modulating heating valve.

Number of Heat Stages HEAT_STG Programmable heat stages 0-6.

Heat Motor Speed HEAT_MOTOR_SPEED Programmable duration, in number ofseconds, for full motor travel from 0-100%.Range = 30-160 seconds programmed tospecified motor speed; i.e., 60.Default = 100 seconds.

Heat Minimum Time HEAT_TIME Value used for minimum on and off time with 120 secondseach heat stage and for interstage time delay.Fifteen second accuracy, 0-3780 seconds.

Heating Modulation MOD_HEAT_DELAY Time delay between heating stage and heating mod- 30 secondsDelay ulation. Fifteen second accuracy, 0-180 seconds.Heating Reset Type HEAT_RESET_TYPE Basis for resetting discharge air heating setpoint.

Programmable:0 = No reset1 = Reset from Space Temperature.2 = Reset from Outdoor Air Temperature.3 = Reset from Supply Fan Motor position.4 = Reset from Return Air Temperature.

Warm-up Type WARMUP_TYPE Programmable:0 = No warm-up function1 = Warm-up until Return Air Temperature

exceeds Warm-up Heat Setpoint.2 = Warm-up until Space Temperature

exceeds Warm-up Heat Setpoint.Type of Automatic AUTO_CHANGE 0 = Only allows heating to operate whenChangeover changing from unoccupied to

occupied during morning warm-up.1 = To automatically change over from

cooling to heating any time the MorningWarm-up Sensor temperature dropsbelow the Warm-up Heat Setpoint.



11 63-4309—2


Heat Hysteresis HEAT_HYSTERESIS Sets the number of degrees above the 2° FWarm-up Heat Setpoint, where the warm-upheat sensor must be before the control disablesmorning warm-up.Range = 0 to 10° F.

Night Setback Type SETBACK_TYPE Programmable:0 = No night setback function.1 = Program night setback setpoint and

heat until Return Air Temperatureexceeds Night Setback Heat Setpoint.

2 = Heat until Space Temperature exceedsNight Setback Heat Setpoint.

Low Pressure Start Type LPSTART_TYPE 0 = Energize compressor and liquid line 1solenoid valve at the same time.

1 = Energize liquid line solenoid valve,wait for low pressure switch inputsignal and then energize compressor.

2 = Energize compressor, wait forlow pressure switch input signal andthen energize liquid line solenoidvalve.

Low Pressure Start Delay LPSTART_DELAY Control will allow low pressure at compressor 30 or 60input for this duration before alarming and de- secondsenergizing compressor. One second accuracyprogrammable, 0-255 seconds.

Condenser/Compressor CND_COMP_DEL The minimum time delay from when the 0Delay condenser pump is turned on until the com-

pressor is allowed to turn on. This variableis programmable from 1 to 255 seconds.Programming to 0 disables this feature. Whenthis variable is programmed, the digital outputsCOOL1 and CNDPMP must be configured.

Condenser Fail Delay COND_DELAY Delay from Condenser Pump start until Proof 10 secondsof Condenser Water Flow Failure is checked.Valid when condenser pump is configured.One second accuracy, 0-255 seconds.

Periodic Pump Out Rate P_PO_TIME Control will pump out compressor at this 30 minutesrate if not sequenced on due to a callfor cooling and if the low pressure switch indi-cates pressure above the low pressure cutoutsetting. One minute accuracy, 1-255 minutes.A value of 0 disables this function.

Pump Out Duration PO_TIME Maximum time for compressor pump out. 30 secondsAlarm if time exceeds programmed value.One second accuracy, 0-255 seconds.0 disables this feature.

Lead/Lag Compressor LEAD_LAG_ENABLE 0 = Disable lead/lag compressor control. 0Control 1 = Enable lead/lag compressor control.Free Cooling Delay FRE_CL_DEL Time delay after the free cooling valve 60 seconds

digital input becomes inactive beforemechanical cooling is allowed to energize.Range = 0-200 seconds. See EconomizerOperation p.33 for more information.



63-4309—2 12

Mechanical Cooling COOL_LOCKOUT When the Mechanical Cooling Lockout Sensor 45° FLockout Setpoint is below this value, all mechanical cooling is

locked out. One degree accuracy, 10 to 70° F. Avalue of Unprogrammed (or 0° F only)disables this function.

Airflow Fail Delay AIR_FLOW_FL_DLY Delay from turning on the fan until 10 secondsAirflow Failure, Dirty Filter, and Freezestatare sensed. Failures are ignored when fan isoff. One second accuracy, 0-255 seconds.

Duct High Static Limit HIGH_STATIC_LIM Above this pressure limit, control is de- 5 inchesenergized, alarm digital output turns on and analarm message is sent to the S7600. One-tenthinch accuracy from 1.0 to 10 in. wc.

Duct High Static Duration HIGH_STATIC_DUR Control allows Duct Static Pressure above 9 secondsDuct High Static Limit for a number ofcontinuous time periods before alarming andde-energizing system. Three second timeperiod programmable, 0-765 seconds.

Low Discharge Air Limit LO_DA_LIM At or below alarm limit, the W7600 will send 35° Fan alarm message to the S7600 and turn offall outputs.Range = 10-50° F.

Discharge Low LO_DA_DUR Control allows temperature at Low Discharge 45 secondsLimit Duration Air Limit for a number of continuous time

periods before alarming and de-energizingsystem. Fifteen second time periodprogrammable, 0-3825 seconds.

Discharge Air TEMP_RATE_LIM When the Discharge Air Temperature 5° F/minuteTemperature Rate of changes faster than the programmed value,Change additional cooling or heating capacity is

prevented from operating.Range = 0 to 20° F/minute.

Discharge Pressure PRESS_RATE_LIM The programmed value is the limit allowed in 2 inchesRate of Change the derivative portion of the total error used in per minute

the pressure control calculations. Effective onlywhen the derivative gain for pressure controlis unequal to zero. Range 0 to 5 in. wc/min.

Digital Input Debounce DEB_TIME0_ Control to ignore a digital input for this 0DEB_TIME36 debounce time to avoid nuisance alarms.

One second accuracy, 0-255 seconds.High Speed Fan Minimum HI_MIN_ON Defines minimum time high-speed fan digitalOn Time output will be energized. Range = 1-20 minutes.

(Two-speed fan control.)Warm-up Delay Time WU_DLY When mode changes from unoccupied to

occupied, control will delayWARMUP_DELAY seconds before deter-mining if warm-up sensor is below warm-upsetpoint, thus enabling warm-up mode.



Mechanical Cooling LOCKOUT_SENS Use to select the sensor used for mechanical 0Lockout Sensor cooling lockout:

0 = None1 = Outdoor Air Temperature (OD_TMP)2 = Condenser Inlet Temperature

(CNDTMP)


13 63-4309—2

Use Internal TOD IN_TOD Used to disable/enable W7600 internalScheduling time-of-day schedules.

0 = Use internal schedules.

1 = Disable internal TOD schedules anduse network or a digital input (160)for source of occupied indication.

When using internal schedules, control willforce occupied mode to match its schedule.It will not force unoccupied; that is, theinternal unoccupied times can be overriddenfrom a digital input or from network generatedcommands.

Discharge Air Demand- DLC_DT The amount of bump to increase the dischargeLimit-Control Setpoint air temperature setpoint (in DF) to shed load.Bump This bump will modify the setpoint in the load

saving direction (up for cooling) when a DLCshed request is received over the CNAPnetwork. The digital input number 165,RESTORE_SHED, must be configuredas a remote point to enable this function.

Supply Duct Area SUPPLY_DUCT_ Cross sectional area, in square feet, ofAREA Supply Air Duct, used to calculate and

control System Air Flow.Available range of 0 to 10,000 square feet.Applicable to PM7600B, Version 2.0 or later.

Return Duct Area RETURN_DUCT_ Cross sectional area, in square feet, ofAREA Return Air Duct, used to calculate and

control System Air Flow.Available range of 0 to 10,000 square feet.Applicable to PM7600B, Version 2.0 or later.

Preheat Coil Control PREHEAT_TYPE Selects type of output to be used to control aPreheat Coil in the outside air duct.

0 = Staged.1 = Staged and floating.2 = Staged and modulating.

Applicable to PM7600B, Version 2.0 or later.Preheat Valve PREHEAT_ Speed, in seconds, of Floating Valve MotorMotor Speed MOTOR_SPD Actuator for Preheat Coil, from closed to

open. Range is 0 to 255 seconds.Applicable to PM7600B, Version 2.0 or later.




63-4309—2 14

SETPOINT PARAMETERSThe variables listed below may be programmed by using the ZM7601 Configuration Tool Software package or the

S7600 Keyboard Display Module.

Rec-ommended

Variable Name Variable Label Functional Description/Program Options ValueAccess Code ACC_CODE1- Programmed on Controller configuration screen.

ACC_CODE4 Four digit access code required from S7600to enter program or bypass mode.Range = 0-9.

Programmed Discharge Air PRG_DAC_SP Discharge air temperature cooling setpoint from 55° FCool Temperature Setpoint S7600. To use Q7601 Setpoint Module, set value

to Unprogrammed or 0 with the PC or SPECIALon the S7600. One degree accuracy.Range = 33° F to 90° F.

Programmed Discharge Air PRG_DAC_CB Discharge air cooling control band setpoint from 4° FCool Control Band1 S7600. To use the Q7601 Setpoint Module, set

value to Unprogrammed or 0 with the PC orSPECIAL on the S7600. One degree accuracy.Range = 1° to 50° F.

Start Discharge Air START_RESET Value determines temperature when discharge 74° FCooling Reset air cooling reset begins. One degree accuracy.

Range = 0° to 200° F.End Discharge Air END_RESET Value determines temperature when discharge 68° FCooling Reset air cooling reset is at maximum. One degree

accuracy.Range = 0° to 200° F.

Discharge Air Cooling MAX_RESET Setpoint used for discharge air cooling when the 60° FReset Setpoint cooling reset sensor is at or beyond END_RESET.

One degree accuracy.Range = 20° to 100° F

Economizer Minimum MIN_ECONO_POS Programmable for modulating economizer 10%control only. One percent accuracy.Range = 0% (fully closed) to 100% (fully open).

Economizer Offset ECON_OFFSET Minimum offset between sensors 10° Fthat allows the economizer to turn on. Thisvariable is required when ECON_SELECThas been programmed to 3.Range = 0° to 100° F.

Programmed Static PRG_PRES_SP Duct static pressure setpoint from S7600. To use 3.0 inchesPressure Setpoint Q7601 Setpoint Module, set value to Unprogram-

med or 0, one-tenth in. wc accuracy.Range = 0.0-10.0 in. wc.

Programmed Static Pressure PRG_PRES_CB Duct static pressure control band setpoint from 2.0 inchesControl Band1 S7600. To use Q7601 Setpoint Module, set value

to Unprogrammed or 0, one-tenth in. wc accuracy.Range = 0.2-10.0 in. wc.

1With floating and modulating control, dead band is ±20% of programmed value for control band.


15 63-4309—2

SETPOINT PARAMETERS (continued)

1With floating and modulating control, dead band is ±20% of programmed value for control band.


Rec- ommended

Variable Name Variable Label Functional Description/Program Options ValueProgrammed Discharge Air PRG_DAH_SP Discharge air temperature heating setpoint from 100° FHeat Temperature Setpoint S7600. To use Q7601 Setpoint Module, set value

to Unprogrammed or 0 with the PC or SPECIAL onthe S7600. One degree accuracy.Range = 60 to 130° F.

Programmed Discharge Air PRG_DAH_CB Discharge air heating control band setpoint from 4° FHeat Control Band1 S7600. To use the Q7601 Setpoint Module, set value

to Unprogrammed or 0 with the PC or SPECIAL onthe S7600. One degree accuracy.Range = 1 to 50° F.

Programmed Warm-up PRG_WARM_SP Monitors Space or Return Air Temperature set- 70° FHeat Setpoint point from S7600 to warm-up control.

One degree accuracy.Range = 30° to 90° F.

Programmed Night Setback PRG_NSB_SP Monitors Space or Return Air Temperature 55° FHeat Setpoint setpoint from S7600 for night setback control.

One degree accuracy, 30° to 90° F.NOTE: Night setback cooling setpoint is not available.

Start Discharge Air HSTART_RESET This value determines temperature that discharge 65° FHeating Reset air heating reset begins. One degree accuracy.

Range = 0° to 200° F.End Discharge Air HEND_RESET Value determines temperature when discharge 70° FHeating Reset air heating reset is at maximum. One degree

accuracy.Range = 0° to 200° F.

Discharge Air Heating HMAX_RESET Setpoint used for discharge air heating when 90° FReset Setpoint heating reset sensor is at or beyond

HEND_RESET. One degree accuracy.Range = 50° to 150° F.

Pressure Proportional P_KP Proportional gain factor for duct static pressure 1Gain control. Proportional gain factor responds to

deviation of static pressure from static pressuresetpoint. Range 0 to 10.

Pressure Integral Gain P_KI Integral gain factory for duct static pressure 1control. Integral gain factor responds based onlength of time that static pressure has deviatedfrom the static pressure setpoint.Range 0 to 10.

Pressure Derivative Gain P_KD Derivative gain factor duct static pressure 0control. Derivative gain factor causes staticpressure control output of W7600 to respondbased on rate of change of duct static pressure.Range 0 to 10.

Temperature Proportional T_KP Proportional gain factor for discharge air 1Gain temperature control. Proportional gain factor

responds to deviation of discharge airtemperature from discharge air temperaturesetpoint.Range 0 to 10.

63-4309—2 16

Temperature Integral Gain T_KI Integral gain factor for discharge air temperature 1control. Integral gain factor responds based onlength of time that discharge air temperature hasdeviated from discharge air temperature setpointRange 0 to 10.

Temperature Derivative T_KD Derivative gain factor for discharge air 0Gain temperature control. Derivative gain factor causes

temperature control output of W7600 to respondbased on rate of change of discharge airtemperature.Range 0 to 10.

Minimum Velocity Limit, MIN_VEL_LIM Defines minimum allowable velocity pressure 200 FPMTwo Speed Fan (S_VEL) when fan digital output is energized.

If velocity pressure is below MinimumVelocity Limit for longer than MinimumVelocity Time Delay, W7600 will turn onAlarm digital output, turn off all other outputs,send an alarm message to S7600 and disable thecontrol.Range = 100-300 feet per minute.

NOTE: W7600 must be reset if Velocity Pressuredrops below the Minimum Velocity Limit.

Minimum Velocity MIN_VEL_DEL Defines length of time velocity pressure 3 secondsTime Delay, is allowed to be below Minimum VelocityTwo Speed Fan Limit while fan output is energized before an

alarm is generated (see Minimum Velocity Limitfunctional description).Range = 0-60 seconds.

Low To High Speed Fan LO_HI_SWITCH Defines velocity pressure setpoint at which 400 FPMSwitch Setpoint low speed fan will de-energize and high speed

fan will energize.Range = 100-600 feet per minute.

High To Low Speed Fan LO_HI_HYSTER With high speed fan energized, this setpoint 50 FPMHysteresis defines the amount of velocity pressure below

Low to High Speed Fan Switch Setpoint thatvelocity pressure sensor must sense before highspeed fan will de-energize. After High to LowSpeed Fan Time Delay has elapsed, low speedfan will energize.Range = 20-100 feet per minute.

High to Low Speed Fan HI_LO_TIME Defines length of time after high speed fan has 10 sec-Time Delay de-energized before low speed fan is energized. onds

Range = 0 to 30 seconds.

Return Fan RET_CFM_OFFSET Defines the Return Fan Air Flow Setpoint as a 80CFM Offset percentage of Supply Fan Air Flow. For example, if

supply air is 4000 CFM, and the RET_CFM_PFFSET is 80%, Return Air Setpoint is 3200 CFM(80% or 4000 CFM). Available range is 0.0 to 100%.Applicable to PM7600B, Version 2.0 or later.



Rec- ommended

Variable Name Variable Label Functional Description/Program Options Value

17 63-4309—2

Return High Static RET_STATIC_ Return Air Flow High Static Limit, in inches water 2.0Pressure Limit HI_LIM column (in. wc). Will shut down fan upon sensing

excessively high pressure. Available range is 0.0to 10.0 in. wc. Applicable to PM7600B,Version 2.0 or later.

Return Low Static RET_STATIC_ Return Air Flow Low Static Limit, in inches water -2.0Pressure Limit LO_LIM column (in. wc). Will shut down fan on sensing

excessively low pressure. Available range is -5.0 to5.0 in. wc. Applicable to PM7600B,Version 2.0 or later.

Return Fan Vane RET_FAN_ Return Fan Vane Motor Speed. Available range isMotor Speed MOTOR_SPD 0 to 255 seconds. Applicable to PM7600B,

Version 2.0 or later.

Return Fan RET_FAN_CB Return Fan Control Band Available range is 0 to 5%Control Band 100% of Supply Fan Air Flow.

Applicable to PM7600B, Version 2.0 or later.

Mixed Air Preheat MA_PRE_HT_SP Mixed Air Preheat Set Point, used to control the 55°FSetpoint Preheat Coil. Available range is 33 to 90°F.


Preheat Control PRE_HT_CB Preheat Control Band. Available range is 0 to 20°F. 6.0Applicable to PM7600B, Version 2.0 or later.

Mixed Air High MA_HI_TMP_LIM Mixed Air High Temperature Limit, for Alarm only, 100Temperature Limit no shutdown. Applicable to PM7600B,

Version 2.0 or later.

Mixed Air Low MA_LO_TMP_LIM Mixed Air Low Temperature Limit, for Alarm and 40Temperature Limit fan shutdown. Available range is 33° to 90°F.


OA Temperature OA_PRE_HT_ Outside Air Temperature above which Preheat is 45Preheat Lockout LOCKOUT locked out. Available range is 0 to 90°F.


IAQ Economizer IAQ_ECON_ Economizer Minimum Position on receipt of IAQ 30Minimum Position MIN_POS Digital Input in % Open. Available range is 0 to

100%. Applicable to PM7600B, Version 2.0 or later.

Return Fan RET_KP Return Fan Proportional Gain. 1PI Gains Range 0 to 10.

RET_KI Return Fan Integral Gain. 1Range 0 to 10.Applicable to PM7600B, Version 2.0 or later.

Preheat PRE_KP Preheat Proportional Gain. 1PI Gains Range 0 to 10.

PRE_KI Preheat Integral Gain. 1Range 0 to 10.Applicable to PM7600B, Version 2.0 or later.


Rec- ommended

Variable Name Variable Label Functional Description/Program Options Value


63-4309—2 18

ANALOG INPUTSNOTE: Physical analog input 1 of the W7600 is sampled every five seconds so it is recommended that the Discharge Static

Pressure Sensor (control number 2) be physically wired to analog input 1 of the W7600.

S7600 ControlPoint Name Label Number Functional Description

Discharge Temperature DA_TMP 1 Used to control heating and cooling.

Discharge Static Pressure PRESS 2 Used to control duct static pressure by modulating supply fanspeed or inlet vanes. Recommend wiring to analog input 1.

Condenser Inlet CNDTMP 3 Used to control precooling coil by setting limit to allow orTemperature disallow.Space Temperature SP_TMP 4 Used for control point reset, night setback or setup, morning warm-

up control features, and monitoring space condition status.Outdoor Air Temperature OD_TMP 5 Used for control point reset, equipment lockout features and as a

monitoring point for outdoor air conditions.Discharge Velocity Pressure S_VEL 6 Used to control discharge velocity pressure using low and high

speed fan.Return Air Temperature RA_TMP 7 Used for control point reset, morning warm-up control and

monitoring return air status.DA Temperature Cool DAC_SP 8 Discharge air temperature setpoint from potentiometer.Setpoint (Q7601)DA Temperature Cool DAC_CB 9 Set discharge air temperature control band from potentiometer.Control Band (Q7601)Discharge Pressure PR_SP 10 Set discharge static pressure setpoint from potentiometer.Setpoint (Q7601)Discharge Pressure PR_CB 11 Set static pressure control band from potentiometer.Control Band (Q7601)DA Temperature Heat DAH_SP 12 Discharge air heating temperature setpoint from potentiometer.Setpoint (Q7601)DA Temperature Heat DAH_CB 13 Set heating temperature control band from potentiometer.Control Band (Q7601)Mixed Air Temperature MA_TMP 14 Used as monitoring point for mixed air status.

Auxiliary Analog Inputs 1-4 SENS 1 15 The auxiliary analog inputs are used to monitor additionalSENS 2 16 analog input points not defined in this table.SENS 3 17SENS 4 18 NOTE: The S7600 label may not be modified (SENS 1-SENS 4).

NOTE: The S7600 will display only the value of the sensor and notthe associated engineering unit (° F, ° C, in. wc, %RH).

Zone Occupied Status ZN_OCC 80 Network Parameter Summary of all VAV terminal box control(Remote Analog Input (W7620) occupied status information used to force the VAVonly) control into occupied mode when a zone has demand:

1 = unoccupied2 = occupied4 = unoccupied override8 = warmup16 = continuous unoccupiedNOTE: Numbers other than those listed indicate mixed variation

of VAV box status (occ, unocc, warmup, etc.).

NOTE: If ZN-OCC is configured and data is not availabledue to a network failure or failure to datashare informa-tion to this point, the W7600 will revert to the 24 houroccupied mode.


19 63-4309—2

ANALOG INPUTS (continued)S7600 Control

Point Name Label Number Functional Description

Return Velocity R_VELP 19 Return Air Velocity Pressure Signal, in inches water column,Pressure (in. wc.). Applicable to PM7600B, Version 2.0 or later.

Return Static R_STAT 20 Return Air Static Pressure Signal, in inches water column,Pressure (in. wc.). To be used for alarm and Shutdown only, not for control

of Return Fan. Applicable to PM7600B, Version 2.0 or later.

Return Velocity R_VEL 21 Return Air Flow Velocity Signal, in fpm, from a sensor such asa hot-wire anemometer. Applicable to PM7600B,Version 2.0 or later.

Supply Velocity S_VELP 22 Supply Air Flow Velocity Pressure in inches water column,Pressure (in. wc.). Applicable to PM7600B, Version 2.0 or later.

DIGITAL INPUTS

S7600 W7600 InputPoint Name Label Control Number Functional Description

Proof of Condenser CNDFLO 128 ACTIVE = Normal operation.Water Flow INACTIVE = Turn on alarm digital output; turn off all

other outputs and send alarm message toS7600.

NOTE: The W7600 must be reset if a CondenserWater Flow Failure occurs.

High Pressure Safety HP1 129 INACTIVE = Normal operation.Switch Compressor 1 ACTIVE = Turn on alarm digital output and send alarm

message to S7600. Turn off Compressor 1and its unloader; control without Compres-sor 1.

NOTE: The W7600 must be reset if a High PressureSafety occurs.

High Pressure Safety HP2 130 As with HP1, lock out Compressor 2.Switch Compressor 2High Pressure Safety HP3 131 As with HP1, lock out Compressor 3.Switch Compressor 3High Pressure Safety HP4 132 As with HP1, lock out Compressor 4.Switch Compressor 4Compressor 1 Failure CMP_F1 133 INACTIVE = Normal operation.

ACTIVE = Turn on alarm digital output and send alarmmessage to S7600. Turn off Compressor 1and its unloader; control without Compres-sor 1.

NOTE: The W7600 must be reset if a CompressorFailure occurs.

Compressor 2 Failure CMP_F2 134 As with CMP_F1, lock out Compressor 2.

Compressor 3 Failure CMP_F3 135 As with CMP_F1, lock out Compressor 3.

Compressor 4 Failure CMP_F4 136 As with CMP_F1, lock out Compressor.

Compressor 1 Oil Pressure OIL_F1 137 INACTIVE = Normal operation.ACTIVE = Turn on alarm digital output and send alarm

message to S7600. Turn off Compressor 1and its unloader; control without Compres-sor 1.

NOTE: The W7600 must be reset if a Compressor OilPressure Failure occurs.


63-4309—2 20

Compressor 2 Oil Pressure OIL_F2 138 As with OIL_F1, lock out Compressor 2.Compressor 3 Oil Pressure OIL_F3 139 As with OIL_F1, lock out Compressor 3.Compressor 4 Oil Pressure OIL_F4 140 As with OIL_F1, lock out Compressor 4.Low Pressure 1 Safety LP1 141 OFF w/LLSV OFF= Normal operation if compressor off.

OFF w/LLSV ON= Compressor operation during startuptime delay if LP delay selected. Ifdelay is exceeded, turn off Compres-sor 1, turn on alarm digital output andsend alarm message to S7600. Controlwithout Compressor 1.

ON w/LLSV OFF = Compressor on for pump out time de-lay. If delay is exceeded, turn off Com-pressor 1, turn on alarm digital outputand send alarm message to S7600.

ON w/LLSV ON = Normal operation with compressor on.NOTE: The W7600 must be reset if a Low Pressure

Failure occurs in start-up or normal operation.Low Pressure 2 Safety LP2 142 Operation as with LP1.Low Pressure 3 Safety LP3 143 Operation as with LP1.Low Pressure 4 Safety LP4 144 Operation as with LP1.

DIGITAL INPUTS (continued)



Compressor 1 Shed SHED_1 145 INACTIVE = Normal operation.ACTIVE = Disable Compressor 1.




Outdoor Air Enthalpy OD_ENT 149 INACTIVE = Economizer enable.High ACTIVE = Economizer disable.Dirty Filter FILTER 150 INACTIVE = Normal operation.

ACTIVE = Turn on alarm digital output and send mes-sage to S7600. Does not stop fan if dirty filteroccurs.

NOTE: Not monitored if fan is off.System Switch On SYS_SW 151 INACTIVE = Disable W7600 control.

ACTIVE = Enable W7600 control.Alarm Silence AL_SIL 152 INACTIVE = Normal operation.

ACTIVE = Turn off alarm output; no annunciation.Heat Failure HT_FL 154 INACTIVE = Normal operation.

ACTIVE = Fan enabled; turn off and lock out heat. Turnon alarm digital output and send alarm mes-sage to S7600.

NOTE: The W7600 must be reset if a Heat Failureoccurs.

Fan Motor Safety FN_FL 155 INACTIVE = Normal position.ACTIVE = Turn on alarm digital output and send alarm

to S7600. Turn off all outputs and disablecontrol.

NOTE: Not monitored if fan is off.NOTE: The W7600 must be reset if a Fan Motor Safety Failure occurs.

21 63-4309—2



Duct Freezstat FREEZE 156 INACTIVE = Normal operation.ACTIVE = Turn off all outputs; disable control; turn on

alarm digital output and send alarm messageto S7600.

NOTE: Not monitored if fan is off.NOTE: The W7600 must be reset if a Duct Freezstat

Failure occurs.Proof of Airflow AIRFLO 157 ACTIVE = Normal operation.

INACTIVE = Turn on alarm digital output and send alarmmessage to S7600. Turn off all outputs anddisable control. Does not stop fan if unitfailure occurs.

NOTE: Not monitored if fan is off.NOTE: The W7600 must be reset if an Airflow Failure

occurs.Manual Control Reset RESET 158 INACTIVE = Normal operation.

ACTIVE = Turn off all outputs; restart control and ini-tialize system.

Proof of Free Cooling FRE_CL 159 INACTIVE = Free cooling valve closed.ACTIVE = Free cooling valve open.

Day Occupied Switch DAY_NT 160 INACTIVE = Unoccupied or real-time clock occupied/un-occupied control.

ACTIVE = Occupied mode and setpoints.System Safety SYS_FL 161 INACTIVE = Normal operation.

ACTIVE = One or more combined safety alarms: turnon alarm digital output and send alarm mes-sage to S7600. Turn off all outputs and dis-able control.

NOTE: The W7600 must be reset if a System SafetyFailure occurs.

Heat Mode HEAT 162 INACTIVE = No heating, morning warmup or nightheating available.

ACTIVE = Enable heat mode (if heating isconfigured).

Vanes Closed VN_CSD 163 INACTIVE = On start-up only, hold off supply fan start.ACTIVE = On start-up only, enable supply fan start.

Duct High Pressure DHP_SW 164 INACTIVE = Normal operation.ACTIVE = Turn off all outputs and disable control. Send

alarm message to S7600 and turn on alarmdigital output.

NOTE: Not monitored if fan is off.NOTE: The W7600 must be reset if a Duct High

Pressure Failure occurs.DLC Restore/Shed Flag R_SHED 165 Demand Limit Control (DLC) input for discharge air

temperature setpoint bump to initiate load shed. Remoteinput via network from W7600G Building DDC:

ACTIVE = Restore to normal setpoint.INACTIVE = Shed load via setpoint bump.


63-4309—2 22



Network Occupied Flag NTWRK_ 166 Occupied flag for network input of occupied status.OCC_FLAG Remote input via network:

ACTIVE = OCCINACTIVE = UNOCCNOTE: If the Network Occupied Flag is configured and

data is not available due to a network failure orfailure to datashare information to this point, theW7600 will revert to the 24 hour OCCUPIEDMODE.

Auxiliary Digital Inputs SW_1 167 Digital input control numbers 165-168 are auxiliarySW_2 168 inputs that can be used for digital input monitoringSW_3 169 only. These inputs are not used in the control algorithm.SW_4 170 The S7600 label (SW_1-SW_4) cannot be modified.

Ret Fan Status RA_FLO 171 Return Air Flow OK Indication.Application to PM7600B, Version 2.0 or later.

Indoor Air Quality IAQ 172 Indoor Air Quality (IAQ) Sensor. Sets economizer minimumposition as follows:

ACTIVE = IAQ_MIN_ECON_POS Setpoint.INACTIVE = MIN_ECON_POS Setpoint.

ALARM = Bad Air.Applicable to PM7600B, Version 2.0 or later.

ANALOG OUTPUTS

ControlPoint Name S7600 Label Number Functional Description

Supply Fan Motor (4-20 mA Output) A_FAN 51 Modulating supply fan speed control.Economizer Motor (4-20 mA Output) A_ECON 52 Modulating outside air damper positioning con-

trol.Modulating Cool (4-20 mA Output) A_COOL 53 Modulating cool damper or valve positioning con-

trol.Modulating Heat (4-20 mA Output) A_HEAT 54 Modulating heat damper or valve positioning con-

trol.Return Fan Vanes R_FAN 55 Modulating Return Air Fan Dampers,

Motor Speed Control in %.Applicable to PM7600B, Version 2.0 or later.

Preheat Coil PRE_HT 56 Modulating Preheat Valve/Dampers,Motor Speed Control, in %.Applicable to PM7600B, Version 2.0 or later.


23 63-4309—2


DIGITAL OUTPUTSS7600 Control

Point Name Label Number Functional DescriptionCompressor or Unloader Stage 1 COOL1 178 OFF = Cooling stage 1 off.

ON = Cooling stage 1 on.Compressor or Unloader Stage 2 COOL2 179 OFF = Cooling stage 2 off.











ON = Cooling stage 12 on.Liquid Line Solenoid Valve 1 LLSV1 190 OFF = Liquid line solenoid valve (Compressor 1) closed.

ON = Liquid line solenoid valve (Compressor 1) open.Liquid Line Solenoid Valve 2 LLSV2 191 OFF = Liquid line solenoid valve (Compressor 2) closed.



ON = Liquid line solenoid valve (Compressor 4) open.Fan Output FAN 194 OFF = Fan off.

ON = Fan on.Heating Stage 1 HEAT1 196 OFF = Heating stage 1 off.

ON = Heating stage 1 on.Heating Stage 2 HEAT2 197 OFF = Heating stage 2 off.





ON = Heating stage 6 on.Alarm Output ALARM 202 OFF = No alarm present or silenced through alarm silence

input on S7600.ON = Alarm present. Turn on annunciation.

Supply Motor Open SUPLY+ 203 OFF = No action.(Floating Output)1 ON = Drive vanes open to increase air volume.

63-4309—2 24

Economizer Motor Close1 ECON- 208 OFF = No action.ON = Drive valve or damper toward closed position (air

or water economizer applications).

VAV Box Open VBOX+ 209 OFF = No action.ON = Signal to VAV box damper to fully open for

morning warm-up (heat enable function) and nightsetback (optional with W7620 applications).

Cool Load COOL+ 210 OFF = No action. (Floating Output)1 ON = Load cooling capacity by stage.

Cool Unload COOL- 211 OFF = No action.(Floating Output)1 ON = Unload cooling capacity by stage.

Heat Load HEAT+ 212 OFF = No action.(Floating Output)1 ON = Load heating capacity by stage.

Heat Unload HEAT- 213 OFF = No action.(Floating Output)1 ON = Unload heating capacity by stage.

Condenser Pump CNDPMP 214 OFF = Condenser pump off.ON = Condenser pump on.

Occupied Mode OCCUP 215 OFF = Annunciate unoccupied mode.ON = Annunciate occupied mode.

Condenser Water Bypass Valve BP_VLV 216 OFF = Condenser Water Bypass Valve is closed or closing.ON = Condenser Water Bypass Valve is open or opening.

Low Speed Fan FAN_LO 217 OFF = Low Speed Fan is off.ON = Low Speed Fan is on.

High Speed Fan FAN_HI 218 OFF = High Speed Fan is off.ON = High Speed Fan is on.

Return Fan RETFAN 219 Return Fan Start/Stop Output.Start Stop

Preheat Stage PREHT1 220 On/Off Stage of Preheat.

Preheat Plus PREHT+ 222 PreHeat Floating Motor Open Signal.

Preheat Minus PREHT- 223 PreHeat Floating Motor Close Signal.

Ret Fan Plus RETFN+ 224 Return Air Floating Motor Open Signal.

Ret Fan Minus RETFN- 225 Return Air Floating Motor Close Signal.

1Analog outputs configured as digital outputs cannot be used for floating control.

DIGITAL OUTPUTS (continued)


S7600 ControlPoint Name Label Number Functional Description

Supply Motor Close SUPLY- 204 OFF = No action.(Floating Output)1 ON = Drive vanes closed to decrease air volume.

Proof of Airflow AIR_OK 205 OFF = Airflow has not been proven.ON = Airflow has been proven. The fan digital output

is on and either airflow digital input (if configured)is on or velocity pressure analog input (if configured)is above the velocity pressure low limit.

Outdoor Air Damper OD_DMP 206 OFF = Outdoor air damper is closed or closing.ON = Outdoor air damper is open or opening.

Economizer Motor Open ECON+ 207 OFF = No action.(Floating Output)1 ON = Drive valve or damper toward open position (air

or water economizer applications).

25 63-4309—2

InputVariable Control

Point Name Label Number DescriptionNetwork Controlled Digital Output 1 N_DO_1 248 Remote input via network

OFF = De-energizedOn = Energized

Network Controlled Digital Output 2 N_DO_2 249 Remote input via networkOFF = De-energizedON = Energized







(Network Controlled Digital Input 1) with the same name.The CNAP No Response Timer for the remote digitalinput must be configured by the user. The control algo-rithm of the W7600 VAV controller uses the state of theNetwork Controlled Digital Input to toggle the NetworkControlled Digital output ON or OFF. The NIU actuallyuses the Remote Digital Input associated with the NetworkContolled Digital Output as the destination point for thedatasharing operation. The Network Controlled DigitalInput can be viewed in the digital inputs summary of theconfiguration software and in the View Status windowwhile on line with the site.

NETWORK CONTROLLED DIGITAL OUTPUTSConfigure physical digital outputs to receive ON/OFF

instructions via the network. Datasharing configuration ofthe Q7640 Network Interface Unit is also required for thisfunction.

Configuration of Network Controlled Digital OutputsA datasharing pair must be configured in the Network

Interface Unit for this feature. When a Network ControlledDigital Output is configured in the W7600 VAV AHUcontroller (e.g., Network Controlled Digital Output 1) thesoftware will automatically configure a remote digital input


63-4309—2 26

VAV CONFIGURATION REQUIREMENTSNOTE: This table provides requirements for configuring the W7600 VAV control.

Variable Type Coding[CV] = PC Configurable Variable [AI] = Analog Input [AO] = Analog Output

[SP] = S7600 or PC Setpoint [DI] = Digital Input [DO] = Digital Output

Control Value Control Dependent DependentNumber Variable Required Required Number Variable Required Value Required

FAN CONTROL[CV] FAN_STG 1 194 [DO] FAN Must be

configured.STATIC PRESSURE CONTROL

To disable static pressure control, do not configure [AI] PRESS.[CV] PRESS_RATE_LIM 1-5 INW/minute None N/A[SP] PRG_PRES_SP or 0.0-10.0 INW None N/A

10 [AI] PR_SP Set None N/APRG_PRES_SPto Unprog. or 0.

2 [AI] PRESS Must be None N/AWire on AI #1 for 5 second configured.read time.[SP] PRG_PRES_CB or 0.5-10.0 INW None N/A

11 [AI] PR_CB Set None N/APRG_PRES_CBto Unprog. or 0.

[CV] HIGH_STATIC_LIMIT 1.0-10.0 INW None N/A[CV] HIGH_STATIC_DUR 0-765 seconds None N/A

[CV] FAN_TYPE 0 or 51 [AO] A_FAN Must beconfigured.

194 [DO] FAN1 [CV] FAN_MOTOR_SPEED 30-160 seconds

194 [DO] FAN Must be

configured.203-204 [DO] SUPLY+, SUPLY-

VELOCITY PRESSURE CONTROLSupply duct static pressure and velocity pressure cannot be controlled simultaneously. The W7600 will control supplyduct static pressure if FAN_TYPE = 0 or 1. The W7600 will control supply velocity pressure if FAN_TYPE = 2.

[CV] FAN_TYPE 2 None N/A

6 [AI] V_PRES Must be [SP] MIN_VEL_LIM 100-300 feetWire on AI #1 for 5 second configured. per minute.read time. [SP] MIN_VEL_DEL 0-60 seconds

217 [DO] FAN_LO Must be None N/Aconfigured.

218 [DO] FAN_HI Must be None N/Aconfigured.

[CV] HI_MIN_ON 1-20 seconds None N/A[SP] HI_LO_TIME 0-30 seconds None N/A[SP] LO_HI_SWITCH 100-600 feet None N/A

per minute.[SP] LO_HI_HYSTER 20-100 feet None N/A

per minute.


27 63-4309—2


HEATING CONTROLTo disable heating control, set HEAT_STG =0; otherwise, set HEAT_STG to 1-6 for number of stages.

[CV] HEAT_TYPE 0, 1, or 2 See below.With 0, 1, or 2 [CV] TEMP_RATE_LIM 1°-20° F/minute

1 [AI] DA_TMP Must beconfigured.

[CV] HEAT_STG 1-6196-201 [DO] HEAT1-6 Equal

HEAT_STGs[CV] HEAT_TIME 0-3780 seconds[SP] PRG_DAH_SP or 60° to 130° F

12 [AI] DAH_SP SetPRG_DAH_SPto Unprog.,0° F or -18° C.

[SP] PRG_DAH_CB or 1° to 50° F13 [AI] DAH_CB Set

PRG_DAH_CBto Unprog. or 0.

With 1 [CV] MOD_HEAT_DELAY 0-180 seconds[CV] HEAT_MOTOR_SPEED 30-160 seconds

212-213 [DO] HEAT+, HEAT- Must beconfigured.

With 2 [CV] MOD_HEAT_DELAY 0-180 seconds54 [AO] A_HEAT Must be

configured.[CV] HEAT_STG Must equal 1.

[CV] HEAT_RESET_TYPE 0, 1, 2, 3, or 4 See below.0 to disable None N/AWith 1, 2, 3, or 4 [SP] HMAX_RESET 50° to 150° F

[SP] HSTART_RESET 0° to 200° F[SP] HEND_RESET 0° to 200° F

With 1 4 [AI] SP_TMP Must beconfigured.

With 2 5 [AI] OD_TMPWith 3 51 [AO] A_FANWith 4 7 [AI] RA_TMP

[CV] AUTO_CHANGE 0 or 1 None N/A

COOLING CONTROLTo disable cooling control, set COOL_STG = 0; otherwise, set COOL_STG to 1-12 for number of stages.

[CV] COOL_TYPE 0, 1, or 2 See below.With 0, 1, or 2 [CV] TEMP_RATE_LIM 1°-20° F/minute


[CV] COOL_STG 1-12

VAV CONFIGURATION REQUIREMENTS (continued)


63-4309—2 28

Control Value Control Dependent DependentNumber Variable Required Required Number Variable Required Value RequiredCOOLING CONTROL (continued)

[CV] COOL_TYPE With 0, 1, or 2 178-189 [DO] COOL1-12 Equal(continued) (continued) COOL_STGs

[CV] COOL_TIME 0-3780 seconds[CV] UNLOAD_TIME 0-3780 seconds[SP] PRG_DAC_SP or 30° to 90° F

8 [AI] DAC_SP SetPRG_DAC_SPto Unprog., 0° For 18° C.

[SP] PRG_DAC_CB or 1° to 50° F9 [AI] DAC_CB Set

PRG_DAC_CBto Unprog. or 0.

With 1 [CV] MOD_COOL_DELAY 0-180 seconds[CV] COOL_MOTOR_SPEED 30-160 seconds

210-211 [DO] COOL+, COOL- Must beconfigured.

With 2 [CV] COOL_STG Must equal 1.[CV] MOD_COOL_DELAY 0-180 seconds

53 [AO] A_COOL Must beconfigured.

[CV] COOL_RESET_TYPE 0, 1, 2, 3, or 4 See below.0 to disable None N/AWith 1, 2, 3, or 4 [SP] MAX_RESET 20° to 100° F

[SP] START_RESET 0° to 200° F[SP] END_RESET 0° to 200° F

With 1 4 [AI] SP_TMP Must beWith 2 5 [AI] OD_TMP configured.With 3 51 [AO] A_FANWith 4 7 [AI] RA_TMP

[CV] COOL_LOCKOUT 0 to disable or None N/A10° to 70° F [CV] COOL_STG 1-12

[CV] LOCKOUT_SENS 1-2[CV] LOCKOUT_SENS 0, 1, 2 See below.

0 to disable None N/A1 5 [AI] OD_TMP Must be

configured.2 3 [AI] CNDTMP

[CV] CND_COMP_DEL 0 to disable or None N/A1-255 seconds 178 [DO] COOL1 Must be

configured.214 [DO] CNDPMP

[CV] COMP_NUM [ ] COMPR/ Must include same N/AUNLOADER compressor and loaderARRAY sequence as the actual

equipment being controlled.



29 63-4309—2


Control Value Control Dependent DependentNumber Variable Required Required Number Variable Required Value RequiredCOOLING CONTROL (continued)

[CV] LPSTART_TYPE 0, 1, or 2 See below.0 to disable None N/AWith 1 or 2 141-144 [DI] LP1-4 ≥ LP1,

1 minimumconfigured

190-193 [DO] LLSV1-4, ≥ LLSV1,1 minimumconfigured.

[CV] LPSTART_DELAY 0-255 seconds[CV] P_PO_TIME 0 to disable or None N/A

1-255 seconds 141-144 [DI] LP1-4 1 minimumconfigured.

190-193 [DO] LLSV1-4[CV] PO_TIME 0 to disable or

1-255 seconds.[CV] CND_LO_LIM 0 to disable or None N/A

1-255 seconds 3 [AI] CNDTMP Must beconfigured.

[CV] LEAD_LAG_ENABLE 0 to disable None N/A1 to enable None N/A

ECONOMIZER[CV] ECONO_TYPE 0, 1, or 2 See below.

0 to disable None N/AWith 1 or 2 [CV] ECON_SELECT 1, 2 or 3


[SP] PRG_DAC_SP or 30° to 90° F8 [AI] DAC_SP Set

PRG_DAC_SPto Unprog.,0° F or -18° C.

[SP] PRG_DAC_CB or 1° to 50° F9 [AI] DAC_CB Set

PRG_DAC_CBto Unprog. or 0.

With 1 [SP] MIN_ECONO_POS 0-100%52 [AO] A_ECON Must be

configured.With 2 [CV] ECON_MOTOR_SPEED 30-160 seconds

207-208, [DO] ECON+, ECON- Must beconfigured.

[CV] CND_ECON_SYNC 0 or 1 See below.0 None N/A1 214 [DO] CNDPMP Must be

configured.[CV] ECONO_TYPE 1 or 2


63-4309—2 30

VAV CONFIGURATION PARAMETERS (continued)

Control Value Control Dependent DependentNumber Variable Required Required Number Variable Required Value RequiredECONOMIZER (continued)

[CV] ECON_SELECT 0, 1, 2, or 3 See below.0 to disable None N/AWith 1, 2, or 3 [CV] ECONO_TYPE 1 or 2With 1 149 [DI] OD_ENT Must be

configured.With 2 [SP] WTR_ECONO_SP 30° to 100° F

3 [AI] CNDTMP Must beconfigured.

With 3 [CV] ECON_SENS1 & 2 Two AI controlnumbers

AI XX [AI] For ECON_SENS1 Must beconfigured.

AI XX [AI] For ECON_SENS2[CV] ECON_OFFSET 0° to 100° F

WARMUP CONTROL[CV] WARMUP_TYPE 0, 1, or 2 See below.

0 to disable None N/AWith 1 or 2 [SP] PRG_WARM_SP 30° to 90° F

[CV] HEAT_STG 1-6[CV] AUTO_CHANGE 0 or 1[CV] HEAT_HYSTERESIS 0° to 10° F

With 1 7 [AI] RA_TMP Must beconfigured.

With 2 4 [AI] SP_TMP

OCCUPIED/UNOCCUPIED CONTROL[CV] SETBACK_TYPE 0, 1, or 2 See below.

0 to disable None N/AWith 1 or 2 [SP] PRG_NSB_SP 30 to 90° F

160 [DI] DAY_NT or Must be161 [DI] NTWRK_OCC_FLAG or configured.

[SP] RTC OCC/UNOCC[CV] HEAT_STG 1-6

With 1 7 [AI] RA_TMP Must beconfigured.

With 2 4 [AI] SP_TMP

OPTIONAL[CV] AIR FLO 0-255 seconds 157 [DI] AIR FLO Must be

configured.[CV] COND_DELAY 0-255 seconds 128 [DI] CND FLO

214 [DO] CNDPMP[CV] LO_DA_LIM 10° to 50° F [CV] LO_DA_DUR 0-765 seconds


[CV] FANSTART_DELAY 0-255 seconds 163 [DI] VN_CSD[CV] DEB_TIME0 0-255 seconds 128 [DI] CND FLO[CV] DEB_TIME1 0-255 seconds 129 [DI] HP1


31 63-4309—2

Control Value Control Dependent DependentNumber Variable Required Required Number Variable Required Value RequiredOPTIONAL (continued)

[CV] DEB_TIME2 0-255 seconds 130 [DI] HP2 Must be[CV] DEB_TIME3 0-255 seconds 131 [DI] HP3 configured.[CV] DEB_TIME4 0-255 seconds 132 [DI] HP4[CV] DEB_TIME5 0-255 seconds 133 [DI] CMP_F1

[CV] DEB_TIME6 0-255 seconds 134 [DI] CMP_F2[CV] DEB_TIME7 0-255 seconds 135 [DI] CMP_F3

[CV] DEB_TIME8 0-255 seconds 136 [DI] CMP_F4

[CV] DEB_TIME9 0-255 seconds 137 [DI] OIL_F1[CV] DEB_TIME10 0-255 seconds 138 [DI] OIL_F2

[CV] DEB_TIME11 0-255 seconds 139 [DI] OIL_F3

[CV] DEB_TIME12 0-255 seconds 140 [DI] OIL_F4[CV] DEB_TIME17 0-255 seconds 145 [DI] SHED_1

[CV] DEB_TIME18 0-255 seconds 146 [DI] SHED_2

[CV] DEB_TIME19 0-255 seconds 147 [DI] SHED_3[CV] DEB_TIME20 0-255 seconds 148 [DI] SHED_4

[CV] DEB_TIME22 0-255 seconds 150 [DI] FILTER

[CV] DEB_TIME26 0-255 seconds 154 [DI] HT_FL[CV] DEB_TIME27 0-255 seconds 155 [DI] FN_FL

[CV] DEB_TIME28 0-255 seconds 156 [DI] FREEZE

[CV] DEB_TIME29 0-255 seconds 157 [DI] AIRFLO[CV] DEB_TIME31 0-255 seconds 159 [DI] FRE_CL

[CV] FRE_CL_DEL 0-200 seconds[CV] DEB_TIME33 0-255 seconds 161 [DI] SYS_FL Must be

configured.[CV] DEB_TIME36 0-255 seconds 164 [DI] DHP_SW

[SP] ACC_CODE1 0-9 None N/A[SP] ACC_CODE2 0-9 None

[SP] ACC_CODE3 0-9 None

[SP] ACC_CODE4 0-9 None N/A14 [AI] MA_TMP N/A None N/A

15-18 [AI] SENS_1-4 N/A None N/A

145 [DI] SHED_1 N/A 178 [DO] COOL1 Must beconfigured.

146 [DI] SHED_2 N/A [DO] COOLX Must beconfigured foreach compressor.

147 [DI] SHED_3 N/A [DO] COOLX

148 [DI] SHED_4 N/A [DO] COOLX

151 [DI] SYS_SW N/A None N/A152 [DI] AL_SIL N/A 202 [DO] ALARM Must be

configured.158 [DI] RESET N/A None N/A

162 [DI] HEAT N/A [CV] HEAT_STG 1-6

163 [DI] VN_CSD N/A None NA164 [DI] DHP_SW N/A None

167-170 [DI] SW_1-4 N/A None

VAV CONFIGURATION PARAMETERS (continued)


63-4309—2 32

OPTIONAL (continued)205 [DO] AIR_OK N/A 157 [DI] AIR_FL or Must be

configured.6 [AI] V_PRES

206 [DO] OD_DMP N/A None N/A209 [DO] VBOX+ N/A None215 [DO] OCCUP N/A None216 [DO] DP_VLV N/A [DI] FRE_CL Must be

configured.



PM7600BPM7600B INPUT AND OUTPUT OPTIONS • OPERATION

OperationThe W7600 Control Module provides customized soft-

ware to maintain consistent discharge air temperature andduct static pressure in Variable Air Volume (VAV) sys-tems. Efficient control of supply fan, economizer, heatingand cooling equipment is essential to the W7600 system.The system also provides monitoring and alarm for safetyinputs to protect VAV equipment. Control responds to aProportional plus Integral plus Derivative (P+I+D) algo-rithm with specific strategies for heating, cooling and staticpressure. The P+I+D control algorithm eliminates offsetbetween the setpoint and the sensed temperature for precisedischarge air temperature and static pressure control. Thealgorithm allows setpoint control within a specified sensi-tivity range throughout all load conditions.

The system offers numerous input and output optionsincluding analog outputs for modulating control, and digi-tal outputs for energizing and de-energizing stages of heat-ing and cooling. Inputs and outputs are user programmable,as are control parameters such as number of stages, mini-mum on/off times, reset type, motor speed, etc. Dischargeair temperature and static pressure setpoints are individu-ally user programmable. Space or return air temperature ismonitored and heating may be energized when the tem-perature drops below a programmable setpoint. The systemprovides a programmable morning warm-up setpoint that ismonitored for transition from night mode to occupied tem-perature. This setpoint also enables a changeover to heatmode during the occupied mode if the temperature dropsbelow setpoint. The system also provides night setback andmorning warm-up in the heat mode. In cool mode, thesystem allows shut-down for the unoccupied period. Out-door air temperature may be monitored. The W7600 sys-tem maintains discharge air temperature and duct staticpressure based on user programmable setpoint and controlband parameters. Setpoint is defined as the desired tem-perature and pressure conditions. Control band is a devia-tion band around the setpoint that is acceptable in the duct.Discharge air or duct static conditions that are above thecooling setpoint or below the heating setpoint generate a

demand signal to control the system as outlined in thisspecification.

NOTE: THE W7600 VAV control algorithm reads theanalog inputs every fifteen seconds, with the exception ofanalog input 1, which is read every five seconds. Thecontrolled outputs are updated every fifteen seconds,with the exception of the pressure output, which is up-dated every five seconds. Analog outputs (modulating)change the controlled device at the rate of one percent persecond; i.e., 0 percent requires 100 seconds. The control-ler determines whether it should change from cooling toheating or from heating to cooling mode once per minute.Minimum on and off times for heating and cooling mustbe satisfied before the changeover can occur.

CHARACTERISTICS OF PROPORTIONAL,PROPORTIONAL PLUG INTEGRAL (P+I) ANDPROPORTIONAL PLUS INTEGRAL PLUS DE-RIVATIVE CONTROL (P+I+D)

The user can configure the proportional, integral andderivative gains in the control algorithm to adjust thecontrol to the user’s needs. However, it is recommendedthat the default settings be used whenever possible toavoid erratic control of temperature and static pres-sure. The characteristics of the control options are dis-cussed below.

PROPORTIONAL CONTROLIn proportional control, the final control element moves

to a position proportional to the deviation of the value of thecontrolled variable from the setpoint. The position of thefinal control element is a linear function of the value of thecontrolled variable.

PROPORTIONAL-INTEGRAL (PI) CONTROLProportional-integral (PI) control, also called propor-

tional-plus-reset control, virtually eliminates offset andmakes the proportional band nearly invisible. The major

33 63-4309—2

difference between proportional and PI control is that pro-portional control is limited to a single final control elementposition for each value of the controlled variable. PI controlchanges the final control element position to accommodateload changes while keeping the control point at or very nearthe setpoint.

The reset action of the integral component shifts theproportional band, as necessary, around the setpoint as theload on the system changes. The shifting of the propor-tional band keeps the control point at setpoint by makingfurther corrections in the control signal. Because offset iseliminated, the proportional band is usually set fairly wideto ensure system stability under all operating conditions.

Integral windup, or an excessive overshoot condition,can occur in PI control. Integral windup is caused by theintegral function making a continued correction while wait-ing for feedback on the effects of its correction. Whileintegral action keeps the control point at setpoint duringsteady state conditions, large overshoots are possible atstart-up or during system upsets (e.g., setpoint changes orlarge load changes). On many systems, short reset timesalso cause overshoot.

PROPORTIONAL-INTEGRAL-DERIVATIVE (PID)CONTROL

Proportional-integral-derivative (PID) control adds thederivative function to PI control. The derivative functionopposes any change and is proportional to the rate ofchange. The more quickly the control point changes, themore corrective action the PID system provides.

If the control point moves away from the setpoint, thederivative function outputs a corrective action to bring thecontrol point back more quickly than through integralaction alone. If the control point moves toward the setpoint,the derivative function reduces the corrective action to slowdown the approach to setpoint, which reduces the possibil-ity of overshoot.

VARIABLE AIR VOLUME FAN CONTROLOPTIONS

The W7600 can be configured to control variable airvolume fans in three basic ways:

• Supply Fan only (no return fan) using Supply StaticPressure Control.

• Two-Speed Supply Fan only (no return fan) usingsupply and return duct velocity pressure control.

• Supply and Return Fans using Supply Static Pressureto control the supply fan, and using supply and returnair velocities to control the return fan.

These three methods are described inthe following sec-tions.

SUPPLY AIR FAN CONTROL-STATIC PRESSUREThe W7600 system evaluates supply duct pressure con-

ditions to determine the need for control action. Control isbased on demand from an analog static pressure sensor, anda setpoint and control band setting measured in in. wc. Onindication of an increase or drop in pressure from thesensor, the control references setpoint and control band todetermine necessary action. The static pressure sensor should

be located downstream of the supply fan for a representa-tive duct static pressure reading.

NOTE: A guideline is to mount the sensor two-thirds of the way down the supply duct. Thesensor should also be mounted in an area withno air turbulence.

Under conditions that require action, the system willmaintain accurate static pressure by adjusting supply fancapacity. Fan control options include floating or modulat-ing motors. Floating motors are controlled by two relayopen and close signals to move a modulating motor con-nected to the inlet vanes of the supply fan. The systemallows the user to program the time for motor speed to openand close. Under conditions that require an adjustment toduct pressure, the system uses the motor speed to calculatethe necessary open or close signal to send to the motor.Modulating pressure control provides a true analog output(0-10 Vdc or 0-20 mA) to directly control vane position orfan speed. The system also includes static pressure safetiesand limits including high pressure alarm monitor, airflowsafety, fan start-up delay and system safety.

TWO-SPEED FAN-VELOCITY PRESSURE CON-TROL

The W7600 can be configured to control supply andreturn duct velocity pressure using a two-speed fan. Thisoption is selected by setting the FAN_TYPE Configurationparameter to 2. Note that if this option is selectred, thesupply duct static pressure cannot be controlled. The two-speed fan velocity pressure method of control uses low andhigh fan speeds for air distribution. Control is based on thedemand from an analog velocity pressure sensor, the se-lected low to high speed fan switch setpoint and the high tolow speed fan hysteresis configured.

When many of the VAV boxes in the system are open,the air velocity increases as the duct static pressure de-creases. The low speed fan is de-energized and the highspeed fan is energized when the duct velocity pressureincreases above the low to high speed fan setpoint. Thehigh speed fan will remain on for at least the high speed fanminimum on time selected. After the minimum time haselapsed, the high speed fan remains operating until thevelocity pressure drops below the low to high fan speedswitch setpoint minus the high to low speed fan hysteresis.When the fan speed switches from high to low, the lowspeed fan will not start until after the high to low speed fantime delay has elapsed. This parameter can be selectedwithin the range from 0 to 30 seconds.

SUPPLY AND RETURN FANS-VELOCITY PRES-SURE CONTROL

The supply fan is controlled to maintain supply ductstatic pressure at a setpoint (same algorithm as for SUPPLYAIR FAN CONTROL-STATIC PRESSURE.)

The Return Fan Air Flow setpoint is determined as apercentage of Supply Fan Air Flow. For example, if supplyair is running at 4000 CFM, and the RET_CFM_OFFSETsetpoint parameter is 80%, the Return Air Flow Setpoint is

PM7600BOPERATION

63-4309—2 34

80% of 4000, or 3200 CFM. The return fan is then con-trolled to maintain its output at 3200 CFM.

A return air mounted static pressure input is availablefor monitoring/alarming only. There is no control functionassociated with the return air static pressure input.

DISCHARGE AIR TEMPERATURE CONTROLThe W7600 control system allows separate program-

mable setpoints and control bands for discharge air heatingand cooling. The system controls to the cooling setpointunless heat mode changeover is enabled. Heat mode maybe enabled by space or return air temperature, as selected bythe user. Heat operation is based on distinct setpoints andconditions such as morning warm-up, occupied heat mode,and night setback. Control outputs are available for staged,floating or modulating economizer, cooling and heating.With floating control, the system calculates the open andclose time duration of the equipment, and adjusts open andclose time duration to the speed of the motor. For modulat-ing outputs, the system takes direct control of valve ordamper position. A discharge air low temperature feature isprovided as a general temperature control safety and alarmpoint.

Under conditions that require cooling, the system evalu-ates whether an economizer may be used for outdoor aircooling before mechanical cooling is energized. Controloutputs are available for air and water economizer. Aminimum position function is programmable with modu-lating economizer only, while floating control assumes amechanical minimum position.

When the economizer is unable to satisfy demand forcooling, the system will enable mechanical cooling. TheW7600 allows configuration of up to 12 compressor orunloader stages for mechanical cooling to be sequenced onand off to maintain discharge temperature. These stagesmust be configured into compressor loops to enhance cool-ing control. A compressor loop includes a compressorunloader, liquid line solenoid valve and low pressure safetyswitch. A maximum of four compressor loops may beconfigured.

There are three user programmable options for controlof a compressor loop. The first option is called the no lowpressure delay method, and it simultaneously turns on thecompressor and liquid line solenoid valve. As the nameindicates, there is no delay for the low pressure safetyswitch, and an alarm is sounded only if low pressure inputfalls within a programmable low pressure start delay. Withthe second control option, called low pressure delay type 1,the liquid line solenoid valve is opened, but the compressoris not energized until the low pressure input closes. The lowpressure alarm may still be enabled, based on the lowpressure start delay, which was described above. With thethird option, called low pressure delay type 2, the compres-sor is started and a vacuum is initiated. When the lowpressure switch sends an input signal to the W7600 ControlModule, the liquid line solenoid valve is then energized.

With a multiple compressor/unloader operation and thelead/lag option disabled, the system energizes Compressor1 first and sequences through unloader stages on a call forcooling. Then the system moves on to Compressor 2 and

unloaders. When cooling demand decreases, the unloaderssequence off first and Compressor 2 sequences off after allthe unloaders for Compressor 1 are de-energized. On acompressor failure, the affected cooling stage is locked outbut cooling function continues with other loops. User pro-grammable minimum on/off/interstage time delays are avail-able for compressors. In addition to staged control, thesystem allows floating and modulating control as notedabove. If any system failure occurs, and the pump outselection was chosen, the system pumps out the compres-sors when the control shuts down. At the same time, theremaining outputs are turned off.

The W7600 also provides discharge air temperaturereset upward on a programmable schedule that is selectedfrom space, return air or outside air. The system incorpo-rates an unoccupied mode feature to de-energize fan andcooling equipment. Mechanical cooling safeties and limitsinclude compressor high pressure, compressor oil pressure,outdoor temperature cooling lockout and periodic compres-sor pump out.

Under conditions that require heating, the system con-trols discharge air temperature by enabling heating equip-ment. On a call for heating, the system will effect achangeover to heat mode and energize staged, floating ormodulating heat outputs. In this manner, heat mode may beenabled by a sensor monitoring space or return air tempera-ture. Also, heat operation is based on setpoints and condi-tions of morning warm-up, occupied heat mode and nightsetback. Once per minute, the control determines whetherthe heat mode or cool mode is required. Minumum on andoff timer for heat and cool must be satisified before achangeover can occur.

OCCUPIED WARM-UP OPERATIONOccupied warm-up operation can occur when the con-

trol determines that a transition from unoccupied mode tooccupied mode has occurred. The occupied mode determi-nation can be made from several input sources. The unit isunoccupied unless one of the following is true:

• Time clock digital input is configured and active.• Internal TOD schedules indicate occupied and the

USE_INT_TOD programmable variable is true.• CNAP network has written occupied to the unit.• CNAP network has written that a VAV zone is calling

for unit operation.When the W7600 determines the building transition to

occupied, the warm-up control logic is enabled. A program-mable delay timer is started to delay the decision to go intoheat mode. This delay is intended to allow the supply fan toget air flow established before reading the warm-up controlsensor. The warm-up control uses the building space airtemperature or the return air temperature to control thebuilding heat. When the warm-up input temperature isbelow the occupied warm-up temperature setpoint, theVAV control is placed in the heat mode and the VAV BoxOpen output is turned on. The discharge air is controlled tothe discharge air heat setpoint. When the warm-up input temp-erature rises above the setpoint + HEAT_HYSTERESIS,the system changes over to the discharge air cooling modeand the VAV Box Open output is turned off.

PM7600BOPERATION

35 63-4309—2

NOTE: The W7620 VAV Box Controllers have their ownmethod of determining if morning warmup is required.The VAV Box Open Output does not have to be config-ured when using the W7620 VAV Box Controller.

A programmable variable (AUTO_CHANGEOVER)can be set to either allow heat mode only for morningwarm-up when the occupied mode changes or to allow heatmode anytime. In the later case, the control places thesystem into the heat mode whenever the input temperaturefalls below the warm-up setpoint and the system is in theoccupied mode.

NOTE: If the HEAT_MODE digital input is configured, it isthe sole determinator of the AHU heat/cool mode.

In the night setback mode, heating is provided based onan unoccupied setpoint. The system allows up to six stagesof heat with programmable minimum heat time delay be-tween stages from 0 to 63 minutes. Heating safeties andlimits include a heat fail input for alarm and a heat modeinput to enable or disable heat function.

OUTDOOR AIR PREHEATAn Outdoor Air Preheat control function is available to

control the preheating of outside air introduced into the airhandling system when the outside air temperature is low.Setpoint, Control Band, Analog Output and Digital Output,and Preheat Lockout are configurable.

ECONOMIZER OPERATIONThe economizer operation can be selected to use out-

door air or condenser water for free cooling depending onthe specific system design. The ECON_SELECT param-eter is used to configure the economizer operation for thispurpose.

0 = Disable economizer.1 = Use enthalpy high digital input.2 = Use condenser water temperature and setpoint.3 = Use difference between two analog input sensors.

(Enable when: sensor 1 < sensor 2—economizeroffset.)

If this variable is programmed to 1, the digital inputOD_ENT must be configured. If this variable is programmedto 2, the analog input CNDTMP must be configured. If thisvariable is programmed to 3, the two configuration vari-ables ECON_SENS1 and ECON_SENS1 andECON_SENS2 must be programmed.

The ECONO_TYPE Configuration Parameter is used toset up the system to use modulating or floating actuators forthe economizer.

Mechanical cooling can be locked out automatically, ifdesired, in both economizer options using theLOCKOUT_SENS parameter. It is important to configurethe parameters to complement each other; for example, ifthe outdoor air temperature is used for economizer opera-tion, this parameter should also be selected for mechanicalcooling lockout when mechanical cooling lockout is de-sired.

An optional method of economizer operation allows theuse of an external control to open the free cooling valve for

PM7600BOPERATION

the economizer. When this method is used, a bypass valveshould be installed around the free cooling coil; an endswitch installed on the free cooling valve; and the digitalinput for proof of free cooling (FRE_CL 159) must beconfigured. When free cooling is available, the free coolingvalve opens, making the end switch, allowing water to flowto the economizer and closing the bypass valve around theeconomizer coil.

If free cooling is operating but is not sufficient andmechanical cooling is required, the W7600 checks for theproof of free cooling digital input from the free coolingvalve end switch before the compressor is enabled. In thissituation, a time delay is programmed to allow the bypassvalve to open and the free cooling valve to close. If the freecooling valve is not open when mechanical cooling isrequired, the W7600 opens the bypass valve, allowingwater to flow to the condenser. See Fig. 3.

Fig. 3—Use of condensor water for econo-mizer cycle.

M4139

COOLINGTOWER

END SWITCH TO INDICATE "FREE-COOLING" IS AVAILABLE. CONNECT TO DIGITAL INPUT "FREE_COOL" (CTRL # 159)

BYPASSVALVE

CONDENSER

FREE COOLVALVE

FREE COOLINGCOIL

THE BYPASS VALVEIS CLOSED WHENFREE_COOL - "ON"

An Economizer override function is available on inputof an IAQ Digital Input Signal. If an IAQ Digital Inputsignal is received from an IAQ Sensor, indicating insuffi-cient ventilation, the Economizer Minimum position ischanged (usually increased) to a configurable % Openposition. This IAQ Economizer Minimum position isconfigrable from 0 to 100% Open.

SYSTEM RESET AND ALARM SILENCEA system switch input is selectable via hardware or

software to cycle the W7600 on and off. When cycled off,all digital outputs are in the off condition and analogoutputs cycle to the fully closed position. The only excep-tions are floating close and unload outputs, which areenergized to close valves and dampers. A system resetinput, also selectable via hardware or software, clears theVAV control algorithm and restarts the W7600. The W7600system safety input monitors normally closed input(s). Onsystem failure, the VAV system is de-energized until ser-vice has occurred and the W7600 is reset. The W7600system also provides an alarm silence function via integralmembrane touch key to silence the alarm output. When analarm occurs, the alarm output is silenced until the condi-tion is resolved, until a new alarm occurs, or until thesystem is reset.

The W7600/S7600 system must resolve alarm condi-tions. When an alarm occurs, the alarm output is turned on

63-4309—2 36

PM7600BOPERATION • INSTALLATION

and the alarm is scrolled on the S7600. At this point, thealarm is active and unacknowledged by the S7600. If thecondition that caused the alarm goes away (alarm is nolonger active), it is not scrolled by the S7600 but it is stillunacknowledged and the alarm output is still on. If thealarm is acknowledged via the S7600 Alarm Silence key orthe alarm silence digital input (clearing the unacknowl-edged alarm), the alarm output is turned off. If the alarm isacknowledged when the alarm condition is still active, thealarm output is turned off and the alarm message is on theS7600 acknowledged alarms list. The alarm output is notturned on again until either a new alarm occurs or the

original alarm condition goes away and then returns. Ac-tive alarms are scrolled by the S7600 regardless of whetheror not they were silenced. The S7600 alarm history may bereviewed under the review key menu. Any alarm can becleared after the system is repaired. The W7600 alarms canbe viewed on the CNAP network and alarms can be ac-knowledged and cleared by CNAP.

If a local user acknowledges an alarm through theS7600A, it is only acknowledged locally. If a remote useracknowledges an alarm through ZM7601/ZM7603 Soft-ware, it is only acknowledged remotely. These two ac-knowledgment processes are totally separate.

WHEN INSTALLING THIS PRODUCT1. Read these instructions carefully. Failure to follow

them could damage the product or cause a hazardous condi-tion.

2. Check the ratings given in the instructions and on theproduct to make sure that the product is suitable for userapplication.

3. The installer must be a trained, experienced service orinstallation technician.

4. After installation is complete, check system operationas provided in these instructions.

CAUTION1. Disconnect power supply before beginning in-

stallation to prevent electrical shock and/orequipment damage.

2. Before touching any electronic components,discharge any static from your body by touch-ing an earth ground point. Static charges pro-duce voltages high enough to damage elec-tronic components of the W7600.

3. Do not plug or unplug any EPROMs, modules,assemblies, relays, ribbon cables or other compo-nents with power applied to the W7600. Thepower must be off to prevent equipment damage.

Location of the PM7600EPROM

The PM7600B EPROM is located beneath the plasticcover of the W7600 Control Module. Installation requiresthat the cover be removed to expose the internal circuitboard. To remove the entire cover of the W7600 to exposethe circuit board, remove the screws on the back of theW7600 metal base plate and dislodge the cover from thecircuit board and base plate. The EPROM is located in thecenter of the circuit board (see Fig. 4).

Install the PM7600 EPROM as follows:1. Place the circuit breaker for the W7600 power trans-

former in the OFF position and wait 30 seconds.2. If the W7600 has a removable top cover, lift it off the

device and proceed to step 4. If the W7600 does not have aremovable top cover, proceed to step 3.

3. Remove the W7600 Control Module from the pack-age or its mounting. Lay the device face down on a flatworking surface. Remove the screws from the backing plateand remove the backing plate. Taking care not to disturb theelectronic components on the circuit board, remove thecover of the W7600 from the circuit board.

4. Discharge any static electricity by touching an earthground point.

5. If applicable, remove the existing PM7600 as shownin Fig. 5.

6. Inspect the EPROM pins and socket before installa-tion (see Figs. 6 and 7).

Fig. 4—W7600 Control Module with cover off.

7. Install the new PM7600 Program Module into thesocket on the W7600 circuit board. Make sure the EPROMorientation notch is aligned with the orientation notch on thesocket. Slowly push the EPROM into the socket (sometimesa slight rocking action can assist installation). Be very carefulnot to bend any EPROM pins when installing (see Fig. 8).

8. Visually inspect the installation (see Fig. 8). Be surethe EPROM orientation notch is matched with the orienta-

Installation

EPROM IS PLUGGED INTO SLOT U2. ORIENTATION NOTCH OF CHIP MUST MATCH UP WITH ORIENTATION NOTCH OF SLOT.

M9918

37 63-4309—2

Fig. 7—Inspect EPROM socket before EPROMinsertion.

tion notch on the EPROM socket. Be sure no pins are bentunder the EPROM.

CAUTIONEPROMs will be damaged if power is applied withEPROMs installed upside down. The EPROMmust be inserted into the socket so that the orien-tation notch on the EPROM is on the same end asthe orientation notch on the socket.

9. Reassemble the W7600.

Fig. 5—Removing EPROM from W7600 (ifapplicable).

PM7600BINSTALLATION

PUSH BACK SPRING WITH SMALL SCREWDRIVER

M4004

Fig. 8—Example of EPROM installation.

SOCKETNOTCH

EPROM

EPROMSOCKET

EPROMORIENTATIONNOTCH

EPROM

EPROMSOCKET

EPROM

EPROMSOCKET

ELECTRICALCONTACTLEVEL

END VIEW

OR

SIDE VIEW

EPROM

EPROMSOCKET

SOME SOCKETS GOOD,OTHERS NO CONNECTION.

EPROMSOCKET

4. EPROM INSTALLED BACKWARD – REMOVE EPROM, REINSTALL WITH ORIENTATION NOTCH ON EPROM MATCHING EPROM SOCKET.

3. EPROM NOT PUSHED TIGHTLY INTO SOCKET – PUSH EPROM INTO SOCKET.

2. PIN(S) BENT UNDER EPROM – REMOVE EPROM, STRAIGHTEN PIN(S), REINSTALL.

1. PIN(S) NOT INSTALLED INTO SOCKETS – REMOVE EPROM, STRAIGHTEN PIN(S), REINSTALL.

POOR INSTALLATION

GOOD INSTALLATION1. CORRECT EPROM IN CORRECT SOCKET

2. EPROM INSTALLED WITH ORIENTATION NOTCH ALIGNED WITH FACING SOCKET NOTCH.

3. ALL PINS ARE IN SOCKETS ON BOTH SIDES.

4. EPROM PUSHED TIGHTLY INTO SOCKET.

AFTER INSTALLING EACH EPROM, VISUALLY INSPECT FOR THEFOLLOWING CONDITIONS:

END VIEW

M4005B

}

STRAIGHTENBENT PINS

EPROMPINS BAD

EPROMPINS GOOD

INSPECT THE PM7600 EPROM BEFORE INSTALLATION

NOTE: TO ADJUST THE PINS OF AN EPROM, USE SMALL NEEDLENOSE PLIERS AND CORRECT TO MATCH OTHER PINS. M4003

Fig. 6—Inspect EPROM pins before installa-tion.

EPROM ORIENTATIONNOTCH MUST FACE UP

EPROMEXTRACTIONTOOL

LOCATION OFEPROM WITHINW7600

M4002

63-4309—2 38

PM7600BPROGRAMMING

ProgrammingW7600 CONTROL MODULE CONFIGURATIONVIA PERSONAL COMPUTER

This section provides limited discussion of the configu-ration of the W7600 Control Module after installing thePM7600B software for variable air volume applications.For more information, refer to the ZM7601/ZM7603 Con-figuration Tool Software Specification.

NOTE: The controller type selected must be NetworkableW7600 in the ZM7601 or ZM7603 software.

As noted, configuring the W7600 requires that theZM7601 or ZM7603 Configuration Tool Software be in-stalled on an IBM® PC-AT™ compatible PC (personalcomputer). Using this software, the input and output vari-ables previously listed can be configured to a W7600. Afterdownloading the configuration program to the W7600,allow power to remain on to the W7600 for at least 90seconds before disconnecting power.

After the W7600 and all source and destination points inthe site network are configured, the datasharing points tobe used in Q7640 Network Interface Unit functions can beconfigured in the Q7640 Network Interface Unit. For com-plete information on configuring datasharing points, seeConfiguring the Network Interface Unit in the ZM7601/ZM7603 Software User’s Guide, form 63-4272. The CNAPSystem Application Manual also provides information ondatasharing and network system integration.

DIGITAL INPUTSDigital inputs are chosen from the list of options and

defined to a specific digital input on the W7600 or W7601modules. It is then possible to specify whether the digitalinput is a normally open or normally closed point. ON =Input Active; OFF = Input Inactive. The physical state ofthe digital input contact, when the contact is active, isdetermined with the ZM7601 or ZM7603 ConfigurationTool Software. The S7600 displays ACTIVE or INAC-TIVE, depending on the state of the input and how it isconfigured. For example, a system safety input could beconfigured to be open during normal operation and closedwhen the system safety is active. In this case, with the inputON, the contact would be closed and the W7600 wouldinitiate the system safety sequence.

ANALOG INPUTSLike digital inputs, analog inputs are chosen and defined

in hardware. The specification process for analog inputsalso requires the following parameters:

• Volts, ohms or current.• Input low and high value (volts, ohms or current).• Input low and high reference points.• Input minimum and maximum out-of-range limits

(volts, ohms or current).• Input minimum and maximum engineering unit lim-

its.

DIGITAL OUTPUTSDigital outputs are chosen from the list of options and

defined to a specific digital output channel on the W7600 orW7601 modules. It is then possible to wire the digital outputas a normally open or normally closed point at the R7600Relay Module.

ANALOG OUTPUTSAnalog outputs are chosen and defined in hardware

which is also true for digital outputs. The specificationprocess for analog outputs also requires the following pa-rameters:

• Output low value (volts or mA).• Output high value (volts or mA).• Proportional or inverse operation.

REMOTE INPUTSRemote inputs are assigned control numbers just like the

inputs that are physically wired to the W7600. Remoteinputs are also configured in the ZM7601/ZM7603 Soft-ware. The remote input configuration screens appear afterthe physical input screens. The remote input screens indi-cate Remote Input Number beneath the Input Number onthe screen.

MONITORING THE W7600 VIA S7600The Network Compatible S7600A 2XXX is the only

Keyboard Display Module that can be used with Net-work Compatible W7600A-F Control Modules.

The S7600 connects to the W7600 with a 7-wire cable.The 7-wire cable uses two wires for 24 Vac power, one wirefor earth ground, and four wires to provide two-way com-munication between the W7600/W7601 and the S7600. Thescreens displayed on the S7600 are compatible with allNetwork Compatible models of the W7600/W7601 and thePM7600B. After the PM7600B EPROM is installed into theW7600 Control Module and the control system is properlyconfigured using the ZM7601 Configuration Tool Softwareand a PC, apply power to the W7600.

After applying power, the system takes five to thirtyseconds to complete a self-test and data loading process.This procedure ensures that all the W7600 system compo-nents are properly wired, configured and the internal cir-cuitry is operational.

After the self-check mode is completed, the S7600 dis-plays the run screen. This run screen is determined by thePM7600B program that is installed in the W7600. At thispoint, it is possible to begin the monitoring and program-ming process through the S7600. An illustration of thisprocess, using the variable air volume run screens, is shownat the end of this section.

S7600A KEYBOARDThe keyboard of the S7600A consists of 13 keys. Some

keys initiate programming while others allow movementthrough the program menus and data fields. PROGRAMinitiates the program mode. RUN and REVIEW initiate the

39 63-4309—2

while analog outputs can be forced to any desired position.Also, the second level allows the user to change programparameters.

Pressing PROGRAM initiates the program mode andturns on an amber light above this key. After the user hassuccessfully entered the access code, if non-zero, changescan be made to S7600A Keyboard Display Module param-eters.

When the user is in the PROGRAM mode, the time-of-day, control setpoints, time schedules and access codes canbe programmed. Special hidden screens can be accessedfrom the PROGRAM main menu screen by pressing simul-taneously the + and – keys. These hidden screens allow theuser to change the pressure and temperature gains. Anadditional hidden screen allows the user to clear the entireprogram memory. Tthe PROGRAM flowchart at the end ofthis section provides all of the PROGRAM screens.

Pressing PROGRAM while in the program mode (indi-cator light on) initiates an abort feature of the program,uploading W7600 memory and ignoring changes madesince the last save.

PROGRAMMING AND VIEWING THE SPECIALUSE OF SETPOINTS WITH S7600

When the Q7601 setpoint module is used with theW7600, the programmed setpoints must be 0°F or -18°Cfor temperature and 0 in. or 0 Pa for pressure. The zerosindicate a special use for the setpoint and the S7600 willindicate SPECIAL for the setpoints in these instances.

Programming the special use for temperature setpointswith the S7600 is accomplished by placing the cursor underthat setpoint and scrolling with the + or - key until theSPECIAL indication appears. To program pressure setpoints,the user must input 00.00 for the setpoint. After the userexits the screen with the PREVIOUS (∧) or NEXT (∨) key,the SPECIAL indication will be indicated the next time thescreen is displayed.

EXAMPLE: For temperatures, the Range = 0, 30-90.The S7600 display sequences SPECIAL,30-90.For pressures:Initially User S7600displayed changes to reformats to+10.00 +00.00 SPECIALSPECIAL +010.0 +10.00

PROGRAMMING EVENT SCHEDULESNOTE: If the USE_INT_TOD_SCHED Parameter was

programmed to NO, then programming schedules withthe S7600 are not allowed.

When in the program mode, the program display willappear.

The default position of the cursor is under theSETPOINTS selection. Using LEFT/RIGHT TAB (</>),move the cursor under the TOD selection and press NEXT(∨). Select SCHEDULES and press NEXT. Up to 32 eventschedules may be programmed.

run mode. Pressing BYPASS enters the bypass mode andallows the user to override the state of any output afterentering the access code (if non-zero). The keys that allowmovement through program menus and data fields are thedata change (PLUS (+), MINUS (–) and FAST) and menuNEXT (∨), PREVIOUS (∧) and TAB LEFT/RIGHT (</>)keys. ALARM SILENCE silences the audible alarm andacknowledges all alarms and CLEAR clears informationfrom the S7600A. CLEAR may also be used to eraseinformation from the W7600 database.

If more appears on the S7600A, more screens are avail-able by pressing NEXT (∨). Sometimes, more appears witha cursor prompt that indicates which TAB key may be usedto review or change additional data.

SYSTEM INITIALIZATION WITH S7600AAfter initial power-up in the test or normal run modes,

the SYSTEM INITIALIZATION display appears. This dis-play appears for at least three to five seconds while theS7600A attempts to contact the W7600.

THE S7600A KEYBOARD RUN DISPLAYThe S7600A Keyboard Display Module displays the

time (in either 12 or 24 hour format), the current date, andwhether a special day schedule is being observed. If thereare bypasses being observed observed, the * bypass indica-tor appears in the upper right hand corner on the display. Ifthere are any alarms, either acknowledged or unacknowl-edged, *ALARM* appears on the display.

DA_TMP +70.00 F MON 12.45A UNOCC *ALARM*PRESS +3.57 INW V_PRESS

At this point, most program and run keys are enabled,while the data change and menu keys are disabled. This willbe referred to as the Run Display.

During normal operation of the system, the S7600Acontinuously polls for alarms in the W7600. If an alarm isdetected, *ALARM* will be shown on the S7600A dis-play. If an alarm becomes inactive (and it is the only alarmbeing sensed), the message will disappear. If there areactive, unacknowledged alarms, they will be displayedalternately with the information shown in either the run(every two seconds) or review (every 10 seconds) selec-tions of the run mode.

If the ZM7601/ZM7603 Software is communicatingwith the W7600, the W7600 database may be blocked fromaccess by the S7600A. In this case, Communications inprogress…please wait will be displayed. If a request wasentered by the user of the S7600A and the database is in useby remote software, the S7600A will wait until that pro-cessing is complete to finish its transaction.

PROGRAMMING THE W7600 FROM THE S7600AKEYBOARD DISPLAY MODULE

The W7600 features two levels of user access. The firstlevel access allows the user to review program and setpointdata. The second level requires the user to enter a numericalaccess code before program changes or bypass functionscan be performed. Once the access code is entered, the usercan bypass digital outputs and force them ON or OFF,

PM7600BPROGRAMMING

63-4309—2 40

SCH# 03 OCC UNOCC OCC UNOCCmore 07:00A 09:00A 12:00P 04:00P

Event schedules 1 and 2 are default schedules for 24hour unoccupied and 24 hour occupied, respectively. Theseevent schedules may not be altered. To scroll through theevent schedules, press NEXT (∨). Scroll repeatedly throughevent schedules by pressing NEXT (∨). Press PREVIOUS(∧) to review progressively lower numbered event sched-ules and eventually go back to the program menu.

Event schedules 3 through 32 may be altered. PressNEXT (∨) to scroll to the event schedule to be altered. Thedefault position of the cursor will be on the first OCC orUNOCC display associated with the first event. The onlyexception is when the schedule is programmed as 24 hourOCC/UNOCC. Events not shown, but can be displayed bypressing PLUS/MINUS (+/–).

To toggle the first event from OCC to UNOCC orUNOCC to OCC, press PLUS/MINUS (+/–). If the OCC/UNOCC sequence is acceptable, press LEFT/RIGHT TAB(</>). The cursor will now be under the hours of the first (orlast) occ or unocc event. To advance the hours, press PLUS(+). To advance the time in increments of four hours, pressPLUS (+) and FAST simultaneously. Similarly, to decreasehours, use MINUS (–).

After the hours are changed, move the cursor to theminutes by pressing RIGHT TAB (>). To advance theminutes, press PLUS (+). To advance the time in incre-ments of five minutes, press PLUS (+) and FAST simulta-neously. To decrease minutes, press MINUS (–). Move thecursor to the next event to be altered or programmed.

If a time of 12:00 AM is entered in the first field, the on/off pattern is OCC-UNOCC-OCC-UNOCC and the re-maining fields are programmed as 12:00 AM, which isindicated by six hyphens (------) on the display, the sched-ule becomes 24 hour occupied. If a time of 12:00 AM isentered in the first field, the on/off pattern is UNOCC-OCC-UNOCC-OCC and the remaining fields are pro-grammed as 12:00 AM, which is indicated by six hyphens(------) on the display, the schedule becomes 24 hour unoc-cupied.

To restore an event schedule that is displayed as 24 HourOccupied or 24 Hour Unoccupied (except for event sched-ules one and two), press PLUS/MINUS (+/–) and thenormal OCC/UNOCC headings will be displayed.

PM7600BPROGRAMMING

PROGRAMMING SPECIAL SCHEDULESWhen the program mode is entered, the program display

will appear.The default position of the cursor is under the SETPOINT

selection. Using the LEFT/RIGHT TAB, move the cursorunder the TOD selection and press NEXT. Select HOLI-DAY and press NEXT. Up to 24 special schedule dates andday schedules can be programmed.

HOLIDAY 1 START DATE END DATE DAY SCH more JAN 01 1990 JAN 01 1990 SP2

The default date in the start date and end date field is thecurrent date. (When date is preceded by an asterisk, *, start

date is unprogrammed.) The default position of the cursoris on the month of the start date field. Using NEXT (∨) orPREVIOUS (∧), scroll through the special schedules al-ready programmed. NEXT (∨) will allow repeated scroll-ing through the special schedules. Pressing PREVIOUS (∧)allows scrolling through the special schedules and returnsto the program menu.

To change the Holiday schedules, select the Holidayschedule to change. Because the default position is at themonth of the start date field, change the month to the specialschedule starting month by pressing PLUS (+) to increaseand MINUS (–) to decrease the month. Press RIGHT TAB(>) to change the day to the special schedule starting day.Increase and decrease the day using PLUS/MINUS (+/–) asdescribed above. Press RIGHT TAB (>) to change the yearto the special schedule starting year. Increase and decreasethe year by using PLUS/MINUS (+/–) as described above.To advance the time in increments of five years, pressPLUS (+) and FAST simultaneously.

Move the cursor, using RIGHT TAB (>), to the end datefield. Following the instructions above, program the specialschedule ending date.

CLEAR may be used to delete the current special sched-ule. Using NEXT (∨) or PREVIOUS (∧), scroll through tothe special schedule to be deleted. Press CLEAR. TheS7600A will delete the current special schedule and displaythe next chronological special schedule.

After programming the end date, move the cursor underthe DAY SCH selection by pressing the RIGHT TAB (>).

Using PLUS/MINUS (+/–), select the day schedule thatthe holiday schedule dates will use.

The S7600A Keyboard Display Module uses a start datetracking algorithm to help users keep the end date on orafter the start date. The start date must occur on or beforethe end date.

Special schedule dates may not overlap each other. If theprogrammer attempts to enter overlapping dates, the dis-play below appears. The S7600A returns the programmerto the erroneous special schedule date.

NEW SCHEDULE OVERLAPS EXISTING SCHEDULE

After changes are made and NEXT/PREVIOUS (∧/∨)RUN, REVIEW, or BYPASS is pressed, the schedules areplaced in chronological order.

Continue the process of scrolling through special sched-ule numbers and altering data by following instructionsabove until all special schedule dates and day assignmentsare programmed.

PROGRAMMING THE CLOCKWhen the source of time is from the CNAP Network, the

time and dates will not be downloaded.After the program mode is entered, the program display

appears.The default position of the cursor is under the SETPOINT

selection. Using LEFT/RIGHT TAB (</>), move the cur-sor under the TOD selection and press NEXT (∨). Usingthe LEFT/RIGHT TAB (</>), move the cursor under theCLOCK selection and press NEXT (∨). DISPLAY CLOCK

41 63-4309—2

ASSIGNING EVENT SCHEDULES TO TIME-OF-DAY SCHEDULES

Select the TOD main menu screen and then the EQUIP-MENT screen using the tab keys. The default position ofthe cursor will be under the SCH# 1 and the Sunday (SUN)schedule. To select an event schedule to assign to a specificday schedule, use the PLUS (+) and MINUS (–) keys tochoose the desired event schedule.

Use NEXT (∨) to scroll to the next day of the week. UsePREVIOUS (∧) to scroll to the previous day of the weekand up to the main menu.

To exit the program mode, press any of the RUN keys;RUN, REVIEW or BYPASS. Going from the programmode to the run mode causes all changes made to bedownloaded and saved in the W7600. While in the runmode, the system components operate normally and datawithin the W7600 cannot be changed.

In the program or run modes, the general function datachange and menu keys may be used. The data change keysare used to scroll through data fields to select numeric,alphanumeric or date parameters. The PLUS/MINUS (+/–)keys are used to advance or reverse the scrolling process,while FAST is used to change data in greater increments orto activate a bypass.

Menu keys are used to move within levels of programmenus. NEXT (∨) is used to move vertically, deeper intothe menu hierarchy. PREVIOUS (∧) is used to move up andvertically through the menu hierarchy. LEFT/RIGHT TAB(</>) are used to move horizontally through the menuhierarchy.

NOTE: Whenever the program mode is entered by pressingPROGRAM, the database is uploaded to the S7600A.Whenever the run mode is entered by pressing RUN,REVIEW, or BYPASS, the database is downloaded tothe W7600.

PM7600BPROGRAMMING

ON RUN SCREEN display appears. Press NEXT andthe SET CLOCK display appears.

SET: TIME DATE FORMATmore 11:06A APR 01 1991 12 HR

The current time, date and time format, will appear. Thedefault position of the cursor is under hours in the timefield. To advance the hours,simultaneously press PLUS(+). To advance the time in increments of four hours, pressPLUS (+) and FAST. To decrease hours, use MINUS (–).After the hours are changed, move the cursor to the minutesin the time field. To advance the minutes, press PLUS (+).To advance the time in increments of five min-utes,simultaneously press PLUS (+) and FAST. Press MI-NUS (–) to decrease minutes.

After the minutes are changed, move the cursor to thedate field. To change the month, press PLUS (+) to increasethe month and MINUS (–) to decrease the month. Press theRIGHT TAB (>) to change the day. Increase and decreasethe day by using PLUS/MINUS (+/–) as described above.Press the RIGHT TAB (>) to change the year. Increase anddecrease the year by using the PLUS/MINUS (+/–) asdescribed above. To advance the time in increments of fiveyears (in the range 1988-2087), simultaneously press PLUS(+) and FAST.

Move the cursor to the FORMAT selection by pressingthe RIGHT TAB (>). While the cursor is under the formatfield, the time format selection may be toggled by pressingPLUS/MINUS (+/–). After selecting the desired format (12or 24 hours), press NEXT (∨).

The DAYLIGHT SAVING display appears. The cursorwill be positioned under the ENABLED field. Daylightsaving enabled may be toggled by using PLUS/MINUS (+/–). If YES is selected, daylight saving is enabled, whileNO disables the feature.

Move the cursor to the TIME_BASE selection. Togglethe use of a line frequency based clock (LINE) or the real-time clock card (RTC) using PLUS/MINUS (+/–). PressNEXT (∨).

DAYLIGHT SAVING ENABLED TIME_BASEmore YES LINE

The DAYLIGHT SAVING START display appears; thecursor will be positioned for daylight saving time. UsePLUS/MINUS (+/–) to scroll week numbers until the de-sired week number appears. Note that week 5 means thelast week of the month, depending on how many weeksthere are in the month. Press RIGHT TAB (>). The cursorwill be positioned under the day field. To change thestarting day of the week for daylight saving time to begin,use PLUS/MINUS (+/–) to scroll through the days until thedesired day of the selected week appears. Press RIGHTTAB (>). The cursor will be positioned under the monthfield. To change the month for daylight saving time tobegin, use PLUS/MINUS (+/–) to scroll through monthsuntil the desired month appears. Press NEXT (∨).

DAYLIGHT SAVING WEEK DAY MONTHmore START: 1 SUN APR

OPERATOR ENTRY ERROR MESSAGESEvent schedule times must be entered in ascending time

order. If an illegal sequence of times is entered, the errormessage that follows is displayed for approximately threeseconds. The user will be required to correct the erroneousschedule.

SCHEDULE EVENTS INCONSISTENT, CHANGESNOT WRITTEN

NOTE: Specific programming functions including configura-tion of points, equipment control parameters, and alarmparameters can only be changed through ZM7601 Configu-ration Tool or ZM7603 Remote Communication Software.

IMPORTANT: To prevent the user from inadvertentlyleaving the W7600 in the program mode, an automatictime-out feature is provided. If the controller is in theprogram mode and no keys were pressed for 15 minutes,the S7600A terminates the program mode and goes intothe run mode. While in the review selection, the fifteenminute time-out feature will not be observed. Data will beupdated from the W7600 to the S7600A every 10 seconds.The 15 minute time-out feature functions only in theprogram mode.

63-4309—2 42

REVIEWING W7600 PROGRAMTo review W7600 program information, press the RE-

VIEW key. With the cursor under PROGRAM, press theNEXT (∨) key. Move the cursor under SETPOINT, TODor UNITS and press the NEXT (∨) key to view the desiredinformation. The REVIEW flowchart at the end of thissection provides the screens that can be viewed under eachof the main selections.

REVIEWING W7600 STATUSTo review W7600 I/O status information, press the

REVIEW key. With the cursor under STATUS, press theNEXT (∨) key. Move the cursor under the desired input oroutput to be reviewed and scroll through the screens, indi-cating each output. If the last screen is being viewed and theNEXT (∨) key is pressed, the S7600 will repeat the list andwrap up to the first screen, as indicated in the REVIEWflowchart at the end of this section.

ANALOG INPUT STATUS INTERPRETATION• This display shows a positive or negative value with

engineering units +70.0°F (70°F).• An analog point configured as a digital point may

show the condition of the point as either ACTIVE orINACTIVE. Further interpretation of the configurationdata for this point is necessary because the active statecan represent an open or closed input.

• An analog input point that is short or open will reportthe condition by displaying SHORT or OPEN.

• An analog input point that has a nonzero value be-tween -.001 and +.001 will be displayed as UNDER.Values that are greater than +9999 or less than -9999will be displayed as OVER.

• If three asterisks (***) are displayed, the point isconfigured but is not currently available. The usualcause of this problem is the inability of the S7600AKeyboard Display Module to read point status fromthe W7600.

DIGITAL INPUT STATUS INTERPRETATION• This display shows the status of the point, either

ACTIVE or INACTIVE. Further interpretation of thepoint configuration data is necessary because the ac-tive state can represent an open or closed input.

• If three asterisks (***) are displayed, the point isconfigured but is not currently available. The usualcause of this problem is the inability of the S7600A toread point status from the W7600.

ANALOG OUTPUT STATUS INTERPRETATION• This display shows a value in a percentage range from

0% to 100%.• An analog output point configured as a digital output

point may show either ON (indicating the configured100% output) or OFF (indicating the configured 0%output).


PM7600BPROGRAMMING

DIGITAL OUTPUT STATUS INTERPRETATION• This display shows the digital output point as either

being ON or OFF.• If three asterisks (***) are displayed, the point is

configured but is not currently available. The usualcause of this problem is the inability of the S7600A toread point status from the W7600.

REMOTE ANALOG STATUS INTERPRETATION• This display shows a positive or negative value with

engineering units +70.0°F (70°F).• A remote analog point is configured as a remote digital

point as either ACTIVE or INACTIVE. Further inter-pretation of the configuration data for his point isnecessary because the active state can represent anopen or closed input.


REMOTE DIGITAL STATUS INTERPRETATION• This display shows the digital input point as either

being ACTIVE or INACTIVE. Further interpretation ofthe point configuration data is necessary because theactive state can represent an open or closed input.


REVIEWING W7600 REVISION NUMBERTo review the status of W7600 component revisions,

move the cursor under the REV # selection in the reviewmode display. After pressing REVIEW, the default posi-tion of the cursor is under the I/O selection. Using LEFT/RIGHT TAB (</>), move the cursor under the REV#selection and press NEXT (∨). The revision numbers of theS7600A Keyboard Display Module and the W7600G Con-trol Module appear. The existence of a W7601A,B attachedto the W7600 is also acknowledged in this display.

01.10W7600AH.01.10 ...................................................W7601: None 01.00S7600AH.01.00

ALARMS AND FAILURESThe W7600 detects two types of problems: alarms and

failures. Alarms are programmed by the user. Failures aremalfunctions that the W7600 automatically detects.

The W7600 maintains two alarm files: unacknowledgedand acknowledged. These files may contain both alarmsand failures. The unacknowledged alarm file contains alarmsand failures that have not been acknowledged by the userfrom the S7600A Keyboard Display Module. The acknowl-edged file contains alarms and failures that have beenacknowledged by the user.

The W7600 also provides an acknowledged alarm pointto notify the user of any existing unacknowledged alarms.If there are any unacknowledged alarms, this point is turnedon. This point must be a configured digital output forALARM.

43 63-4309—2

REVIEWING UNACKNOWLEDGED ALARMSAfter pressing REVIEW, the default position of the

cursor is under the PROGRAM selection. To review theunacknowledged alarms, use LEFT/RIGHT TAB (</>) tomove the cursor under UNACKD ALARMS in the reviewdisplay. Use NEXT (∨) to scroll through the list of unac-knowledged alarms in the reverse order of occurrence. Toacknowledge an alarm, press CLEAR. After an alarm isacknowledged, it is moved to the acknowledged alarm filewhere it remains until rolled out of the list (only 25 alarmsare maintained) or until the alarm is restored to a normalcondition. When an alarm is acknowledged, its alarm mes-sage no longer alternates with the run or review display.When all alarms are acknowledged, the unacknowledgedalarm point is turned off.

Q7600 OFF LINEmore UNACKD ALARM#01 OF 25 CLEAR=ACK

REVIEWING ACKNOWLEDGED ALARMSAfter pressing REVIEW, the default position of the

cursor is under the PROGRAM selection. To review ac-knowledged alarms, move the cursor under ACKD ALARMSusing the LEFT/RIGHT TAB (</>), and press NEXT (∨).If there are currently acknowledged alarms, they will ap-pear in the reverse order of occurrence. Because acknowl-edged alarms must return to normal before they can becleared from the system, this file may be only viewed. Anacknowledged alarm remains in W7600 memory until rolledout of the list (only 25 alarms are maintained) or restored tonormal condition.

Q7600 OFF LINEmore ACKD ALARM#01 OF 25

INITIATING A BYPASSPress BYPASS to initiate a bypass. Bypass initiation is

allowed without entering an access code if the access codeis 0000.

If an access code is required, the cursor is initiallypositioned under the left-justified digit. To change thecode, press PLUS/MINUS (+/–) to select the first digit.When a number is selected, press LEFT/RIGHT TAB (</>)to move to the next digit. Move to the left or right bypressing either the LEFT/RIGHT TAB (</>). When thebypass access code is selected, press NEXT (∨).

If incorrect, there is no action (the cursor stays in thesame position). Re-enter the bypass access code.

ENTER ACCESS CODEmore 0 0 0 0

To initiate a bypass, move the cursor under the digital oranalog indicator on the screen and tab down to the desiredoutput to be bypassed. Digital outputs can be bypassedfrom ON to OFF or from OFF to ON using the PLUS (+) orMINUS (–) keys. Analog outputs can be changed in incre-ments of one percent using the PLUS (+) or MINUS (–)key. Pressing FAST simultaneously with the PLUS (+) orMINUS (–) key changes the analog outputs in incrementsof five percent.

To activate a bypass, press the FAST key from anybypass screen. This downloads the bypass output states tothe W7600. When the W7600 is in bypass, the * bypassindicator is displayed in the upper right corner of the S7600display. After the bypass is activated, all changes made toany of the outputs are downloaded to the controller while itis still in bypass.

Pressing the RUN or PROGRAM keys causes any statechanges to be downloaded (if bypass was not activated),cancels bypass (if bypass was activated), and resets theW7600. Pressing the REVIEW key causes any state changeto be downloaded (if bypass was not activated) but does notdeactivate bypass (if the bypass mode was activated). Press-ing the CLEAR key from any bypass screen cancels bypassand resets the W7600. The previous bypass state that wasactivated is uploaded each time the BYPASS key is pressed.

REMOTE COMMUNICATIONWhile the ZM7601/ZM7603 Software is communicat-

ing with the W7600, the keyboard and the database of theW7600 are locked. During this process, the followingmessage is displayed:

COMMUNICATION IN PROGRESS…PLEASE WAIT

The same message appears for an extended length oftime if the communication system is attempting to recoverfrom an error.

In the background, the communication system attemptsto resolve the error. If the error cannot be resolved, thefollowing message will be displayed:

COMMUNICATIONS PROBLEMS…PLEASE CONSULT USER’S MANUAL

PM7600BPROGRAMMING

63-4309—2 44

NOTES

PM7600BPROGRAMMING

45 63-4309—2

PM7600B

PROGRAMMING

DA_TMP 70.00F MON 12;45A UNOCC 'ALARM"PRESS =3.57 INW S_VEL +35.89 FPM

Run Screen (Normal Operation)

Run Screen (Alarms in History)DA_TMP 70.00F MON 12;45A UNOCC 'ALARM"PRESS =3.57 INW V_PRES +35.89 FPM

RUN SCREEN

PROGRAM

Program Access Menu (Press Program)

IF ACCESSCODE IS0 0 0 0

IF ACCESS CODE IS NOT0 0 0 0ENTER NEW ACCESS CODE *

more 0 0 0 0


PROGRAM: SETPOINT TOD UNITS *more

TEMPERATURE PRESSURE RESET VELOCITY *more

DA COOL SETPOINT CONTROL BAND *more +70F +2F

DA HEAT SETPOINT CONTROL BAND *more +65F +4F

WARMUP SETPOINT *more +68F

SETBACK SETPOINT *more +60F

ECONOMIZER MIN POS OFFSET IAQ MIN POS *more 10% +8F 3-%

MA PREHEAT SETPT CRTL BAND OA LOCKOUT *more +55F +6F +5oF

MIXED AIR LIMITS HIGH LOW *end +90F +40F

SUPPLY STATIC PRES SETPT CTRL BAND *more +3.5INW +2.0INW

RETURN CFM % OF SUPPLY CRTL BAND *more 80.00% 6.00%

RETURN STATIC LIMITS HIGH LOW *end +3.0INW -1.0INW

COOL RESET: SETPOINT START END *more 60F +65F +70F

HEAT RESET: SETPOINT START END *end +100F +65F +70F

VELOCITY MINIMUM LIMIT TIME DELAY *more +180.5FPM +60.0SEC

LO TO HI SPEED FAN: SWITCH HYSTERESIS *more +300.0FPM +60.1FPM

HI TO LO SPEED FAN: TIME DELAY *end +60.0SEC

TOD: SCHEDULES EQUIPMENT HIOLDAYS CLOCK * more

SCH1 OCC UNOCC OCC UNOCCmore 24 HR UNOCCUPIED

SCH2 OCC UNOCC OCC UNOCCmore 24 HR OCCUPIED

SCH32 OCC UNOCC OCC UNOCCmore 11:20 A 11:50A 12:10 P 12:30P

32 POSSIBLESCHEDULES

EQU SCH#5 OCC UNOCC OCC UNOCC more SUN 10:20A 11:20A 12:20P 12:50P

EQU SCH#5 OCC UNOCC OCC UNOCC more MON 10:20A 11:20A 12:20P 12:50P

EQU SCH#5 OCC UNOCC OCC UNOCC more TUE 10:20A 11:20A 12:20P 12:50P

EQU SCH#5 OCC UNOCC OCC UNOCC more WED 10:20A 11:20A 12:20P 12:50P

EQU SCH#5 OCC UNOCC OCC UNOCC more THU 10:20A 11:20A 12:20P 12:50P

EQU SCH#5 OCC UNOCC OCC UNOCC more FRI 10:20A 11:20A 12:20P 12:50P

EQU SCH#5 OCC UNOCC OCC UNOCC more SAT 10:20A 11:20A 12:20P 12:50P

EQU SCH#5 OCC UNOCC OCC UNOCC more SP1 10:20A 11:20A 12:20P 12:50P




DISPLAY METRIC (S) UNITSend NO

PRESS CLEAR TO DELETE A HOLIDAY(IN PROGRAM MODE ONLY)

HOLIDAY START DATE END DATE DAY SCHmore MAY 25 1991 MAY 25 1991 SP4

HOLIDAY2 START DATE END DATE DAY SCHmore JULY 4 1991 JULY 4 1991 SP4

24 POSSIBLE HOLIDAYS

HOLIDAY START DATE END DATE DAY SCHmore NOV 23 1991 NOV 25 1991 SP2

DISPLAY CLOCK ON RUN SCREENmore YES

SET: TIME DATE FORMATmore 10:50A SEP 20 91 12 HR

DAYLIGHT SAVINGS ENABLE TIME BASEmore YES 50-60HZ

DAYLIGHT SAVINGS MONTH DOW WEEKmore START APR SUN 1

DAYLIGHT SAVINGS MONTH DOW WEEKmore END OCT SUN 5

Pressure Gains (Hidden/Special)

Temperature Gains (Hidden/Special)

SUPPLY PRESSURE: p_kd p_kp p_kimore +4.356 +.0035 +9.762

RETURN CFM: p_kp p_ki more +.0035 +9.762

TEMPERATURE: t_kd t_kp t_kimore +1.356 +.7035 +4.762

REHEAT: t_kp t_kimore +.7035 +4.762

CONFIRM: CLEAR PROGRAMMEMORY? + = YES ANY OTHER KEY = NO

M4142A

PM7600B

PM7600B PROGRAMMING SUMMARY

For programming and reviewing data, use the S7600 Keyboard Display Module. The S7600 displays English language wordson a 6" wide screen. These words are arranged in "menues." By pressing the keys located under the screen, selectionscan be made front the menues (similar to most computer software).These selections include reviewing load status and enteringprograms.

The 13 keys on the front of the S7600 allow the user to quicklyand easily move through menus, reviewing and modifyingprograms.

+ -When in Program Mode Main Menu, pressing and keys simultaneously will display the HIDDEN SCREEN

First, select the main function to be performed (PROGRAM, REVIEW, BYPASS, or RUN) by pressing the desired key. Tomodify data using the PROGRAM mode ot to BYPASS, asecurity access code must be entered - no security access isrequired for a REVIEW or RUN.

Notice the cursor line under the first line of a word in themenu. The position of this cursor indicates the user's choicefrom the menu.

To move the cursor to another choice, press the or key.

To move to the next menu, press the key.

To move to the previous menu, press the key.

To modify data, press or key.+ -

4 keys for SELECTING main functions

4 keys for MOVING from one menu to another

2 keys for MODIFYING data

3 keys for PERFORMING special functions

PROGRAM REVIEW BYPASS RUN

ALARMSILENCE CLEARFAST

+ -

63-4309—2 46

PM7600B

PROGRAMMING

REVIEW: PROGRAM STATUS OPERATION * REV ACKD ALARMS UNACKD ALARMS

REVIEW MENU(PRESS REVIEW KEY)

REVIEW

PROGRAM: SETPOINT TOD UNITS *more

TEMPERATURE PRESSURE RESET VELOCITY *more

DA COOL SETPOINT CONTROL BAND *more +70F +2F

DA HEAT SETPOINT CONTROL BAND *more +65F +4F

WARMUP SETPOINT *more +68F

SETBACK SETPOINT *more +60F

ECONOMIZER MIN POS OFFSET IAQ MIN POS *more 10% +8F 3-%

MA PREHEAT SETPT CRTL BAND OA LOCKOUT *more +55F +6F +5oF

MIXED AIR LIMITS HIGH LOW *end +90F +40F

SUPPLY STATIC PRES SETPT CTRL BAND *more +3.5INW +2.0INW

RETURN CFM % OF SUPPLY CRTL BAND *more 80.00% 6.00%

RETURN STATIC LIMITS HIGH LOW *end +3.0INW -1.0INW

COOL RESET: SETPOINT START END *more 60F +65F +70F

HEAT RESET: SETPOINT START END *end +100F +65F +70F

VELOCITY MINIMUM LIMIT TIME DELAY *more +180.5FPM +60.0SEC

LO TO HI SPEED FAN: SWITCH HYSTERESIS *more +300.0FPM +60.1FPM

HI TO LO SPEED FAN: TIME DELAY *end +60.0SEC

TOD: SCHEDULES EQUIPMENT HIOLDAYS CLOCK * more

SCH1 OCC UNOCC OCC UNOCCmore 24 HR UNOCCUPIED

SCH2 OCC UNOCC OCC UNOCCmore 24 HR OCCUPIED

SCH32 OCC UNOCC OCC UNOCCmore 11:20 A 11:50A 12:10 P 12:30P


EQU SCH#5 OCC UNOCC OCC UNOCC more SUN 10:20A 11:20A 12:20P 12:50P

EQU SCH#5 OCC UNOCC OCC UNOCC more MON 10:20A 11:20A 12:20P 12:50P

EQU SCH#5 OCC UNOCC OCC UNOCC more TUE 10:20A 11:20A 12:20P 12:50P

EQU SCH#5 OCC UNOCC OCC UNOCC more WED 10:20A 11:20A 12:20P 12:50P

EQU SCH#5 OCC UNOCC OCC UNOCC more THU 10:20A 11:20A 12:20P 12:50P

EQU SCH#5 OCC UNOCC OCC UNOCC more FRI 10:20A 11:20A 12:20P 12:50P

EQU SCH#5 OCC UNOCC OCC UNOCC more SAT 10:20A 11:20A 12:20P 12:50P





DISPLAY METRIC (S) UNITSend NO

HOLIDAY2 START DATE END DATE DAY SCHmore JULY 4 1991 JULY 4 1991 SP4

24 POSSIBLE HOLIDAYS

HOLIDAY START DATE END DATE DAY SCHmore NOV 23 1991 NOV 25 1991 SP2

DISPLAY CLOCK ON RUN SCREENmore YES

SET: TIME DATE FORMATmore 10:50A SEP 20 91 12 HR

DAYLIGHT SAVINGS ENABLE TIME BASEmore YES 50-60HZ

DAYLIGHT SAVINGS MONTH DOW WEEKmore START APR SUN 1

DAYLIGHT SAVINGS MONTH DOW WEEKmore END OCT SUN 5

M4140A

PM7600B

UP TO 25UNACKNOLEDGEDALARM MESSAGES

06.00W7600BB.01.10.........................................W7601: NONE 01.00576000A200


SERVICE MESSAGE:

Q7600 OFF LINEmore ACKD ALARM #1 OF 8

DIRTY FILTERmore ACKD ALARM #8 OF 8

HOLIDAY START DATE END DATE DAY SCHmore MAY 25 1991 MAY 25 1991 SP4

SERVICE MESSAGE

FAN MOTOR FAILUREmore UNACKD ALARM #1 OF 10 CLEAR = ACK

more UNACKD ALARM #10 OF 10 CLEAR = ACK

REVIEW I/O STATUS: AI DI AO DOmore RA RD

DIG IN# 1CL_FL 2 FREEZEmore INACTIVE ACTIVE

DIG IN# 3 FILTER 4 SMOKEmore ACTIVE INACTIVE

DIG IN# 5SYS_FL 6 RESETmore INACTIVE ACTIVE

DIG IN# 7SYS_SW 8 more INACTIVE

DIG IN# 9AL SIL 10 LP1more ACTIVE INACTIVE

DIG IN# 1LP2 12more INACTIVE

ANA IN# 1 DA_TMP 2 CNA_TMPmore +50F +41F

ANA IN# 3 SP_TMP 4 OD_TMPmore +78F +70F

ANA IN# 5 RA_TMP 6DAC_CBmore +70F +4F

ANA IN# 7 DAC_SP 8 PR_SPmore +50F +3.0IN

ANA IN# 9 PR_CB 10DAH_CBmore +1.1IN +4F

ANA IN# 11 MA_TMP 2 DAH_SPmore +60F +90F

DIG OUT# 1 FAN 2 more ON

DIG OUT# 3 COOL1 4 COOL2 more OFF ON

DIG OUT# 5 HEAT 1 6 HEAT2 more OFF ON

DIG OUT# 7 ALARM 8 more OFF

DIG OUT# 9LLSV1 10 more OFF

DIG OUT# 11 LLSV2 12 more ON

DIG OUT# 13 AIR_OK 14 more ON

DIG OUT# 15 COOL 2 16more ON

RD IN# 1 RESTOR_SHED 2 more ACTIVE

ANA OUT# 1 A_COOL 2 more 0% 0%

ANA OUT# 3 A_FAN 4 more 50%

ANA OUT# 5A_ECON 6 more 10%

RA IN# 1 OD_TMP 2 more +80F ZN_OCC 4

SYSTEM ECONOMIZER ENABLEDmore ON YES

ACTUAL SETPOINTS: COOL HEATmore +78.62 +65.50

AIRFLOW: SUPPLY RETURNmore +1000CFM +800CFM

MECH COOLING LOCKED OUT PREHEAT STATUSmore YES 80%

HEAT MORNING WARMUP NIGHT SETBACKend 100 NO YES

47 63-4309—2

PM7600B

BYPASS FUNCTION(PRESS BYPASS KEY)


BYPASS OUTPUTS: DIGITAL ANALOG CLEAR=CANCEL, FAST=ACTIVATE

DIG OUT# 1 FAN 2 more ON

DIG OUT# 3 COOL1 4 COOL2more OFF ON

DIG OUT# 5 HEAT1 6 HEAT2more OFF ON

DIG OUT# 7 8 ECN OKmore ON

DIG OUT# 9 10more

DIG OUT# 11 12more

DIG OUT# 13 14more

DIG OUT# 15 16more

DIG OUT# 17 18more

DIG OUT# 19 20more

DIG OUT# 31 32end

ANA OUT# 1 A_COOL 2 A_HEATmore 0% 0%

ANA OUT# 3 4more

ANA OUT# 5 6more

ANA OUT# 7 8more

BYPASS

M4141

ENTER NEW ACCESS CODE *more 0 0 0 0

IF ACCESS CODE IS 0 0 0 0

IF ACCESS CODE IS NOT 0 0 0 0

etc.

ANA OUT# 9 10more

ANA OUT# 11 12end

PM7600BPROGRAMMING

63-4309—2 48

Troubleshooting/Alarms

Checkout

PM7600BCHECKOUT • TROUBLESHOOTING/ALARMS

IMPORTANT: Before applying power to the W7600 Con-trol Module, the W7600 analog and digital inputs andoutputs may have to be configured using the procedureoutlined in the Programming section. Configuration isnecessary when the preprogrammed parameters of thesoftware are not acceptable for user application. Thisconfiguration process should be done before the W7600is installed and wired.

The checkout process has two tasks. First, it is necessaryto follow the instructions under Initial Checkout to ensurethat the W7600 system was installed and all points areoperational. Second, if problems or inconsistencies de-velop, run the Installer Test. (See the W7600 ControlModule Specification, form 63-4307.) This test may be runfor only one type of point such as analog inputs. It should bedone when problems are indicated in the initial checkout.

INITIAL CHECKOUTApply power after the W7600 has been configured to

accept the inputs and control the outputs of the W7600/W7601. Use the S7600 Keyboard Display Module andmenu maps at the end of the Programming section toreview the digital and analog input and output status of eachconnected load or input. To do this, follow these proce-dures:

1. Connect the S7600 to the W7600 Control Module (ifnot already connected as part of the W7600 system).

2. Perform the following tests:• Check analog input status.• Check the digital input status.• Force the digital outputs to energize.• Force the analog output from 0 to 100 percent by

using the analog output override function.• If any of the steps do not operate as expected,

proceed to the Troubleshooting section for furtherinstructions, or to the Installer Test. (See the W7600Control Module Specification, form 63-4307.)

This section provides step-by-step procedures to correctproblems that may occur with the W7600. The symptom isprovided selecting the appropriate troubleshooting proce-dure.

IMPORTANT: Before troubleshooting the W7600 EPROMinstallation system, the W7600 analog and digital inputsand outputs should be configured (using the ZM7601Configuration Tool Software and a PC) to meet theapplication requirements. This configuration processshould be done before the W7600 is installed and wired.The W7600 system will not work properly unless theconfiguration process is completed.

The alarm descriptions are divided into two sections,those related to the equipment being controlled and thoserelated to the W7600 itself.

NOTE: Alarm priority level 99 is the lowest prior-ity and will not generate an alarm in the con-troller or on the network for analog inputs. Thiseliminates multiple alarms on the network whendatasharing from a source point. All otheralarms with priority 99 will generate alarms inthe controller and on the network.

The list below includes the alarms that could be dis-played because of equipment or sensor problems. Thesealarms are self-explanatory and the remedy for each alarmis to check the equipment or sensor for correct operation.

AI #XX is openAI #XX is short

Low Air FlowDuct High Static PressureDischarge Air Temperature LowNo Air Flow—Fan FailurePower Failure

Condenser Flow FailureCompressor 1: High Pressure TripCompressor 2: High Pressure TripCompressor 3: High Pressure TripCompressor 4: High Pressure TripCompressor 1: FailedCompressor 2: FailedCompressor 3: FailedCompressor 4: FailedCompressor 1: Oil Pressure TripCompressor 2: Oil Pressure TripCompressor 3: Oil Pressure TripCompressor 4: Oil Pressure TripCompressor 1: Low Pressure TripCompressor 2: Low Pressure TripCompressor 3: Low Pressure TripCompressor 4: Low Pressure TripCompressor 1: Start FailureCompressor 2: Start FailureCompressor 3: Start FailureCompressor 4: Start Failure

Dirty FilterCondenser High Limit ExceededFreeze Stat ShutdownSystem FailureHeating System Failure

49 63-4309—2

Fan Motor FailureCompressor 1: Failed to Pump OutCompressor 2: Failed to Pump OutCompressor 3: Failed to Pump OutCompressor 4: Failed to Pump OutControl Lockout—Reset W7600Compressor 1: Locked Out—Reset W7600Compressor 2: Locked Out—Reset W7600Compressor 3: Locked Out—Reset W7600Compressor 4: Locked Out—Reset W7600Return Duct High Static PressureReturn Duct Low Static PressureReturn Fan Failure-No Air flowMixed Air Temperature HighMixed Air Temperature Low

An outline of W7600A-F Control Module troubleshoot-ing follows:

Troubleshooting BackgroundTroubleshooting Critical Device Failures

• ROM (Read-Only Memory) failure.• RAM (Random Access Memory) failure.

Troubleshooting Major Device Failures• RTC (Real-Time Clock) failure.• A/D calibration failure.• A/D (Analog/Digital) 50/60 Hz line failure.• W7601A,B required and not present.• Bad 50/60 Hz line.• Q7600G failure.• Q7600G off-line.• System clock bad.

Troubleshooting Minor Device Failures• Watchdog failure.• Checksum failures.

— AI (Analog Input) configuration file lost.— DI (Digital Input) configuration file lost.— AO (Analog Output) configuration file lost.— DO (Digital Output) configuration file lost.— RA (Remote Analog) configuration file lost.— RD (Remote Digital) configuration file lost.— PD (Pseudo Digital) configuration file lost.— PA (Pseudo Analog) configuration file lost.— Day Schedule assignments lost.— Global/Remote point configuration file lost.— Clock parameters lost.— Control number configuration file lost.— TOD (Time-Of-Day) event schedule parameters

lost.— Special schedules lost.— Analog alarm program lost.— Digital alarm program lost.— Access code lost.— System alarm priority configuration file lost.— System setpoint configuration file lost.— Application model configuration lost.

TROUBLESHOOTING BACKGROUNDWhile the W7600 is in the run mode, internal circuitry is

checked constantly. A failure causes a specific devicefailure alarm to be set. The user can configure the alarmpriority of device failures through the ZM7601/ZM7603Software.

All alarms are reported to the CNAP communicationsnetwork. The user can configure the Q7640 Network Inter-face Unit through the ZM7601/ZM7603 software to reportalarms to a remote personal computer. The user may ac-knowledge alarms locally using the S7600A KeyboardDisplay Module and also remotely using the ZM7601/ZM7603 Software. If a local user acknowledges an alarmthrough the S7600A, it is only acknowledged locally. If aremote user acknowledges an alarm through ZM7601/ZM7603 Software, it is only acknowledged remotely. Thesetwo acknowledgment processes are totally separate.

During normal operation, the LED (Light Emitting Di-ode) on the W7600A-F base unit blinks at a one Hertz rate,which is equivalent to one on and off blink per second. If aminor or major failure occurs, the LED will blink at a rate2.5 times faster than the normal blinking mode. This isequivalent to 25 on and off blinks in a 10-second interval. Ifthe W7600A-F ROM fails, the LED will be on for aboutfour seconds and go off for about one second, with thiscycle repeating until the problem is corrected. If theW7600A-F RAM fails, the LED will be on for about onesecond and blip off for about one tenth of a second, with thiscycle repeating until the problem is corrected.

TROUBLESHOOTING CRITICAL DEVICEFAILURES

Critical device failures typically result in the temporaryor permanent disability of the W7600A-F Control Module,requiring replacement of the module.

Because of the nature of the failure, it is not possible tolog the event in the Q7640 Network Interface Unit alarmfile, the W7600A-F alarm file, or to display a message onthe S7600A.

Failure ROM (Read-Only Memory)failure.

Symptoms W7600A-F Control Module LED offfor one second and on for four sec-onds.

Cause ROM checksum test failed in basefirmware.

W7600A-F Retest checksum to verify failure.Action Shut down.Remedies • Turn off and reapply power to the

device and observe the result.• Remove EPROM.• Examine EPROM for bent pins.• Ensure EPROM is for W7600 ap-

plication.• Remove all accessories including

the W7601A,B; Q7600G.• Remove all I/O connections.• Repeat the process. If these efforts

fail to correct the problem, replacethe W7600A-F Control Module.

PM7600BTROUBLESHOOTING/ALARMS

63-4309—2 50

Failure RAM (Read and WriteMemory) failure.

Symptoms W7600A-F Control Module LEDon for one second and off for a blip(one-tenth of a second).

Cause RAM failed read and write test.W7600A-F Action Retest read and write memory to

verify failure. Shut down.Remedies The problem is either in the 8K

static RAM or in the 8K batterybacked RAM on the real-time clockstandup board.• Turn off and reapply power to

the device and observe the re-sult. Repeat.

• Remove all accessories includ-ing the W7601A,B; Q7600G.

• Remove all I/O connections.• If these efforts fail to correct the

problem, replace the W7600A-FControl Module.

TROUBLESHOOTING MAJOR DEVICEFAILURES

Major device failures result in the temporary or perma-nent disability of the W7600A-F Control Module algo-rithms and network operations. These failures rarely dis-able the entire operation of the W7600 and are indicated bythe W7600A-F blinking at a rate of 25 cycles in 10 seconds.

The ALARM banner is also displayed on the S7600A.Encountering major device failures may indicate that

the W7600A-F Control Module should be replaced. It mayalso indicate that the W7600A-F accessory components arecausing the failure or alarm condition.

A list of all possible major device failures, symptoms,causes, and the action required to remedy the failure fol-lows.

Failure RTC (Real-Time Clock)failure.

Symptoms W7600A-F Control Module LEDblinks on and off 25 times in 10seconds. RTC Failure displayed onthe S7600A.

Cause The real-time clock card has failed.W7600A-F Action W7600 retests the clock. If the real

time clock card is the source of theclock, TOD goes to occupied/onstate.

Remedies • Ensure that 20-30 Vac is beingsupplied to the W7600A-F.

• Short term solution: ReconfigureW7600A-F using the ZM7601/ZM7603 Software to use linefrequency for the clock base.

• Replace W7600.

Failure A/D calibration failure.Symptoms • W7600A-F Control Module

LED is blinking at a rate of 25 onand off blinks per 10 second pe-riod.

• A/D Calib Failure displayed onthe S7600A.

Cause Analog to digital converter testfailed.

W7600A-F Action All W7600 applications that rely onanalog inputs will be disabled. Out-puts will revert to their normallywired position.

Remedies • Check to ensure that input con-nections are wired correctly andthe connectors are not offset byone pin when plugged toW7600A-F connectors.

• Power down device and removeW7601A,B. Reapply power andobserve condition. If the prob-lem is corrected, replace theW7601A,B Expansion Module.

• If this problem is not corrected,turn off power to the device, re-move all I/O connections (in-cluding S7600A), and then reap-ply power. Again, check to en-sure that input connections arewired correctly and the connec-tors were not offset by one pinwhen plugged to W7600A-Fconnectors.

• If problem persists, power downdevice and remove Q7600GCommunication Module. Reap-ply power and observe condi-tion. If the problem is corrected,replace the Q7600G Communi-cation Module.

• If problem persists, power downdevice, reapply power, and ob-serve operating condition. Re-peat process. If this process fails,replace W7600A-F.


51 63-4309—2

Failure W7601A,B required and notpresent.

Symptoms W7600A-F Control Module LEDblinks on and off 25 times in 10seconds.W7601A,B Required and notPresent displayed on the S7600A.

Cause User has configured the applica-tion to use a W7601A,B Expan-sion Module and the device is notconnected to the W7600A-F.

W7600A-F Action Analog inputs become not avail-able, thus disabling algorithmsthat use analog inputs. Missingdigital inputs and digital and ana-log outputs cannot be used byPM7600 algorithms.

Remedies • If an Expansion Module is notconnected, the user must re-enter the configuration for thesystem using the ZM7601/ZM7603 Software and down-load that configuration to theW7600A-F base module.

• If an Expansion Module is con-nected, turn off power to theW7600A-F and carefullycheck connection betweenW7600A-F, Q7600G and Ex-pansion Module. Tighten con-nection and reapply power.Observe results.

• Turn off power to theW7600A-F, remove theQ7600G, and install the ex-pansion module directly ontothe W7600A-F. Reapplypower. If the failure is gone,replace the Q7600; otherwise,try a known good expansionmodule. If the failure is cor-rected, replace W7601A,B. Ifnot, replace base.

Failure A/D 50/60 Hz line failure.Symptoms • W7600A-F Control Module

LED is blinking at a rate of 25 onand off blinks per 10 second pe-riod.

• Bad 50/60 Hz line or hardwaredisplayed on the S7600A.

Cause Analog to digital converter testfailed.

W7600A-F Action All the W7600 applications thatrely on analog inputs will be dis-abled. Outputs will fail to their nor-mally wired position.

Remedies • Check to ensure that input con-nections are wired correctly andconnectors are not offset by onepin when plugged to W7600A-Fconnectors.

• Power down device and removeW7601A,B. Reapply power andobserve condition. If the prob-lem is corrected, replace theW7601A,B Expansion Module.

• If this problem is not corrected,turn off power to the device,remove all I/O connections (in-cluding S7600A), and then re-apply power. Again, check toensure that input connectionsare wired correctly and the con-nectors were not offset by onepin when plugged to W7600A-Fconnectors.

• If problem still persists, powerdown device and removeQ7600G Communication Mod-ule. Reapply power and observecondition. If the problem is cor-rected, replace the Q7600GCommunication Module.

• If problem still persists, powerdown device, reapply power,and observe operating condition.Repeat process. If this processfails, replace W7600A-F.


63-4309—2 52

Failure Bad 50/60 Hz line.

Symptoms • W7600A-F LED blinks at 25cycles in 10 seconds.

• Bad 50/60 Line or Hardwarefailure message displayed onthe S7600A.

Cause The 50/60 Hz is too fast, too slow or too noisy.

W7600A-F Action The W7600 retests the line fre-quency. If the line frequency isthe source of the clock, TOD goesto occupied/on state.

Remedies Short-term solution:• Reconfigure W7600A-F using

the ZM7601/ZM7603 Soft-ware or from the S7600A Key-board Display Module to usethe real-time clock card for theclock base.

• Reroute 24 Vac supply toW7600A-F.

• Ensure 20-30 Vac is being sup-plied to the W7600A-F.

• If the problem is not corrected,replace the W7600A-F.

Failure Q7600 off-line.Symptoms W7600A-F LED is blinking at a

rate of 25 on and off blinks per 10second period. Q7600 Down-NoCommunications displayed on theS7600A.

Cause Q7600G Communication Mod-ule is not functioning.

W7600A-F Action W7600A-F continues to operatenormally. No network communi-cations are possible.

Remedies • Power down device, reapplypower, and observe operatingcondition. Repeat process.

• Check CNAP network for wir-ing opens and shorts.

• Check Q7600G for proper ad-dress settings.

• Turn off power to theW7600A-F. Replace theQ7600G with a known, goodQ7600G. Reapply power andobserve results. If the problemis corrected, replace theQ7600G.


Failure System clock bad.Symptoms • W7600A-F LED is blinking

at a rate of 25 on and off blinksper 10 second period.

• System Clock Bad displayedon the S7600A.

Cause The selected time base (line fre-quency or clock card) has failed.

W7600A-F Action Clock circuit is retested. Time-of-day program outputs go to oc-cupied setpoint ON conditions.Historical data logging is sus-pended. All digital start/stop out-puts become de-energized andW7600A-F control is suspended.

Remedies • Power down W7600A-F. Re-apply power and observe con-dition.

• Replace W7600.Using line synchronized 50/60 Hzclock:• Ensure that 20-30 Vac is ap-

plied to the W7600A-F.• Power down W7600A-F. Re-

apply power, reset the clockthrough the S7600A KeyboardDisplay Module or through theZM7601/ZM7603 Softwareand observe the condition. Ifthe problem persists, replacethe W7600A-F.

Failure Q7600 failure.Symptoms • W7600A-F LED is blinking


• Q7600G Hardware Failuredisplayed on the S7600A.

Cause Q7600G has failed.W7600A-F Action W7600A-F continues to operate

normally. No network communi-cations are possible.

Remedies • Power down device, reapplypower, and observe operatingcondition. Repeat process.

• Check CNAP network for wir-ing opens and shorts.

• Check Q7600G for proper ad-dress settings.

• Turn off power to theW7600A-F. Replace theQ7600G with a known, goodQ7600G. Reapply power andobserve results. If the problemis corrected, replace theQ7600G.



53 63-4309—2


TROUBLESHOOTING MINOR DEVICE FAILURESMinor Device Failures result in the partial, temporary,

occasionally permanent disability of the W7600A-F algo-rithms. These failures rarely disable the entire operation ofthe W7600 and are indicated by the W7600A-F LEDblinking at a rate of 25 on and off blinks per 10 secondinterval.

These failures and alarms are logged in the NIU alarmfile. The *ALARM* banner is also displayed on the S7600A.

Encountering minor device failures may indicate thatthe W7600A-F should be reprogrammed, or data filesdownloaded, through the ZM7601/ZM7603 Software.

Following are all possible minor device failures, pre-scribed symptoms, and required action:

Failure Watchdog FailureSymptoms • W7600A-F LED is blinking


• Watchdog Hardware Failuredisplayed on the S7600A.

Cause Watchdog circuit cannot confirmW7600A-F firmware operation.

W7600A-F Action W7600A-F continues to operatenormally.

Remedies Power down device, reapplypower, and observe operating con-dition. Repeat process if desired.If this process fails, replaceW7600A-F Control Module.

Checksum FailuresA checksum is a number that is calculated by adding

together numerical representations of specific databaseitems. This technique is similar to one used in the bankingindustry to make sure that bank proof operators or proofmachines have correctly recorded banking transactions.The W7600A-F continuously performs a checksum cal-culation to guarantee the integrity of the data in the W7600A-Fdatabase.

The W7600 database has been divided into 28 checksumgroups. A failure in one group may prevent operation of theW7600A-F programs associated with that data, but otherW7600A-F operations will proceed normally.

There are three types of files—CONFIGURATION,PARAMETER and STATUS.

CONFIGURATION files are critical to the control ofthe W7600 System. Configuration files contain informa-tion about digital and analog physical and remote pointidentities. If a user changes information in one of thesefiles, the W7600 System does a controlled reset so that thecontroller can begin with the new configuration informa-tion.

NOTE: Evidence of download and controlled reset is that thecontroller goes off-line for several seconds while the datais downloaded to the W7600A-F from the computer.

NOTE: Some W7600A-F file errors can affect the perfor-mance of the W7600 System. If file integrity is suspected,the ZM7601/ZM7603 Software must be used toredownload affected configuration files. Refer to form63-4272 for instructions.

PARAMETER files contain information about the char-acteristics of control. These files include clock information,set points and control information, time schedule informa-tion, alarm information and access codes. The user maychange this information through the ZM7601/ZM7603 Soft-ware without causing the W7600A-F to go through acontrolled reset. In other words, the information may bechanged while the W7600A-F is operating.

STATUS files contain snapshot information of the cur-rent status of the W7600A-F. This information is availableon demand while the user is connected to the W7600A-FControl Module through the ZM7601/ZM7603 Softwareor from the S7600A review displays.

The configuration and parameter files that experiencechecksum errors will be reset to their default values. Statusfiles are not checksummed as they are continuously up-dated. The S7600B will display *ALARM* in the upperright corner.

Troubleshooting information for all possible checksumfailures as follows:

Failure AI (Analog Input) configuration file lost.

Symptoms Analog Input Config Has BeenLost displayed on the S7600A.

Cause Checksum error in analog inputconfiguration database.W7600A-F continues to operatenormally except for algorithmsthat use analog inputs. These al-gorithms are disabled.

Remedies Reconfigure all analog inputs us-ing existing archived databasefrom ZM7601/ZM7603 Soft-ware. File group in ZM7601/ZM7603 Software to downloadto W7600A-F is All Files or theselected independent file AnalogInput Configuration.

Failure DI (Digital Input) configurationfile lost.

Symptoms Digital Input Config Has BeenLost displayed on the S7600A.

Cause Checksum error in digital inputconfiguration database.W7600A-F continues to operatenormally, except for algorithmsthat use digital inputs. These al-gorithms are disabled.

Remedies Reconfigure all digital inputs us-ing existing archived databasefrom ZM7601/ZM7603 Soft-ware. File group in ZM7601/ZM7603 Software to downloadto W7600A-F is All Files or theselected independent file DigitalInput Configuration.

W7600 A-F does acontrol lockout


63-4309—2 54

Failure RA (Remote Analog) configu-ration file lost.

Symptoms Remote Analog Config Has BeenLost displayed on the S7600A.

Cause Checksum error in remote analogconfiguration database.W7600A-F continues to operatenormally, except for algorithmsthat use remote analogs. Remoteanalog points lose their configura-tion parameters, disabling thesealgorithms.

Remedies Reconfigure all remote analogsusing existing archived databasefrom ZM7601/ZM7603 Soft-ware. File group in ZM7601/ZM7603 Software to downloadW7600A-F is All Files or the se-lected independent file RemoteAnalog Configuration.

Failure AO (Analog Output) configu-ration file lost.

Symptoms Analog Output Config Has BeenLost on the S7600A display.

Cause Checksum error in analog outputconfiguration database.W7600A-F continues to operatenormally except for algorithmsthat use analog outputs. The ana-log output are driven to 0 mA.

Remedies Reconfigure all outputs using ex-isting archived database fromZM7601/ZM7603 Software. Filegroup in ZM7601/ZM7603 Soft-ware to download W7600A-F isAll Files or the selected indepen-dent file Analog Output Configu-ration.

Failure DO (Digital Output) configu-ration file lost.

Symptoms Digital Output Config Has BeenLost displayed on the S7600A.

Cause Checksum error in digital outputconfiguration database.W7600A-F continues to operatenormally except for algorithmsthat use digital outputs. Digitaloutputs are driven to the de-ener-gized position.

Remedies Reconfigure all digital outputsusing existing archived databasefrom ZM7601/ZM7603 Soft-ware. File group in ZM7601/ZM7603 Software to downloadW7600A-F is All Files or the se-lected independent file DigitalOutput Configuration.

Failure RD (Remote Digital) configu-ration file lost.

Symptoms Remote Digital Config Has BeenLost displayed on the S7600A.

Cause Checksum error in remote digitalconfiguration database.W7600A-F continues to operatenormally, except for algorithmsthat use remote digitals. Remotedigital points lose their configura-tion parameters, disabling thesealgorithms.

Remedies Reconfigure all remote digitalsusing existing archived databasefrom ZM7601/ZM7603 Soft-ware. File group in ZM7601/ZM7603 Software to downloadW7600A-F is All Files or the se-lected independent file RemoteDigital Configuration.

Failure PD (Pseudo Digital) configura-tion file lost.

Symptoms Pseudo Digital Config Has BeenLost displayed on the S7600A.

Cause Checksum error in pseudo digitalconfiguration database.W7600A-F continues to operatenormally, except for algorithmsthat use pseudo digital points. PDis used for datasharing the TODON/OFF status.

Remedies Reconfigure pseudo digital pointsutilizing archived database fromZM7601/ZM7603 Software. Filegroup in ZM7601/ZM7603 Soft-ware to download W7600A-F isAll Files or the selected indepen-dent file Pseudo Digital Configu-ration.

Failure PA (Pseudo Analog) configura-tion file lost.

Symptoms Pseudo Analog config Has BeenLost displayed on the S7600A.

Cause Checksum error in pseudo analogconfiguration database.W7600A-F continues to operatenormally, except for algorithmsthat use pseudo analog points. Thepseudo analog points are used forsetpoint changes from the S7600AKeyboard Display Module.

Remedies Reconfigure pseudo analogs uti-lizing archived database fromZM7601/ZM7603 Software. Filegroup in ZM7601/ZM7603 Soft-ware to download W7600A-F isAll Files or the selected indepen-dent file Pseudo Analog Configu-ration.








55 63-4309—2

Failure Control number configurationfile lost.

Symptoms Control Number Config Has BeenLost displayed on the S7600A.

Cause Checksum error in control num-ber configuration database.W7600A-F control functions be-come disabled. Outputs are drivento the de-energized position (digi-tal and analog as digital outputs)or to the minimum, 0% position(analog outputs).

Remedies Reconfigure all control algorithmsusing existing archived databasefrom ZM7601/ZM7603 Soft-ware. File group in ZM7601/ZM7603 Software to downloadW7600A-F is All Files or the se-lected independent file ControlNumber configuration.


Failure Day Schedules assignments lostSymptons Day Schedules Assignments Lost

displayed on S7600A.Cause Checksum error in parameter da-

tabase.Remedy Reconfigure TOD schedules of

controller using ZM7601/ZM7603 Software. DownloadSchedules Files to W7600.

Failure Global/remote point map con-figuration file lost.

Symptoms Global Point Map Has Been Lostdisplayed on the S7600A.

Cause Checksum error in global pointconfiguration database.W7600A-F continues to operatenormally, except for algorithmsthat use the configured globalpoints. The global points lose theirconfiguration parameters, dis-abling the algorithms that usethese points.

Remedies Reconfigure global points usingexisting archived database fromZM7601/ZM7603 Software. Filegroup in ZM7601/ZM7603 Soft-ware to download W7600A-F isAll Files or the selected indepen-dent file Global Pt. Map Configu-ration.

Failure Clock parameters lost.Symptoms Clock Parameters Have Been Lost

displayed on the S7600A.Cause Checksum error in clock param-

eters database.W7600A-F Action Clock parameters are set to their

default values. Operation contin-ues with the time based on a 12hour, 50/60 Hz line and no day-light saving time changeover.

Remedies Download clock parameters (in-dicated Schedules in ZM7601/ZM7603 Software) using exist-ing, archived database.



Failure Event schedule parameters lost.Symptoms Event Schedules Have Been Lost

displayed on the S7600A.Cause Checksum error in events sched-

ule parameters database.W7600A-F Action W7600A-F control functions con-

tinue normally but programs arerendered partially inoperative.Digital W7600 outputs associatedwith this program are driven totheir occupied position, with nocapability for bypass. Programscontrol to occupied setpoints withno bypass capability.

Remedies Reconfigure all TOD Scheduleprograms using existing archiveddatabase from ZM7601/ZM7603software. File group in ZM7601/ZM7603 Software to downloadto W7600A-F is Schedules.

63-4309—2 56

Failure Special schedule parameterslost.

Symptoms Special (Holiday) Schedules HaveBeen Lost displayed on theS7600A.

Cause Checksum error in special sched-ules parameter database.

W7600A-F Action W7600A-F control functions con-tinue normally but special sched-ules are rendered inoperative.

Remedies Reconfigure all special schedulesusing existing archived databasefrom ZM7601/ZM7603 software.File group in ZM7601/ZM7603Software to download toW7600A-F is Schedules.

Failure Access code lost.Symptoms Access Codes Have Been Lost

displayed on the S7600A.Cause Checksum error in S7600A Key-

board Display Module accesscode configuration database.

W7600A-F Action W7600A-F control functions con-tinue normally and bypass andprogram access codes are set to0000.

Remedies Reconfigure access codes usingexisting archived database fromZM7601/ZM7603 Software. Filegroup in ZM7601/ZM7603 Soft-ware to download to W7600A-Fis Config.

Failure System alarm priority configu-ration file lost.

Symptoms Alarm Priority Config Has BeenLost displayed on the S7600A.

Cause Checksum error in system alarmpriority parameter database.W7600A-F control functions con-tinue normally. All system alarmsare sent onto the CNAP networkas priority 90.

Remedies Reconfigure access codes usingexisting archived database fromZM7601/ZM7603 Software. Filegroup in ZM7601/ZM7603 Soft-ware to download W7600A-F isAll Files or the selected indepen-dent file Alarm Priority Configu-ration.

Failure System setpoint configurationfile lost.

Symptoms Setpoint File (FP) Lost, SetpointFile (B) Lost or Setpoint File(SW): Lost displayed on S7600A.

Cause Checksum error in system setpointparameter database.

W7600A-F Action W7600A-F control functions con-tinue based on default setopintsin the base control algorithm (ifavailable).

Remedies Reconfigure all setpoints in theoriginal database using ZM7601/ZM7603 Software. File group todownload to W7600 is Setpoints.

Failure Application model configura-tion lost.

Symptoms Application Model Config Lostdisplayed on S7600A.

Cause Checksum error in parameter da-tabase.

Remedy Reconfigure controller or copysample of controller usingZM7601/ZM7603 Software.Download All Files to W7600.

Home and Building Control Home and Building Control Helping You Control Your WorldHoneywell Inc. Honeywell Limited—Honeywell Limitée1985 Douglas Drive North 740 Ellesmere RoadGolden Valley, Minnesota 55422 Scarborough, Ontario

M1P 2V9Printed in U.S.A.

QUALITY IS KEY



Documents

Network Compatible PM7600B Variable Air Volume …...1 63-4309—2 The PM7600B Program Module allows the W7600 System to control discharge air tempera-ture and static pressure in variable