170 0025

Installation and Operation Handbook Contents

HA026696 Issue 1. Jul-99 Applies to 2208e and 2204e Controller software versions 3.03 i

MODELS 2208e and 2204eTEMPERATURE CONTROLLERS

INSTALLATION AND OPERATION HANDBOOK

Contents Page

Chapter 1 OPERATION ............................................................. 1-1

Chapter 2 INSTALLATION ........................................................... 2-1

Chapter 3 ACCESS LEVELS ...................................................... 3-1

Chapter 4 TUNING ..................................................................... 4-1

Chapter 5 CONFIGURATION ...................................................... 5-1

Chapter 6 USER CALIBRATION ................................................. 6-1

Chapter 7 ALARM CONFIGURATION ......................................... 7-1

Appendix A UNDERSTANDING THE ORDERING CODE ............. A-1

Appendix B SAFETY & EMC INFORMATION ............................ B-1

TECHNICAL SPECIFICATION ............................ B-6

Appendix C ADDRESS ............................ C-1

Appendix D VALVE POSITIONER ............................ D-1

Appendix E LOAD CURRENT MONITORING E-1

Appendix F RETRANSMISSION F-1

This product is covered by one or more of the following US Patents:5,484,206 and 5,793,754; Additional patents pending.

PDSIO is a registered trademark of Eurotherm.INSTANT ACCURACY, SSRx Load Doctor and SSRx Enhanced Load Doctor

are trademarks of Eurotherm.

Installation and Operation Handbook Operation

2208e and 2204e Controller 1-1

Chapter 1 OPERATION

PAGE

Front Panel Layouts1-2

Getting Started1-4

Navigation Diagram1-10

Parameter Tables1-12

Setting Alarm Levels1-19

Diagnostic Alarms1-20

Operation Installation and Operation Handbook

1-2 2208e and 2204e Controller

FRONT PANEL LAYOUT

Figure 1-1 Model 2208e front panel layout

Figure 1-2 Model 2204e front panel layout

DownButton

Manual mode

PageButton

ScrollButton

UpButton

Remote Setpoint

Output 2

Upper readout

Lower readout

Output 1

Setpoint 2active

Setpoint ratelimit active

OP1 OP2

2204e

SP2 REM

PageButton

ScrollButton

DownButton

UpButton

Manual mode

Setpoint 2 active PDSIO Remote Setpoint

Setpoint rate limit active

OP1 OP2

SP2 REM

2208e

Output 1 Output 2

Upper readout

Lower readout

RUN



Button orindicator

Name Explanation

OP1 Output 1 When lit, it indicates that heating output is on.

OP2 Output 2 When lit, it indicates that cooling output is on.

SP2 Setpoint 2 When lit, this indicates that Setpoint 2 has beenselected.

REM Remote SetpointWhen lit, this indicates that the PDSIO remoteSetpoint input has been selected. REM is alsoused to indicate that user comms is active.

MAN Manual light When lit, it indicates that manual mode has beenselected

RUN Run light When lit, it indicates that Setpoint rate limit isactive.

Page button Press to select a new list of parameters.

Scroll button Press to select a new parameter in a list.

Down button Press to decrease a value in the lower readout.

Up button Press to increase a value in lower readout.

Figure 1.3 Controller buttons and indicators

For Valve Positioning, please refer to Appendix D Motorised Valve ControlNOTE



GETTING STARTED

Thank you for selecting the EUROTHERM 2208e/2204e controller.This section shows the principle of operation.

VIEWING THE PROCESS VALUE and SETPOINT

Install and wire up the controller in accordance with Chapter 2 and switch on. Following a 3second self-test sequence, this is the display you will see,

Figure 1.4 The Home Display

The display may flash an alarm message. Refer to the Parameter Tables later in thischapter for a complete list and meaning of the messages.

TO ADJUST THE SETPOINT

Figure 1.5 The lower readout shows the setpoint

After 2 seconds the lower readout will blink indicating that the new value has been accepted.For everyday use you may not need to do anymore than this.

Output 1Actual Temperature (Process Value)Output 2

Required Temperature (Setpoint)

OP1 OP2

Press and hold toincrease temperature

Press and hold todecrease temperature

OP1 OP2

NOTE



VIEWING THE DISPLAY UNITS

Figure 1.6 Pressing or will flash the display units for 0.5 secs

If you get lost, pressing and together will return you to the Home display

USE OF THE SCROLL BUTTON

Pressing the scroll button will display the output power level. Continued pressing willdisplay further parameters in the operator scroll list.

Figure 1.7 Upper readout is parameter name. Lower is value

Display Units

Degrees Centigrade

Degrees Farenheit

Degrees KelvinNo units - Linear inputs

Momentarilypress eitherbutton

0.5 sec.

Keep pressing to return to Homedisplay or select further parameters(if available)

2nd press

3rd press

OutputActual output level %

Manual/AutoActual state

NOTE



USE OF THE PAGE BUTTON

The PAGE button accesses parameter LISTS.Parameters are settings in the instrument which, generally, can be changed by the user to suitthe process. Examples are: Alarms, Self Tune, etc. They are found under headings calledLISTS and a full set is given later in this chapter.

Figure 1.8 Press to choose a parameter list

The actual list headings may be longer or shorter than indicated above and you cancustomise this for the operators convenience in EDIT level, Chapter 3.

1st press

0.2 sec.

Keep pressing toselect more list headings

3rd press2nd press

NOTE



PARAMETER LISTS

Press to choose a LIST - ALARMS is a good one. This list allows you to set thealarm trip levels. The parameters which appear in the list will vary according to theconfiguration of your controller.

Figure 1.9 Choose a list. Press to select a parameter

If, at any time, no key is pressed within 45 seconds, the display will alwaysreturn to the HOME display.

or tochange trip level

or tochange trip level

1st press

2nd press

0.2 sec.

There are 4 alarms inthe controller. The firstcharacter is the alarmnumber. The followingthree letters indicatealarm type as follows:

Full Scale Low

Full Scale High

Deviation High

Deviation Low

Deviation Band

Low current

High currentDisabled alarms will notbe displayed.Chapter 7 gives a fulldescription of alarms.

Alarm List

Alarm 1

Now pressthe SCROLLbutton

2nd press

Keep pressing1. to scroll through further parameters2. to return to list header

Alarm 2

NOTE



OPERATING MODES

The controller can be used in two modes:Automatic mode - in which the output power is automatically adjusted to hold thetemperature at the required value. The controller normally operates in this mode.Manual mode - in which the output is manually adjusted by the Operator. In this mode theMAN light will be on.

One other mode is available:Remote setpoint - The setpoint is generated as an input signal from a master 2000 seriescontroller. In this mode the REM light is on.

AUTO or MANUAL SELECT

Figure 1.10 Auto/Manual select

or to select

2 sec.

1st press

OutputActual output level %

Manual/Auto

automatic mode

manual mode

2nd press

3rd press

Keep pressingto return to HOMEdisplay



MANUAL ADJUSTMENT OF OUTPUT POWER

Figure 1.11 The Home Display in manual mode

SUMMARY

To step through list headers press the Page button until the required header is obtained

To step through parameters within a particular list press the Scroll button until therequired parameter is obtained

To change the value (or state) of a parameter press the Raise button or theLower button

The remainder of this chapter provides a complete list of all parameters available.

Actual Temperature (Process Value)

OP1 OP2

Output Power Demand

Manual Indicator on

Press and hold toincrease power

Press and hold todecrease power

Manual mode is generally used for test and commissioning purposes, takecare not to leave the controller in this mode since damage or personal injurycould occur.

NOTE



NAVIGATION DIAGRAM (Part A)

The navigation diagram shows a full list ofpossible parameters. However, some may notappear because they are dependent upon theparticular controller variant.

Figure 1.12a Navigation diagram

HomeList

PID(1)List

AlarmList

AutotuneList

SetpointList

5

2

2

2

2

8

8

8

3

3

8

8

3

3

!

4

"

9

#$

%&'

$()

*



NAVAGATION DIAGRAM (PART B)

.

.

The shaded boxes are normally hidden in Operator level. To see all the availableparameters you must select Full level. See Chapter 3, Access Levels

Figure 1.12b Navigation diagram

InputList

OutputList

CommsList

AccessList

On OffList(1)

7

7

&

Notes:1. Either the PID list or the On/Off list will be present

depending upon the type of control in use.2. The last three characters depend upon the type of alarm

configured3. Absolute setpoint limits are set in configuration, see Chapter

5.4. VPOS only for VP. Refer to VP Appendix D.5. Amps is Mode 2 or Mode 5 PDSIO.6. mtr used for VP version. Refer to VP Appendix D.7. Beware! Used for calibration. See chapter 6.8. Is only available if using PDSIO comms in the HA slot.9. WSP is available if using ramp to setpoint.

&

%&

%&

$

*

Return toHome Display

6

+

7

+

!



PARAMETER TABLES

Name Parameter Description Default Value Minimum Maximum Units Customer SettingUK USA Value Value

Home ListHome Measured Value and Setpoint(SP) SP=25C SP=75F as display

Valve positioner output power

%of mtr

% Output Level

%

Working setpoint as display

Setpoint

as display

Heater current (PDSIO modes 2 and 5)

Amps

Auto/manual select

Configure lower readout of home display

None, StD, AmPS,OP, stat, vPoS

Customer ID

Additional parameters may appear in the Home display if the promote feature has been used (see Edit Level, Chapter 3).


Installation and Operation Operation

Name Parameter Description Default Value Minimum Maximum Units Customer SettingUK USA Value Value

Alarm List

Alarm 1 set point value

as display


as display


as display


as displayIn place of dashes, the last three characters indicate the alarm type, as follows:

Full Scale High alarm

as display

Full Scale Low alarm

as display

Deviation band alarm

as display

Deviation High alarm

as display

Deviation Low alarm

as display

Low current alarm

AMPS

High current alarm

AMPS

Hysteresis

as display

Loop break time

secs



Name Parameter Description Default Value Minimum Maximum Units Customer SettingsUK USA Value Value

!

!

Autotune List!

Self tune enable !

Automatic droop compensation (ManualReset) enable (only present if ti set to OFF"! "! "!

PID List

Proportional band

as display

Integral time# #

seconds

Derivative time# #

seconds

Manual reset (appears when ti set to OFF)

%

Cutback low

as display

Cutback high

as display

Relative cool gain (set 1)




Set Point List

Select SP1 or SP2

SP1 SP2

Local or remote setpoint select

Loc rmt

Setpoint 1 value$ %

As display range

Setpoint 2 value$ %

As display range

Remote setpoint

As display range

Local trim

As display range

Setpoint 1 low limit

As display range

Setpoint 1 high limit

As display range

Setpoint 2 low limit

As display range

Setpoint 2 high limit

As display range

Local setpoint trim low limit #

As display range

Local setpoint trim high limit

As display range

Setpoint rate limit &&

As display range'

Dwell time

0.1 to 999.9 minutes!

End type , ,

(

Program control !,

)

Status of program




Input list* Input filter time constant # # && secs

PV Offset

as displayThe next 5 parameters will appear if User calibration has been enabled in configuration level. To perform a user calibration refer to Ch 6.

FACt will re-instate factory settings and disable User Calibration. Default setting FACtUSEr will re-instate any previously set User Calibration offsets and make available User Calibration parameters as follows:

User calibration select none none Hi, Lo, none*

Adjust calibrated reference sourceThe following two parameters are always present in Full Access level but not in Operator level+

Cold Junction compensation temperature

,

Millivolt input

* A minimum filter time constant of one second is recommended to provide sufficient noise immunity.




Output list Note; If On/Off control is configured only , ! and ! will appear in the following list

Low (power) output limit (cool) %

High (power) output limit

%

Output setting when in sensor break

%1-

Heat cycle time (logic) (relay) secs!

Heat output min. on time (50mS) secs

1-

Cool cycle time (logic) (relay) secs

1!

Cool output min. on time (50mS) secs

VP motor travel time

secs

1 Are not used for Valve Position Control.




!&

!&

On/off listThis set of parameters only appear if On/Off control has been configured.-

Heat hysteresis

as display.-

Cool hysteresis

as display

Heat/Cool dead band

as display

C omms list

Communications address $

Access list

Full and Edit level password

( Goto level ///!

!

!

Configuration level password



SETTING ALARM LEVELS

Up to 4 Alarms may be configured. Each alarm is given a name to describe its function -see table below:If an alarm is not configured it does not appear in the list below.

In place of dashes,letters indicate alarmtype as follows: Full Scale Low Full Scale High Deviation Band Deviation High Deviation Low Low current High current

Alarm List

Alarm 1

2nd press

or to change

3rd press

4th press

5th press

Alarm 2

Alarm 3

Alarm 4

Loop break time

or to change

or to change

or to change

or to change

Press to returnto list header

Figure 1.13



DIAGNOSTIC ALARMSThese indicate that a fault exists in either the controller or the connected devices.

Displayshows

What it means What to do about it

Electrically ErasableMemory Error:The value of an operatoror configurationparameter has beencorrupted.

This fault will automatically take you intoconfiguration level. Check all of the configurationparameters before returning to operator level. Oncein operator level, check all of the operatorparameters before resuming normal operation. Ifthe fault persists or occurs frequently, contactEurotherm Controls.

Sensor Break:Input sensor isunreliable or the inputsignal is out of range.

Check that the sensor is correctly connected.

Loop Break:The feedback loop isopen circuit.

Check that the heating and cooling circuits areworking properly.

Load failureIndication that there is afault in the heatingcircuit or the solid staterelay.

This is an alarm generated by feedback from aEurotherm TE10S solid state relay (SSR) operatingin PDSIO SSRx Load Doctor-see Electricalinstallation Chapter 2. It indicates either an open orshort circuit SSR, blown fuse, missing supply oropen circuit heater.

Solid state relay failureIndication that there is afault in the solid staterelay

This is an alarm generated by feedback from aEurotherm TE10S solid state relay (SSR) operatingin PDSIO SSRx Load Doctor see Electricalinstallation Chapter 2. It indicates either an open orshort circuit condition in the SSR.

Heater failureIndication that there is afault in heating circuit

This is an alarm generated by feedback from aEurotherm TE10S solid state relay (SSR) operatingin PDSIO SSRx Enhanced Load Doctor-seeElectrical installation Chapter 2. It indicates either ablown fuse, missing supply or open circuit heater.

Hardware errorIndication that a moduleis of the wrong type.

Check that the correct modules are fitted.

No I/O moduleModules are configuredbut not fitted

Fit module.

Figure 1.14a Diagnostic alarms - continued on the next page



Diagnostic alarms continued

These indicate that a fault exists in either the controller or the connected devices.

Displayshows

What it means What to do about it

Remote input failure. ThePDSIO input is opencircuit. (PDSIO Alsoknown as SST SmartSetpoint Transmission)

Check for open or short circuit wiring on thePDSIO input

Out of Display range, lowreading

Check the value of the display range

Out of Display range, highreading

Check the value of the display range

Error 1: ROM self-test fail Return the controller for repair

Error 2: RAM self-test fail Return the controller for repair

Error 3: Watchdog fail Return the controller for repair

Error 4: Keyboard failureStuck button, or a buttonwas pressed during powerup.

Switch the power off and then on withouttouching any of the controller buttons.

Error 5: Input circuit failure Return the controller for repair*

Power failure. The linevoltage is too low

Check that the supply to the controller is withinthe rated limits

Table 1.14b Diagnostic alarms

*If the user has disassembled and reassembled the instrument, this error can occur if anyconnectors are not seated properly.

Installation and Operation Handbook Installation


Chapter 2 INSTALLATION

PAGE

Instrument Layouts ....................................................... 2-2

Introduction ....................................................... 2-4

Mechanical Installation ....................................................... 2-4

Wiring ....................................................... 2-5

Outputs 1 and 2 Connection ....................................................... 2-7

Communication Connections ....................................................... 2-8

Typical Wiring Diagram ....................................................... 2-10

Installation Installation and Operation Handbook


INSTRUMENT LAYOUTS

Figure 2-1 2208e 1/8 DIN controller

Figure 2-2 2204e 1/4 DIN controller

3

4

4

56

78

8

1

2

2

3

4

4

5

6

7

8

8

KEY

1. Display screen

2. Latching ears

3. Panel sealing gasket

4. Panel retaining clips

5. Label

6. Sleeve

7. Terminal covers

8. Ratchets

2

2

1



Outline dimensions Model 2208e

Figure 2-3 Outline dimensions Model 2208e controller

Outline dimensions Model 2204e

Figure 2-4 Outline dimensions Model 2204es controller

The controller plugs into a plastic sleeve, which in turn fits into the panel cutout shown inFigures 2-3 and 2-4.

2208

OP1 OP2

SP2 REM

Panelcutout

92 x 45mm

3.62x1.77in

-0+0.8

-0+0.6

-0+0.03

-0+0.02

103mm (4.01in)48mm (1.89in)

96mm(3.78in)

38mm(1.5in)

10mm(0.4in)

(Not toscale)

Recommendedminimum spacing ofcontrollers

2204

OP1 OP2

SP2 REM

Panel cutout

92 x 92 -0 +0.8mm

3.62 x 3.62 -0 +0.03in

103mm (4.01in)96mm (3.78in)

96mm3.78in

Recommendedminimumspacing ofcontrollers

38mm(1.5in)

10mm(0.4in)

(Not toscale)



INTRODUCTION

The Models 2208e and 2204e are precision temperature controllers with self tuning. Theyhave a modular hardware construction which provides two control outputs, two alarm relaysand one communications port. Two logic inputs are provided as standard. In addition theModel 2204e has an optional plug-in 10A relay heating output.

Controller labels

The labels on the sides of the controller identify the ordering code, the serial number, and thewiring connections.

Appendix A, Understanding the Ordering Code explains the hardware and softwareconfiguration of your particular controller.

MECHANICAL INSTALLATION

To install the controller

1. Cut the panel to the relevant hole size shown in Figure 2-3 and 2.4.

2. Insert the controller through the front of this cutout.

3. Spring the upper and lower panel retaining clips into place. Secure the controller inposition by holding it level and pushing both retaining clips forward.

Note: If the panel retaining clips subsequently need removing, they can be unhooked from theside with either your fingers or a screwdriver.

Unplugging and plugging-in the controller

The controller can be unplugged from its sleeve by easing the latching ears outwards andpulling it forward out of the sleeve. When plugging the controller back into its sleeve, ensurethat the latching ears click into place to maintain the IP 65 sealing.



WIRING

Please read Appendix B, Safety and EMC information before proceeding.

WARNINGPlease ensure that the controller is correctly configured for your application.Incorrect configuration could result in damage to the process being controlled,and/or personal injury. The controller may either have been configured whenordered, or may need configuring now. See Chapter 5, Configuration.

The wiring connections are shown in figure 2-5. Outputs 1 and 2 are factory fitted moduleswhich can be any one of the types shown in figure 2-8. Check the ordering code on thecontroller side label to determine which have been fitted.

Model 2208e connections

Figure 2-5 Model 2208e wiring connections

*The ground connection is not required for electrical safety but must be connected to satisfyEMC requirements.

*Do not use unused terminals as wire holders.

Pt100

N

L

V+

VI

V-

Line

Neutral

Ground

+

-

+PV-

2B

2A

1B

1A

HF

HD

HECommon

Input 1

Input 2

85 to 264Vac

LC

LA

LB

AC

AB

Output 1

3B

3A

3C

Output 2

Output 4

Output 3

AA

HB

HC

HA

Comms



Wire Sizes

All electrical connections are made to the screw terminals at the rear of the controller. Theyaccept wire sizes from 0.5 to 1.5 mm2 (16 to 22 AWG), and are protected by a hinged cover toprevent hands or metal making accidental contact with live wires. Rear terminals should betightened to a torque of 0.4Nm (3.5 lb in).Wiring connections

The wiring connections are shown in figure 2-6. Outputs 1 and 2 are factory fitted moduleswhich can be any one of the types shown in figure 2-8. Check the ordering code on thecontroller side label to determine which have been fitted.

Model 2204e Connections

Figure 2-6 Model 2204e Wiring connections

*The ground connection is not required for safety purposes but must be connected to satisfyEMC requirements.

*Do not use unused terminals as wire holders.

Input 1

Neutral

*Ground*

+

-

+PV-

85-264VacHIGH

CURRENT

OUTPUT

Pt100

Output 1

Output 2

4B

4C

4D

5A

5B

5D

6A

6B

6C

6D

5C

1B

2A

2B

1A

3A

3B

3C

N

LA

LB

LC

L

AB

AC

VI

V+

V-

AA

HB

HC

HD

HE

HF

HA

Line

BUSBAR

Line

BUSBAR

Output 4

Output 3

Input 2

Common

Comms

Line4A



Sensor input connectionsThe connections for the various types of input are as follows:

Fig 2-7 Sensor input connections

Sensor inputs should not be paralleled

OUTPUTS 1 AND 2 CONNECTIONS

Outputs 1 and 2 can be any one of the types shown in the table below, configured to performany one of the functions shown.

To check which outputs are installed, and their configuration, refer to the ordering code andthe wiring information on the controller side labels.

Connections

Output 1 Output 2 Possible functions

Module type 1A 1B 2A 2B

Relay: 2-pin (2A, 264 Vac max.)

HeatingCoolingAlarms

Logic: non-isolated* (18Vdc at 24mA)

+ - + -+PDSIO modes 1 or 2 (SSRx

Load Doctor Functions)HeatingCoolingAlarms

Triac(1A, 30 to 264Vac) Heating or cooling

DC control: isolated (18Vdc, 20mA max)

+ - DC not availablein output 2

PID Heating or cooling

*Logic output can also be configured as logic input on module 2A.+PDSIO Mode 1 & 2 are only supported in Module 1A.

Figure 2-8 Outputs 1 and 2 connections

VI

V+

V-

VI

V+

V-

VI

V+

V-

VI

V+

V-

Thermocouple Resistancethermometer mA inputVolts or mV

inputs

+

-

PV

2.49currentsenseresistor

Line Load Line Load

NOTE



PDSIO modes

PDSIO is a proprietary technique developed by Eurotherm for bi-directional communicationover a single pair of wires. There are several operating modes. In SSRx Load Doctor a logic output delivers a power demand signal to a TE10 solid state(SSR) relay and the SSR responds with a single load circuit failure message.In SSRx Enhanced Load Doctor a logic output delivers a power demand signal to an SSRand the SSR responds with the ON state rms load current, and two fault messages - SSR failureor heater circuit failure.

Snubbers

The controller is supplied with snubbers (15nF +100) which should be wired across therelay or triac outputs when switching inductive loads such as mechanical contactors andsolenoid valves. The snubbers are used to prolong contact life and to suppress interferencewhen switching such loads. Snubbers pass 0.6mA at 110Vac and 1.2mA at 240Vac, whichmay be sufficient to hold in high impedance relay coils. They should not, therefore, be used insuch installations.

WARNINGWhen a relay contact is used in an alarm circuit ensure that the current passing throughthe snubber when the relay contact is open does not hold in low power electrical loadsand thereby interfere with the failsafe operation of the alarm circuit.

COMMUNICATION CONNECTIONS

The communication option can be either of four types shown in the table below

Connection

Communications type HB HC HD HE HF

4-wire EIA-422 serialcommunications*

A (RX +)

B (RX -)

Common A (TX +)

B (TX -)

2-wire EIA-485 serialcommunications*

Not used Not used Common A (TX +) (RX +)

B (TX -) (RX +)

EIA-232 serialcommunications

Not used Not used Common A B

PDSIO Setpoint input Not used Not used Not used Signal Common

*The 4-wire EIA-422 communication board can be modified to support 2-wire 485communication. Please consult factory.

Figure 2-9 Communication connections



Wiring of EIA-485 serial communication links

Local

LocalEarth

HF +S eries 2000Controller

Com

Note:All termination res istors are 220 ohm 1/4W carbon composition.Local grounds are at equipotential. Where equipotential is not available wire intoseparate zones us ing a galvanic isolator.

AB

PC

Universal Convertor

RXT XCom

Com T XRX

Up to 32controllers orInterface Units maybe included on thenetwork

232

Com B A

Com

AB

GalvanicIsolationBarrier

Com

AB

Com

AB

Local Earth

Com

AB

Earth

UniversalConverter

MMI

S eries 2000Controller

S eries 2000Controller

For safety reasons,do not connect tolocal earth here.

HD

HF+

HE

HD

HF+

HE

HE

HD

Figure 2-10 2-wire EIA-485 wiring

Standard EIA-485 is a 2-wire connection which allows upto 32 controllers to be multi-dropped from a singlecommunications link over a distance of up to 1.2Km. Toensure reliable operation of the communications link,(without data corruption due to noise or line reflections) theconnections between the controller should be made usinga twisted pair of wires inside a shielded cable with theconnections terminated with resistors in the manner shownin this diagram. This diagram also shows the use of aComms converter to connect the 2-wire EIA-485 link into astandard EIA-232 computer port.

Common and LocalEarth cannot beconnected together.



TYPICAL WIRING DIAGRAM

Fig 2-11 Typical wiring diagram, Model 2208e Controller

Neutral

N

L

V+

VI

V-

+

-

+

PV-

2B

2A

3B

3A

3C

1B

1A

HF

HD

HE

LC

LA

LB

AC

AA

AB

Cooling PowerFuse 1A(T)

Heating power fuse(load dependent)

CoolingSolenoid Valve

HeaterThermocouple

-

ControllerFuse2A(T)

Solid StateRelay

such asTE10S+

-

Snubber

Output 1logicheating

Line

Output 2Triaccooling

HC

HA

HB

Installation and Operation Handbook Access Levels


Chapter 3 ACCESS LEVELS

PAGE

The Different Access Levels .......................................................... 3-2

Selecting an Access Level .......................................................... 3-3

Edit Level .......................................................... 3-5

Access Levels Installation and Operation Handbook


This chapter describes the different levels of access to the operating parameters within the2208e and 2204e controller.

There are three topics: THE DIFFERENT ACCESS LEVELS SELECTING AN ACCESS LEVEL EDIT LEVEL

THE DIFFERENT ACCESS LEVELS

Access level Displayshows

What you can do PasswordProtection

Operator

In this level operators can view and adjust thevalue of parameters defined in Edit level (seebelow).

No

Full

In this level all the parameters relevant to aparticular configuration are visible. Allalterable parameters may be adjusted.

Yes

Edit

In this level you can set which parameters anoperator in Operator level is able to view andadjust. You can hide or reveal complete listsand individual parameters within each list, andyou can make parameters read-only oralterable. You can also promote parametersto the home list. (See Edit level at the end ofthe chapter).

Yes

Configuration

This special level allows access to set up thefundamental characteristics of the controller.

Yes

Figure 3-1 Access levels



SELECTING AN ACCESS LEVEL

Access to Full, Edit or Configuration levels is protected by a password to preventunauthorised access.If you need to change the password, see Chapter 5, Configuration

Access list header

Press until you reach the access list header .

Press the Scroll button

Password entry

The password is entered from the display.Enter the password using the or buttons. Once

the correct password has been entered, there is a two second delayafter which the lower readout will change to show indicating that access is now unlocked.The pass number is set to 1 when the controller is shipped fromthe factory.

Note; A special case exists if the password has been set to . Inthis case access will be permanently unlocked and the lowerreadout will always show

Press the Scroll button to proceed to the display.

(If an incorrect password has been entered and the controller is stilllocked then pressing Scroll at this point will simply return you tothe list header.)

Note: From this display, you can access read onlyconfiguration level by pressing and together.

To escape, press and together.



.

.

Level selection

The display allows you to select the requiredaccess level.

Use and to select from the following displaycodes: Operator level: Full level Edit level: Configuration level


If you selected either , or level youwill be returned to the list header in the level thatyou chose. If you selected , you will get analternative display showing in the upper readout(see below).

Configuration password

When the display appears, you must enter theConfiguration password in order to gain access toConfiguration level. Do this by repeating the passwordentry procedure described in the previous sectionThe configuration password is set to when thecontroller is shipped from the factory. If you need tochange the configuration password, see Chapter 5,Configuration


Configuration level

The first display of configuration is shown. See chapter5, Configuration for details of the configurationparameters.For instructions on leaving configuration level seeChapter 5, Configuration.



Returning to Operator Level

To return to operator level from either or level, repeat entry of the passwordand select on the display.In Edit level the controller will automatically return to operator level if no button is pressedfor 45 seconds.

EDIT LEVEL

Edit level is used to set which parameters you can see and adjust in Operator level. It alsogives access to the Promote feature which allows you to select and add (Promote) up totwelve parameters into the Home display list, thereby giving simple access to commonly usedparameters.

Setting operator access to a parameter

First you must select level, as shown on the previous page.Once in level you select a list or a parameter within a list in the same way as you wouldin Operator or Full level. hat is, you move from list header to list header by pressing thePage button, and from parameter to parameter within each list using the Scroll button.However, in Edit level what is displayed is not the value of a selected parameter but a coderepresenting the parameters availability in Operator level.

When you have selected the required parameter, use the and buttons to set itsavailability in operator level.There are four codes:

Makes a parameter alterable in Operator level

Promotes a parameter into the Home display list

Makes a parameter or list header read-only (it can be viewed but not altered)

Hides a parameter or list header.For example:

The parameter selected is the set point for Alarm2 - Full Scale Low

It will be alterable in Operator level



Hiding or revealing a complete list

To hide a complete list of parameters, all you have to do is hide the list header. If a list headeris selected only two selections are available: and .(It is not possible to hide the list which will always display the code: .)Promoting a parameter

Scroll through the lists to the required parameter and choose the code. The parameter isthen automatically added (promoted) into the Home display list (the parameter will also beaccessible as normal from the standard lists. a maximum of 16 parameters can be promoted.Promoted parameters are automatically alterable.

Installation and Operation Handbook Tuning


Chapter 4 TUNING

PAGE

What is Tuning? .................................................................. 4-2

Automatic Tuning .................................................................. 4-3

Manual Tuning .................................................................. 4-6

Tuning Installation and Operation Handbook


Before tuning please read Chapter 1, Operation, to learn how to select and change aparameter.This chapter has three main topics: WHAT IS TUNING? AUTOMATIC TUNING MANUAL TUNING

WHAT IS TUNING?

In tuning you match the characteristics of the controller to that of the process being controlledin order to obtain good control. Good control means:Stable straight-line control of the temperature at setpoint without fluctuationAcceptable overshoot or undershoot of the temperature setpointQuick response to deviations from the setpoint caused by external disturbances, therebyrestoring the temperature rapidly to the setpoint value.Tuning involves calculating and setting the value of the parameters listed in Table 4-1. Theseparameters appear in the list.

Parameter Code Meaning or Function

Proportionalband

The bandwidth in display units over which the output power isproportioned between minimum and maximum.

Integral time

Determines the time taken by the controller to remove steady-state error signals.

Derivativetime

Determines how strongly the controller will react to the rate-of-change of the measured value.

Low cutback

The number of display units below setpoint at which thecontroller will cutback the output power in order to preventovershoot on heat up.

High Cutback

The number of display units above setpoint at which thecontroller will increase the output power in order to preventundershoot on cool down.

Relative coolgain

Only present if cooling has been configured. Sets the coolingproportional band by dividing the Pb value by the rEL.C value.

Table 4-1 Tuning parameters



AUTOMATIC TUNING

This method automatically determines the value of the parameters listed in table 4-1 on theprevious page.The 2208e and 2204e use a one-shot tuner which works by switching the output on and offto induce an oscillation in the measured value. From the amplitude and period of theoscillation, it calculates the tuning parameter values.If the process cannot tolerate full heating or cooling being applied during tuning, then thelevel of heating or cooling can be restricted by setting the heating and cooling power limits inthe Output list. However, the measured value must oscillate to some degree for the tuner to beable to calculate valuesA One-shot Tune can be performed at any time but normally it is performed only once duringthe initial commissioning of the process. However, if the process under control subsequentlybecomes unstable (because its characteristics have changed), you can re-tune again for the newconditions.It is best to start tuning with the process at ambient temperature. This allows the tuner tocalculate more accurately the low cutback and high cutback values that restrict the amount ofovershoot or undershoot.

Heating and Cooling Output Cycle Times

Before commencing a tuning cycle, set the values of (heat cycle time) and (coolcycle time) in the op (output list). These values apply if you are using a logic, relay or triacoutput. They have no effect on a DC output.A logic output switching a solid state relay can be set to values such as 1 sec.A relay or triac output should be set to 20 sec.



How to tune

1. Set the setpoint to the value at which you will normally operate the process.2. In the list, select and set it to 3. Press the Page and Scroll buttons together to return to the Home display. The display

will flash to indicate that tuning is in progress.4. The controller will induce an oscillation in the temperature by turning the heating on and

then off. The first cycle will not complete until the measured value has reached therequired setpoint.

5. After two cycles of oscillation the tuning will be completed and the tuner will switchitself off.

6. The controller will then calculate the tuning parameters listed in Table 4-1 and willresume normal control action.

If you want Proportional only or PD or PI control, you should set the or parameters to before commencing the tuning cycle. The tuner will leave them off andwill not calculate a value for them.

For valve position tuning and set-up, please refer to Appendix D.



Typical automatic tuning cycle

Calculation of the cutback values

Low cutback and High cutback are values that restrict the amount of overshoot or undershootthat occur during large step changes in temperature (for example, under startup conditions).If either low cutback or high cutback is set to the values will be fixed at three timesthe proportional band, and will not be changed during automatic tuning.

Time

SetpointTemperature



MANUAL TUNING

If for any reason automatic tuning gives unsatisfactory results, you can tune the controllermanually. There are a number of standard methods for manual tuning. The one describedhere is the Ziegler-Nichols method.With the process at its normal running temperature:1. Set the Integral Time and the Derivative Time to .2. Set High Cutback and Low Cutback, and , to 3. Ignore the fact that the temperature may not settle precisely at the setpoint4. If the temperature is stable, reduce the proportional band so that the temperature just

starts to oscillate. If the temperature is already oscillating, increase the proportional banduntil it just stops oscillating. Allow enough time between each adjustment for the loop tostabilise. Make a note of the proportional band value B and the period of oscillation T.

5. Set the Pb, ti, td parameter values according to the calculations given in Table 4-2.

Type of control Proportionalband Pb

Integral time ti Derivative timetd

Proportional only 2xB OFF OFF

P + I control 2.2xB 0.8xT OFF

P + I + D control 1.7xB 0.5xT 0.12xT

Table 4-2 Tuning values



Setting the cutback values

The above procedure sets up the parameters for optimum steady state control. If unacceptablelevels of overshoot or undershoot occur during start-up or for large step changes intemperature, then manually set the cutback parameters and .Proceed as follows:1. Set the low and high cutback values to three proportional bandwidths (that is to say, Lcb

= Hcb = 3 x Pb).2. Note the level of overshoot or undershoot that occurs for large temperature changes (see

the diagrams below).In example (a) increase by the overshoot value. In example (b) reduce by theundershoot value.Example (a)

Temperature

Example (b)

Temperature

Where the temperature approaches setpoint from above, you can set ina similar manner.

Time

Undershoot

SetpointOvershoot



Integrating action and manual resetIn a full three-term controller (that is, a PID controller), the integral term ti automaticallyremoves steady state errors from the setpoint. If the controller is set up to work in two-termmode (that is, PD mode), the integral term will be set to . Under these conditions themeasured value may not settle precisely at setpoint. When the integral term is set to OFF theparameter manual reset (code ) appears in the in Access level.This parameter represents the value of the power output that will be delivered when the erroris zero. You may set this value manually in order to remove the steady state error.

Automatic droop compensation (Adc)

The steady state error from the setpoint, which occurs when the integral term is set to OFF, issometimes referred to as droop. automatically calculates the manual reset value inorder to remove this droop. To use this facility, you must first allow the temperature tostabilise. Then, in the autotune parameter list, you must set to . The controllerwill then calculate a new value for manual reset, and switch to . can be repeated as often as you require but between each adjustment you must allow timefor the temperature to stabilise.

Installation and Operation Handbook Configuration


Chapter 5 CONFIGURATIONPAGE

Selecting Configuration Level ...................................................... 5-2

Leaving Configuration .................................................................. 5-3

Steps Involved in Configuring a Controller ................................... 5-3

Navigation Diagram ...................................................................... 5-4

Configuration Parameter Tables .................................................. 5-6

WARNINGConfiguration is protected and should only be carried out by an authorised person.Incorrect configuration could result in damage to the process being controlled and/orpersonal injury. It is the responsibility of the person commissioning the instrument toensure that the configuration is correct.


Configuration Installation and Operation Handbook

SELECTING CONFIGURATION LEVEL

Figure 5.1

At this point thecontroller is inconfiguration level

HOMEdisplay

Press Pagebuttonrepeatedlyuntil AccessList appears

or to enter password (factory default = 1)

If incorrectpasswordentered

or to enterpassword (factory default = 2)

Note: Selectingor will allow direct entry tothese levels at this point

1st press

2nd press

3rd press

If the password hasbeen set to - accessis permanentlyunlocked & the lowerreadout always shows

Repeated pressing of Page buttonselects configuration list headings in a

continuous loop

2 secs

or to select

4th press



LEAVING CONFIGURATION LEVEL

STEPS INVOLVED IN CONFIGURING A CONTROLLER

The navigation diagram which follows shows the general location of parameters which definethe way in which the controller works. They are grouped under headings. The actual parametersshown in your controller may differ slightly since some appear only as a result of selectingothers. A full list of possibilities is included in the PARAMETER TABLES which follow thenavigation diagram.

or to select

Keep pressing untilExit display appears

After a 2 second delay the screenwill blank, the instrument will reset,and revert to the Home display

Figure 5.2



NAVIGATION DIAGRAM (PART A)Instrument Input User cal. Alarms Logic input 1 Logic input 2 Output AA

Config Config Config Config Config Config Config

Seeparametertables

!

"

#$

%

&

!

'

'

(

!

(

)

(

&

(

The Principle of Operation is thesame as that already described inCh1.That is:

Step through List Headers using the Page button

Choose a parameter from a list using the Scroll button

Change value using the Raise/Lower buttons

The first 4 headings set up thecontroller functions, as follows:Instrument Config. - Groups thoseparameters associated with thedisplay and control action.Input Config. - selects the inputsensor typeUser cal. Config. - to calibrate toexternal reference sourcesAlarms Config. - sets up the alarmtypes

*

+



NAVIGATION DIAGRAM (PART B)Comms Output 1 Output 2 Output 3 10A output PasswordConfig Config Config Config Config Config

See Table Bparameter table,page 5-13

See Table Bparameter table,page 5-14

!

)

,

&

"

"

"

$

-

(+

./

!

0

1

2

'+

'+



Heading Input/Output Functions Wiring TerminalsThe first four headings set up the controller functions as follows:

Sets up display and control parameters Not applicable

Selects the input sensor type Not applicable

To calibrate to external reference sources Not applicable

Sets up the alarm types Not applicableThe remaining headings configure the controller input/output functions.The upper readout corresponds to rear terminal numbers associated with a particular i/o.

Sets up the action of the two digital inputs LA & LB

Sets up the action of the fixed relay on output AA AA to AC

Sets up digital comms type HB to HF

Sets up the output modules 1A and 2A 1A & 1B / 2A & 2B

Sets up the action of the fixed relay on output 3A 3A to 3C

Sets the action of the 10A output relay in 2204 4A to 6D

To choose new passwords / To leave configuration level and return to operator level



NOTE

CONFIGURATION PARAMETER TABLES

Name Parameter description Values Meaning

Instrument configuration

Instrument

Centigrade (default UK)units

Fahrenheit (default USA)

Kelvin

Units are not displayed

Decimal places in the

Nonedisplayed value

One

Two

Control type

On/off control

PID controlVP Control

Control action

Reverse acting (required fortemperature control) - outputdecreases on approach tosetpoint.

Direct acting

Type of cooling

Linear

Oil (50mS min on time)

Water(non-linear)

Fan (0.5S min on time)

Power feedback

Power feedback is on(compensates for changes insupply voltage)

Power feedback is off

Bumpless manual/auto

Non-bumpless transfertransfer when using PD control

Bumpless transfer (auto to manualand manual to auto)

Forced manual output

Bumpless manual/auto transfer

Returns to the manual value thatwas set when last in manualmode.

Sensor break output

Go to pre-set value (maintainsoutput at a known, safe level)

Freeze output (maintains output atvalue immediately before break)

Load Current Scaling Factor

See Appendix E-10

Factory default parameter values and states are included where applicable and areindicated by the shaded areas in the following tables.



Name Parameter description Value Meaning

Input configuration

Input type

J thermocouple (default USA)

K thermocouple (default UK)

L thermocouple

R thermocouple (Pt/Pt13%Rh)

B thermocouple (Pt30%Rh/Pt6%Rh)

N thermocouple

T thermocouple

S thermocouple (Pt/Pt10%Rh)

PL 2 thermocoupleNOTE: 100 platinum resistance thermometer.

After selecting an inputtype, do not forget toadjust the setpoint limitsin Full Access level

Custom downloaded input type. Thedefault is C thermocouple, or the name ofthe downloaded custom input will bedisplayed.!"

Linear millivolt (Also mA input via anexternal 2.49 current sense resistor)

Linear voltage#

Input range low Display low range for input#

Input range high Display high range for input

CJC ref. temperature

Automatic cold junction compensation(CJC does not appear for 0C external reference

linear inputs)$% 45C external reference% 50C external reference

Linear Input Scaling - The next 4 parameters only appear if a linear input is chosen

Input value low

Input value high

"

Displayed reading low

"

Displayed reading high

&!

Sensor break inputimpedance trip level

Sensor break detection is disabledAppears for mV or V inputs only

Trip level set by the sensor input table Trip level set at 7.5K

Trip level set at 15K (must be selectedwhen input is enabled)

Displayed

Value

ElectricalInput



Name Parameter description Value Meaning

User calibration config. See Chapter 6 - User calibration

User cal enable

User calibration is disabled

User calibration is enabled

User calibrationpoint low

This is the value (in display units) at which a Userlast performed a low point calibration

User calibrationpoint high

This is the value (in display units) at which a Userlast performed a high point calibration

Low pointcalibration offset

Offset, in display units, at the user low calibrationpoint Pnt.L. This value is automatically calculatedwhen performing low point calibration.

High pointcalibration offset

Offset, in display units, at the user high calibrationpoint Pnt.H. This value is automatically calculatedwhen performing a high point calibration.

* If User calibration is enabled, then the User calibration parameters will appear in the Input list ofOperator Full access level. See Chapter 6, User calibration.



NOTE

Name Parameter description Values

Alarm configuration Values Defaults if not specified

Alarm 1 Type As table A

Alarm 1 Blocking(1)/

'

Alarm 1 Latching//!(



'

Alarm 2 Latching//!(

)



'

Alarm 3 Latching/(/!(

$



'

Alarm 4 Latching/(/!(

Table A: Alarm types

No alarm

Full scale low

Full scale high

Deviation band

Deviation high

Deviation low

Low current

High current

(1) Blocking allows the alarm to become active only after it has first entered a safe state.

These are soft alarms, i.e. Indication only. They would normally be attached to anoutput. See Chapter 7 for a step by step guide.



Name Parameter description Values

Logic input 1 configuration Functions Action on contact closure

Identity of input+

Logic input

Function

None!

Manual mode select!

Remote setpoint select

Setpoint 2 select

Integral hold

Acknowledge alarms

Lock Key pad

Reset

Standby - ALL outputs = OFF!

PDSIO load current input

Logic input 2 configuration Functions Action on contact closureAs per Logic input 1 except ! not available



Name Parameter description Functions Meaning

Alarm relay configuration Functions Meaning

Identity of output,

Relay

Function

None+ Function set by + (as in

Table B)

Heating

CoolingFor -tion = + go to table B on the next page

Sense of output (alwaysappears)

Normal (heat & cool outputs)Inverted (alarms de-energisedin the alarm state)

Comms module config Functions Meaning

Identity of the option installed.

PDSIO setpoint input

!

2- or 4-wire EIA-485 (422) orEIA-232 comms module

FunctionSome of the following parameters may appear if one of the comms options is installed

!

DIGITAL Communicationprotocol ordered

NoneThe following parameters will appear if the PDSIO setpoint input option is installed.

No PDSIO function

PDSIO setpoint input"

PDSIO low input value Range = -999 to 9999"

PDSIO high input value Range = -999 to 9999The following parameters will appear if the function chosen is Mod protocol./

Baud Rate 1200, 2400, 4800, 9600, 19.20, 1920 (19200)*, Comms Parity No parity

Even parity

Odd parity* Comms Resolution Full resolution&

Integer resolution

*Not used with some communication protocols. Please consult factory.



Name Parameter description Function Meaning

Output 1 configuration Function Meaning

Identity of module installed

No module fitted0,

Relay output

DC output (isolated)+

Logic or PDSIO output

Triac output

Function1

Module does not operate.&+ Function set by +

Heating output

Cooling outputOnly appear for id = dC.OP

Retransmission of outputdemand

Only appear for id = dC.OP"

Retransmission of ProcessValue

Only appear for id = dC.OP

Retransmission of errorOnly appear for id = dC.OP

Retransmission of setpointOnly appear for id = LoG

PDSIO mode heatingOnly appear for id = LoG

PDSIO mode 2 heatingFor -tion = + go to table B below

Sense of output

Normal (e.g.heating and cooling)Inverted (alarms - de-energise inalarm)

DC output scaling For id = dC.OP the following parameters appear

DC output minimum 0mA to 20mA

DC output maximum 0mA to 20mA



Table B The following parameters appear if + is chosen as the function.+

Digital output functions

'

No changeAny number of the functionslisted can be combined on tothe output. Use the

and

buttons to selecta desired digital function.After two seconds thedisplay will blink and returnto the

' display. Usethe arrows again to scrollthrough the function list.The previously selectedfunction display will showtwo decimal points indicatingthat it has been added to theoutput.

2 2 2

*

2 2 2 *

) 2 2 2 *

$ 2 2 2 *

3

-

1

1(

0!

'

Clear all existing functionsAlarm 1 *Alarm 2 *Alarm 3 *Alarm 4 *Manual/AutoSensor BreakLoop BreakHeater FailLoad FailEND ProgramPV Out of RangePDSIO SSR FailureNew AlarmRemote Sp FailCTx open circuitCtx short circuit

* From previous page. In place of the dashes, the last three characters indicate the alarm type as per tableA in the AL list: eg = Full Scale Low If an alarm is not configured the displayed name will differ:e.g. will be shown, for the first alarm.

Name Parameter description Function Meaning

Output 2 configuration Function Meaning

Identity of module installed

No module fitted,

Relay output+

Logic

Triac output

Function

none

Outputs+ Function set by +

Heating output

Cooling outputLogic Inputs!

Manual mode select!

Remote setpoint select

Setpoint 2 select

Integral hold

Acknowledge alarms

Standby - ALL outputs = OFFFor = + (Refer to table B on page 5-13).

Sense of output

Normal (heat and cool outputs)Inverted (alarms - de-energise in alarm)



)

)

Output 3 configuration As per output AA configuration

$

$

10Amp heating output Available on 2204e only.As per Output 3A configuration

Password list

FuLL or Edit level password

Configuration level Password

4

4

Exit Configuration

/

Installation and Operation Handbook User Calibration


Chapter 6 USER CALIBRATION

PAGE

What is the Purpose of User Calibration? ................................... 6-2

User Calibration Enable ............................................................... 6-3

Single Point Calibration ............................................................... 6-4

Two Point Calibration .................................................................. 6-5

Calibration Points and Calibration Offsets .................................. 6-6

User Calibration Installation and Operation Handbook


This chapter has five topics: WHAT IS THE PURPOSE OF USER CALIBRATION? USER CALIBRATION ENABLE SINGLE POINT CALIBRATION TWO POINT CALIBRATION CALIBRATION POINTS AND CALIBRATION OFFSETS

To understand how to select and change parameters in this chapter you will need to have readChapter 2 - Operation, Chapter 3- Access Levels and Chapter 5 - Configuration.

WHAT IS THE PURPOSE OF USER CALIBRATION?

The basic calibration of the controller is highly stable and set for life. User calibration allowsyou to offset the permanent factory calibration to either:

1. Calibrate the controller to your reference standards2. Match the calibration of the controller to that of a particular transducer or sensor input3. Calibrate the controller to suit the characteristics of a particular installation.

User calibration works by introducing zero and span offsets onto the factory set calibration.The factory set calibration can always be retrieved.



USER CALIBRATION ENABLEThe User calibration facility must first be enabled in configuration level by setting theparameter ' in the list to '' This will make the User calibrationparameters appear in Operator level.Select configuration level as shown in Chapter 5, Configuration

The User calibration configuration List

Press until you reach the list

ress the Scroll button until you reach

User calibration enable

Use or to select:

: Calibration enable: Calibration disabled

Press and together to go to the Exit display

Exit configuration

Use or to select and return to Operator level.



SINGLE POINT CALIBRATION

Your controller is calibrated for life against known reference sources during manufacture. Acalibration offset is often used to allow the controller to compensate for sensor and othersystem errors. The normal procedure is to set up the system under test against a knownindependent reference, as follows:Set up the process to be calibrated such that the known reference displays the required value(temperature).Observe the reading on the controller. If it is different, proceed as follows:Select Access level as described in Chapter 3

Input list header

Press until you reach the input list header.

Press Scroll until you reach the display

Calibration type

Use or to select either or .Selecting will reinstate the factory calibration andhide the following User calibration parameters.Selecting will reinstate any previously set Usercalibration and make available the User parameters, asfollows:


Calibrate low point?

Use or to select Selecting no will hide the next parameter

Press the Scroll buttoncontinued on the next page



To protect the calibration against unauthorised adjustment return to Operator level and makesure that the calibration parameters are hidden. Parameters are hidden using the facility describe in Chapter 3.

TWO POINT CALIBRATION

The previous section described how to perform a single point calibration which applies a fixedoffset over the full display range of the controller. A two-point calibration is used to calibratethe controller at two points and apply a straight line between them. Any readings above orbelow the two calibration points will be an extension of this straight line. For this reason it isbest to calibrate with the two points as far apart as possible.Proceed as follows:1. Decide upon the low and high points at which you wish to calibrate.2. Perform a single point calibration at the low calibration point in the manner

described above3. Set the process under calibration such that the known reference exhibits the required

higher Process Value (temperature) and allow to stabilize.4. Press the Scroll button to obtain the high calibration point as shown in the

following diagrams.

Adjust the low point calibration

The controller will display the current measured input value in thelower readout.

Use or to adjust the reading to the reference sourcevalue, if different.After a two second delay the display will blink and the reading willchange to the new, calibrated value. You can calibrate at any pointover the entire display rangeThis is a single point calibration which applies a fixed offset over thefull display range of the controller.The calibration is now complete. You can return to the factorycalibration at any time by select in the CAL display shownearlier.

Press

and

together to return to theHome display



To protect the calibration against unauthorised adjustment return to Operator level and makesure that the calibration parameters are hidden. Parameters are hidden using the facility described in Chapter 3.

CALIBRATION POINTS AND CALIBRATION OFFSETS

If you wish to see the points at which the User calibration was performed and the value of theoffsets introduced these are shown in Configuration, under . The parameters are:

Name Parameter description Meaning

User low calibration point This is the value (in display units) at which a Userlast performed an (adjust low calibration).

User high calibration point This is the value (in display units) at which a Userlast performed an (adjust high calibration).

Low point calibration offset Offset, in display units, at the user low calibrationpoint

High point calibration offset Offset, in display units, at the user high calibrationpoint .

Calibrate high point?

Use or to select


Adjust the high point calibration

The controller will display the current measured input value in thelower readout.

Use or to adjust the reading to the reference sourcevalue, if different.After a two second delay the display will blink and the reading willchange to the new, calibrated value.

The calibration is now complete. You can return to the factorycalibration at any time by select in the display shownearlier.

Installation and Operation Handbook Alarm Operation


Chapter 7 ALARM CONFIGURATIONPAGE

Definition of Alarms and Events ...................................................... 7-2

Types of Alarms ................................................................................ 7-2

Step 1 - Configuring the Four Soft Alarms .................................... 7-5

Step 2 - Attaching an Alarm to a Physical Output .......................... 7-6

Step 3 - Grouping Alarms on a Single Output ................................. 7-7

Step 4 - Removing Alarms from an Output ...................................... 7-7

The 2200e series controllers are capable of very sophisticated alarm strategies and, althoughsetting up of alarms has already been covered in previous chapters, this section has beenincluded to enable operators and commissioning engineers to design their own strategies foroptimum plant operation.

Alarm Operation Installation and Operation Handbook


DEFINITION OF ALARMS AND EVENTS

Alarms are used to alert an operator when a pre-set level or condition has been exceeded.They are normally used to switch an output - usually a relay - to provide interlocking of themachine or plant or external audio or visual indication of the condition.

Soft Alarms are indication only within the controller and are not attached to an output (relay).Events - can also be alarms - but are generally defined as conditions which occur as part of thenormal operation of the process. They do not generally require operator intervention.

Events are referred to as Digital Output Functions in the manual (see Table B, page 5-13).For the purposes of the operation of this instrument alarms and events can be consideredthe same.

TYPES OF ALARMS

The use of alarms in the 2208e and 2204e controllers is extremely versatile.Up to 4 alarms can be configured. Any combination of these 4 alarms can be attached to anyone or more outputs, or any number of the available soft alarms can be combined to operatea single output.

Note: In a three term controller at least one of these outputs is used to maintainthe required temperature of the process.

Outputs 1A and 2A Are plug in modules.Normally used for control outputs, eg. Heat and Cool, but canbe used for alarm outputs.

Outputs AA and 3A Are fixed relays.Normally used for alarms or events, but can be used as controloutputs.

10A Output 4A (2204e 0nly) Is a plug in 10 Amp relay output.Normally used to switch heaters directly in control mode, butcan be used as an alarm output.

NOTE



There are seven process alarm types listed below. Alarm Types are found in configurationmode under the Alarm Config. List.

ALARMS

Full Scale High The PV exceeds a set high level

Full Scale Low The PV exceeds a set low level

Deviation Band The difference between PV & SP is outside a set band

Deviation High The difference between PV & SP is higher than a set level

Deviation Low The difference between PV & SP is lower than a set level

High Current The measured current returned from a PDSIO slave is higher than aset level

Low Current The measured current returned from a PDSIO slave is lower than aset level

Each alarm can be set to:

Latching Alarm is indicated until acknowledged(Off, Auto, MAN)

Auto Acknowledge: ( )If the alarm is acknowledged while the alarm condition is stillpresent, it will cause the alarm to reset as soon as the alarmcondition is removed.

Manual Acknowledge: ( )If the alarm is acknowledged while the alarm condition isstill present, it will be ignored. A further acknowledgementis required when the alarm condition has been removed tocause the alarm to reset.

Blocking Alarm occurs after it has been through a start up phase not in alarmcondition.

Sense Of Output Relay energised or de-energised in alarm condition.



In addition there are nine digital output functions used as events or alarms depending uponthe requirements of the process under control:

DIGITAL OUTPUT FUNCTIONS

Sensor Break` The input is open circuit

Loop Break The controller does not measure a response to anoutput change

Load Failure Used with PDSIO Mode 1 load failure

Manual Controller in manual mode

PV Out Of Range Process Variable too high or too low

Remote SP Fail No signal measured at the remote set point input terminals

Heater Fail Used with PDSIO Mode 2 heater open circuit

SSR Fail Used with PDSIO Mode 2 solid state relay open or shortcircuit

Program END Signals the end of a program

New Alarm Signals a new alarm

The Sense of the Output can be set to relay energised or de-energised in the alarm conditionfor any of the above functions.



STEP1 - CONFIGURING THE FOUR SOFT ALARMS

Go To Configuration LevelRefer to Chapter 5

Press PAGE keyas many times as necessaryto find Alarm Configuration

Press SCROLL keyto the alarm which needs tobe configured

Alarm Type choicesare

OFF Full Scale Low Full Scale High deviation Band deviation High deviation low

Low current High current

Press SCROLL keyto choose alarm 1 latchingor non-latching

Choices No/Auto/Man Press

Press SCROLL keyto choose alarm 1 blocking

Choices Yes/No press

Press SCROLL keyto repeat for alarms 2 - 4to return to list header

Figure 7.1



STEP 2 - ATTACHING AN ALARM TO A PHYSICAL OUTPUTThis may be necessary if:1. The instrument has been supplied un-configured or it is required to re-configure2. Alarm relays are added

Press PAGE keyas many times as necessaryto find AA Configuration

Press SCROLL keyto identification of outputtype (this is read only)

Press SCROLL keyto output Function

Use or to select Other choices are:1. 2. 3.

Use or buttons toselect a desired digital function,e.g., . Other choices areshown in the table on the nextpage. After two seconds, thedisplay will blink and return tothe (no change) display.Use the arrows again to scrollthrough the function list. Thepreviously selected function willshow 2 decimal pointsindicating that it has beenadded to the output, i.e., .

Use orto select:1. inverted (relay de-energised

in alarm)2. direct (relay energised in

alarm)

Press SCROLL keyto digital output function

Keep pressing SCROLLbutton to return to list header

Figure 7.2



STEP 3 - GROUPING ALARMS ON A SINGLE OUTPUT

In the previous example one alarm condition is allocated to one output relay.

The 2208e and 2204e controllers allow alarms and events to be grouped on to a single output.These events are shown in the table below.

No change

Clear all existingfunctionsAlarm 1*Alarm 2*Alarm 3*Alarm 4*

* See Table B page 5-13

Figure 7.3

STEP 4 - REMOVING ALARMS FROM AN OUTPUT

Figure 7.4

!

!

Press until you reach the1stsoft alarm you wish to attach toan output, e.g., . The displayreturns to no change after 2 sec.accepting the condition.

Press until you reach the2nd soft alarm you wish to attach tothe output, e.g., !. The displayreturns to no change after 2 sec.accepting the condition.

Repeat for all alarms to beattached to the chosen output

Press once to show clearAfter 2 sec. the lower readoutreverts to no change clearing allevents from the chosen output.

Each time you scroll through thetable of alarms, note that 2decimal points appear confirmingacceptance that the particularalarm has been attached to theoutput, i.e., , !, etc.

Installation and Operation Handbook Understanding the Ordering Code

2208e and 2204e Controller A-1

Appendix AUNDERSTANDING THE ORDERING CODEThe 2208e and 2204e controllers have a modular hardware construction with the option offour outputs and one communications port. Two logic inputs are provided as standard. Inaddition the Model 2204e has an optional plug-in 10A heating output.

The ordering code is in two parts: the hardware code followed by the software code. Thehardware code specifies the hardware build of the controller, and the software code thesoftware configuration. The software code is optional.

UK Default USA DefaultType KT/C 0 to 1000C Type JT/C 32 to 2192F

Hardware code Software code

Model Output 1 Comms DisplayNumber Language units

Supply Output 2 ManualVoltage Sensor

Output 3 input

Rangemin

RangeMax Options

Function

Figure A.1

Understanding the Ordering Code Installation and Operation Handbook

A-2 2208e and 2204e Controller

Hardware code

Modelnumber

Function Supplyvoltage

Output1

Output2

OutputAA

Output3

10Aoutput

Comms Manual DefaultSettings

2208e2204e CC VH LH RC FL FH XX 2YM ENG

AO-AmericanEO-European

Supply voltageVH 85-264Vac

Output 1XX NoneRelay: 2-pinR1 UnconfiguredRU VP raise O/PRH PID heatingFH High alarm 1FL Low alarm 1DB Deviation band 1DL Low dev. alarm 1DH High dev alarm 1Logic: non-isolatedL1 UnconfiguredLH PID heatingM1 PDSIO mode 1(1)M2 PDSIO mode 2(1)TriacT1 UnconfiguredTH PID heatingTU VP raise O/PDC control -isolatedD3 UnconfiguredH6 0-20mA PIO heatingH7 4-20mA PID heatingC6 0-20mA PID coolingC7 4-20mA PID cooling

Output 2XX NoneRelay: 2-pinR1 UnconfiguredRW

VP lower O/P

RC PID coolingFH High alarm 2FL Low alarm 2DB Deviation band 2DL Low dev. alarm 2DH High dev alarm 2Logic: non-isolatedL1 UnconfiguredLC PID coolingTriacT1 UnconfiguredTC PID coolingTW VP lower O/P

Output 3(3)XX NoneRF UnconfiguredRH PID heatingFH High alarm 4FL Low alarm 4DB Deviation band 4DL Low dev. alarm 4DH High dev alarm 4LF PDSIO load failHF PDSIO heater failSF PDSIO SSR failRC PID cooling

FunctionCC ControllerVC Valve

PositionerNF On/Off

Comms2XX None2-wire EIA-4852YM Modbus2YE EI Bisynch4-wire EIA-4222FM Modbus2FE EI BisynchEIA-2322AM Modbus2AE EI BisynchPDSIO input2M4 Fitted unconfig.2RS Setpoint input2NS Nonstandard

Output AA(3)XX NoneRF UnconfiguredRH PID heatingFH High alarm 3FL Low alarm 3DB Deviation band 3DL Low dev. alarm 3DH High dev alarm 3LF PDSIO load failHF PDSIO heater failSF PDSIO SSR failRC PID cooling

10A outputXX NoneR5 fitted unconfiig.RH PID heating

ManualXXX No manualENG EnglishFRA FrenchGER GermanITA Italian

Installation and Operation Handbook Understanding the Ordering Code

2208e and 2204e Controller A-3

Software code

Sensor input Range min Range max Units Logic input1

Logic input2

Options

K 0(note 2)

1000(note 2)

C XX XX CF

Sensor input Range Min Range MinStandard sensors Min C max Min F maxJ J thermocouple -210 1200 -340 2192K K thermocouple -200 1372 -325 2500T T thermocouple -200 400 -325 750L L thermocouple -200 900 -325 1650N N thermocouple -200 1300 -325 2370

R R thermocouple -50 1768 -58 3200S S thermocouple -50 1768 -58 3200B B thermocouple 0 1820 32 3310P Platinel II thermple 0 1369 32 2496C *C thermocouple

W5%Re/W26%Re(Hoskins)

0 2319 32 4200

Z RTD/PT100 -200 850 -325 1562Custom sensors (*replaces C thermocouple)D W3%Re/W25%Re 0 2399 32 4350E E thermocouple -200 1000 -325 18301 Ni/Ni18%Mo 0 1399 32 25502 Pt20%Rh/Pt40%Rh 0 1870 32 33983 W/W26%Re

(Englehard) 0 2000 32 3632

4 W/W26%Re(Hoskins)

0 2010 32 3650

5 W5%Re/W26%Re(Englehard)

10 2300 50 4172

6 W5%Re/W26%Re(Bucose)

0 2000 32 3632

7 Pt10%Rh/Pt40%Rh -200 1800 392 3272Linear inputs Min MaxF -100 to +100mV -999 9999Y 0 to 20mA -999 9999A 4 to 20ma -999 9999W 0 to 5Vdc -999 9999G 1 to 5Vdc -999 9999V 0 to 10Vdc -999 9999

OptionsAdd as many options asrequiredControl optionsDP Direct acting PIDHeating optionPD Power feedback

disabledCooling optionsXX Linear coolingCF Fan coolingCW Water coolingCL Oil cooling

Logic inputs 1 & 2XX DisabledAM Manual mode selectSR Remote setpoint selectS2 Second setpointEH Integral holdAC Alarm acknowledgeSB Standby mode

UnitsC CentigradeF FahrenheitK KelvinX Blank

Understanding the Ordering Code Installation and Operation Handbook

A-4 2208e and 2204e Controller

Notes:

1. PDSIO is a proprietary technique developed by Eurotherm for bi-directionalcommunication over a single pair of wires. There are several operating modes.

In SSRx Load Doctor a logic output delivers a power demand signal to a TE10 solidstate (SSR) relay and the SSR responds with a single load circuit failure message.

In SSRx Enhanced Load Doctor a logic output delivers a power demand signal to anSSR and the SSR responds with the ON state rms load current, and two fault messages -SSR failure or heater circuit failure.

2. Range min and Range max: Enter a numeric value, with a decimal point if required.Thermocouple and RTD sensor inputs will always display over the full operating rangeshown in the sensor input table. The values entered here will act as limits for the setpointhigh and low limit parameters and for alarm setpoints.

3. Alarms are normally supplied configured as non-latching and de-energised-in-alarm, butthey can be configured as latching, energised-in-al

Documents

170 0025