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MASTERTRACE MS-2101 OPERATOR’S MANUAL HEAT TRACING CONTROL

MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

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Page 1: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

MASTERTRACE MS-2101

OPERATOR’S MANUAL

HEAT TRACING CONTROL

Page 2: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

MS-2101 Contents

1 Product Overview ......................................................................................................... 1.1Introduction .............................................................................................................................................. 1.1Specifications ........................................................................................................................................... 1.2Summary of Features .............................................................................................................................. 1.3Use of this Manual ................................................................................................................................... 1.3Conventions ............................................................................................................................................. 1.3Shipping Content ...................................................................................................................................... 1.3Theory of Operation ................................................................................................................................. 1.4

2 Installation .................................................................................................................... 2.1Unpacking the Controller .......................................................................................................................... 2.1Control Module ......................................................................................................................................... 2.1Mounting the Controller ............................................................................................................................ 2.3Wire Sizing ............................................................................................................................................... 2.3Conduit and Cabling ................................................................................................................................. 2.3Power Wiring ........................................................................................................................................... 2.3Heater Wiring ........................................................................................................................................... 2.3Ground Connection .................................................................................................................................. 2.3RTD Sensor Wiring .................................................................................................................................. 2.3Communication Wiring ............................................................................................................................. 2.4Alarm Wiring ............................................................................................................................................ 2.4

3 Getting Started.............................................................................................................. 3.1Introduction .............................................................................................................................................. 3.1Enabling the Heater ................................................................................................................................. 3.1Entering Setpoints .................................................................................................................................... 3.1Testing Heater & Alarms........................................................................................................................... 3.3Monitoring System Status ......................................................................................................................... 3.4

4 Front Panel Operation.................................................................................................. 4.1Overview .................................................................................................................................................. 4.1Operating the Keypad .............................................................................................................................. 4.1Status Lights............................................................................................................................................. 4.1 Alphanumeric Display .............................................................................................................................. 4.1Keypad ..................................................................................................................................................... 4.1Display Contrast ....................................................................................................................................... 4.1Heater Numbering .................................................................................................................................... 4.1Startup Messages .................................................................................................................................... 4.3Status Messages ...................................................................................................................................... 4.3Flash Messsages ..................................................................................................................................... 4.4

5 Measured Values .......................................................................................................... 5.1Overview .................................................................................................................................................. 5.1Operating ................................................................................................................................................. 5.2Statistics ................................................................................................................................................... 5.3

6 Setpoint Values............................................................................................................. 6.1Overview .................................................................................................................................................. 6.1Setpoints Entering .................................................................................................................................... 6.2Setpoint Access Security .......................................................................................................................... 6.2Operating ................................................................................................................................................. 6.2Heater Setup ............................................................................................................................................ 6.5System Setup ........................................................................................................................................... 6.8Setpoint Tests ......................................................................................................................................... 6.11

Page 3: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

ContentsMS-2101

7 Alarms ........................................................................................................................... 7.1Overview .................................................................................................................................................. 7.1Trip or Failure Alarms ............................................................................................................................... 7.1Process Alarms ........................................................................................................................................ 7.2Warning Alarms........................................................................................................................................ 7.3Reset Alarms............................................................................................................................................ 7.3

8 Communications .......................................................................................................... 8.1Overview .................................................................................................................................................. 8.1Physical Layer .......................................................................................................................................... 8.1Modbus Protocol ...................................................................................................................................... 8.2Modbus Memory Map .............................................................................................................................. 8.4Modbus Map Data Format ....................................................................................................................... 8.6

9 Commissioning ............................................................................................................ 9.1Overview .................................................................................................................................................. 9.1Requirements ........................................................................................................................................... 9.1RTD Input Test ......................................................................................................................................... 9.1Heater Voltage and Current Test .............................................................................................................. 9.2Ground Fault Current Test ........................................................................................................................ 9.3Alarm Output Test .................................................................................................................................... 9.3Override Input Test ................................................................................................................................... 9.4Placing the Controller in Service .............................................................................................................. 9.4Completing the Installation ....................................................................................................................... 9.6

Warranty .............................................................................................................Back Cover

Page 4: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

1.1

MS-2101 Chapter 1 Product Overview

Introduction

The MS-2101 single-point heat tracing controller uses amicroprocessor and is intended for stand-alone heat traceapplications. It can be for use with mineral-insulated, self-regulating or constant-wattage cable for freeze protection,process control and instrument tracing. The MS-2101 isintended for indoor or outdoor installations in ordinary orhazardous locations.

MS-2101 offers many advantages over other heat tracingcontrol schemes, which generally use some combinationof mechanical thermostats, custom-built panels or pro-grammable controls to provide control, monitoring andalarm functions. Budgetary constraints usually limit thedegree of system fault monitoring to less than optimallevels. This results in periodic costly process shutdownsdue to process or hardware malfunctions. Equipmentreliability concerns often force plant procedures toinclude annual thermostat performance checks to ensurethat the device is still operating as intended. This can bea tedious, labour intensive job.

A controller is mounted near the pipe being traced tomonitor the heater point. This controller can communi-cate with a single master unit to give complete systemmonitoring and control from a convenient location. Up to32 controllers can be monitored on a RS485 data highwayto a centrally located master. By connecting controls to adata highway, the MS-2101 can immediately flag alarmscaused by heat tracing malfunctions, altered setpoints andmonitor actual values from a central location. Each localcontrol is completely independent and will continue tofunction if the master fails or if the communication linkfails. This ensures maximum reliability and minimizesvulnerability in the event of a hardware failure. Addi-tional points can easily be added at any time as easily as amechanical thermostat can be installed. Unlike controlschemes using programmable controllers, no softwaredevelopment is required. The complete system is opera-tional as soon as it is installed.

Figure 1.1 Typical MS-2101 Installation

Page 5: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

1.2

MS-2101 Chapter 1 Product Overview

Specifications

Temperature InputRange: -50 to +500°C (-58 to 932°F)Accuracy: ±2°CRepeatability: ±1°CRTD: Two, 100 ohm platinum, 3-wire RTD

20 ohms maximum lead resistance

Heater SwitchingConfiguration: One circuit, Two-pole, one SCR per

phase, 800 amp 1 cycle inrushRatings: 85-280Vac, 30A continuousLine Frequency: 50 or 60HzCurrent Measurement: 0.1 to 30A 3%±0.2AGF Measurement: 10 to 1000mA 5%±2mAVoltage Measurement: 0 to 300Vac 3%±2V

Control PowerPower Requirement: Control power from heater voltage

85-280VAC, 10VA maxProtection: Control power from heater voltage

protected by 2A fuseMOV transient protection

CommunicationsPort: (1) Serial network connectionType: RS485Protocol: Modbus® RTU.Transmission Rate: 600,1200, 2400, 4800, 9600 baud.Interconnect: 2-wire, shielded, twisted pair.Highway Distance: 4,000 feet without repeater.Modules per Highway: 32 Control Modules.

Measured ValuesTemperature: -50 to 500°C (-58 to 932°F)Minimum Temperature: -50 to 500°C (-58 to 932°F)Maximum Temperature: -50 to 500°C (-58 to 932°F)Heater Current: 0.1 to 60AGround Fault Current: 10 to 1000mAMin. Heater Voltage: 85 to 300VacMax. Heater Voltage: 85 to 300VacPower Consumption: 0 to 1,000 MWhOperating Cost: 0 to $1,000,000.00

User InterfaceDisplay: 16-character x 2-line LCD Alpha-

numeric displayKeypad: 9 tactile keys, polyester faceplate

- Setpoint, measured, status- Message Up, Message Down- Value Up, Value Down- Reset- Store

Contrast: Adjustable by potentiometerPanel Indicators: Power on

Heater onSerial communication activeSystem failProcess alarm

Security: Controller parameters password protected

EnvironmentApprovals: CSA NRTL/C and FM

Class I, Div. 2, Groups A,B,C,DClass I, Zone 2, Groups IICClass II, Div. 2, Groups F and GClass III

Operating Temperature: -40°C to +50°C (LCD: -20°C to +50°C)Conformal Coating: Boards conformal coated for hostile

environments

EnclosureType: Nema-4X steel, painted blackSize: 10”Hx8”Wx6”DFeatures: Quick release latches to open door

Flat aluminum plate to act as heatsinkand mounting flange for mounting onUni-Strut.One 3/4” conduit knockout for powerand three 1/2” conduit knockouts for RTDand signal wiring.

Alarm OutputAlarm: Programmable for NO or NC contact

One Mechanical (dry) contactAlarm Rating: Mechanical contact: 30Vdc/100mA,

120Vac/0.52A, 62.5W MaxAlarm Output: LED Indicator: 5Vdc/50mA

Alarm FunctionTemperature: High Temperature Alarm

Low Temperature AlarmCurrent: Low Current Alarm

High Current AlarmGround Fault Current: Ground Fault Current Alarm

Ground Fault Current TripVoltage: High Voltage Alarm

Low Voltage AlarmHardware: Self-Check Failure

Switch ShortedRTD OpenRTD ShortedContinuity

User-Definable OptionsHeater Status: Enable or DisableHeater Name or Tag: 16 Character AlphanumericTemperature Units: °C or °FProportional Control: on or offDeadband: 1 to 50C° (2 to 90F°)PowerLimit: 0.1 to 30A, offSoftStart: 10 to 999s, offTraceCheck: 1 to 24hrs, offTemperature Setpoint: -50 to 500°C (-58 to 932°F), off, noneHigh Temp Alarm: -50 to 500°C (-58 to 932°F), offLow Temp Alarm: -50 to 500°C (-58 to 932°F), offHigh Current Alarm: 0.1 to 30A, offLow Current Alarm: 0.1 to 30A, offGround Fault Alarm: 10 to 1000mA, offGround Fault Trip: 10 to 1000mA, offHigh Voltage Alarm: 85V to 300V, offLow Voltage Alarm: 85V to 300V, offRTD Definition: Single, Backup, Highest, Lowest,

Average or High Temperature CutoutRTD Fail-safe: Heater On or Heater OffHeat Trace Curve: disable, user, LT3, 5, 8, 10

HLT3, 5, 8, 10, 12, 15, 18, 20Override: On or OffAlarm Contacts: NO or NC for each contactAlarm Light: Alarm on, Alarm off, Flash during alarm

then on, Flash during alarm then off

Ground FaultMaximum Trip Time: 3.7 seconds

Page 6: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

1.3

MS-2101 Chapter 1 Product Overview

Inputs2-RTD Sensors1-Override

MonitoringRTD TemperaturesHeater CurrentHeater VoltageGF Current

AlarmsLow and High Current(Compensated by heat trace curve forSelf-regulating cable)Low and High TemperaturesContinuityGF AlarmGF TripSwitch FailureSensor FailureSelf-Test Failure

Outputs1-Mechanical (dry) Contact1-LED Alarm Indicator

StatisticsMinimum and Maximum TemperaturesMaximum CurrentMaximum Ground FaultMinimum and Maximum VoltageEnergy (MWh)Energy Cost

ControlTemperature (On/Off- Deadband)Temperature -ProportionalPowerLimitingSoftstart

Early Warning (TraceCheck)Low and High CurrentContinuityGF AlarmGF Trip

Communications1-RS485Modbus Protocol

EnvironmentCSA Certified and FM Approved for HazardousLocationsWeatherproof, NEMA-4X Enclosure-40°C to +50°C Operating Temperature Range

(LCD: -20°C to +50°C)User Interface

32 Character LCD DisplayLED Indicators on FaceplateClear, English Language MessagesIntuitive Message StructureTactile KeysAccess Security

Summary of Features

Using This Manual

Detailed information relating to switch and output ratings,accuracy and so forth are detailed in Chapter 1 Specifica-tions. Chapter 2 Installation discusses important mount-ing and wiring issues for reliable operation. Chapter 3Getting Started provides a step-by-step tutorial for a heattrace application. The remainder of this manual should beread and kept for reference to provide the maximumbenefit of the MS-2101.

Conventions

The following conventions are used in this manual.User Changeable Values

Retrieved Data

[ ] Key Press

Shipping Content

MS-2101 Heat Trace ControllerMS-2101 Instruction Manual with Warranty Card

Page 7: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

1.4

MS-2101 Chapter 1 Product Overview

Theory of Operation

Controller functions are controlled by a Intel 80C32 8-bitmicroprocessor that measures all analog signals and logicinputs, control heater output and alarm contacts, andreads all user input including communications and outputsto the faceplate display and LEDs. Consult the hardwareblock diagram in figure 1.8 for details. The remainder ofthis chapter describes the algorithms and operation ofsome of the controller functions.

RTD Sensing

An RTD changes its resistance in a precision relationshipto temperature. This resistance is sensed by passing aconstant current through the RTD and measuring theresulting voltage across the RTD (resistance = voltage/current). The voltage appearing across RTD1 terminals6&8 and RTD2 terminals 10&12 also includes theresistance of the inter-connecting wiring to the RTD,which varies with wire length, size and ambient tempera-ture. By using a three-wire sensing scheme and a leadresistance compensation circuit, the lead resistance iscancelled out to give a voltage proportional to the trueRTD sensor temperature.

RTDs respond in a known but non-linear fashion totemperature, which if uncorrected could lead to signifi-cant errors over the temperature range of the controller.Consequently, some means is needed to convert the inputvoltage to a linear and useful range. The CPU appliesgain, offset and non-linearity corrections through a

linearization algorithm.

Current, Ground Fault and Voltage Sensing

Current transformers and high impedance voltage dividersare used to scale-down the incoming heater current,ground fault current and voltage. All three signals are thenpassed through a full wave rectifier and filter to obtain aDC signal. The DC signals are then converted to digitalvalues by a 10 bit A/D converter before finally beingpassed on to the CPU for analysis.

Each of the three DC signals are sampled 300 times withzero cross synchronization so that the sampling covers anexact span of ten power cycles. This is to ensure thatheater current values are consistently measured when theheater output cycle is modulated by the powerlimit,softstart or proportional control functions.

Powerlimit

The powerlimit function allows the heater to operatebelow its rated power by cycle modulation. Cyclemodulation is accomplished by controlling the integralnumber power cycles into the heater over a periodic timeframe. The MS-2101 uses a ten cycle time frame. Theintegral number of power cycles per time frame is called aduty cycle. With a ten cycle time frame, there are ten dutycycles possible. For each duty cycle, there is a fixedpattern that defines the number of power cycles in whichthe heater is on and off. This is shown in figure 1.2:

Figure 1.2 Cycle Modulation - 10 Cycle Frame

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1.5

MS-2101 Chapter 1 Product Overview

Cycle modulating the current through the heater has theeffect of turning the heater on and off rapidly andtherefore, power output is reduced in the long run. Sincethe switching is zero-cross controlled, the controllerknows exactly when power cycles start and finish. Zero-cross switching also helps reduce power harmonics thatgenerate unnecessary interference.

The heater current (average current) measured by thecontroller while cycle modulation is in effect may beapproximated as follows:

Heater Current at 100% x Duty Cycle = Average Current

When powerlimit is enabled, a powerlimit current is setby the user. This is essentially the desired average current.The powerlimit control algorithm ensures that the actualcurrent will not exceed the powerlimit setting whileoptimizing the maximum duty cycle possible. When theaverage current exceeds the powerlimit setting, the dutycycle is reduce by 10%. When the average current isbelow the powerlimit setting, the duty cycle is increasedby 10%. Before the algorithm increases or decreases theduty cycle, the controller waits until the heater current hasreached steady-state at the current duty cycle setting. Ifthe heater is initially off and the controller calls for heat,the duty cycle starts at zero and increases by 10%increments until it reaches a steady-state value. Thisramping up effect provides a current-driven softstartwhenever the controller calls for heat unlike the softstartfunction, which is time driven.

Softstart

During cold temperature startups with self-regulating heattrace cables, the current driven softstart built into thepowerlimit function may not be long enough to overcomethe inrush current. The softstart function is separate frompowerlimit and is time driven where for when you set thesoftstart period. Having the two separate functions isdesirable when powerlimit may not be required by theapplication but softstart is essential to avoid nuisancebreaker trips during cold startups. The controller appliesthe softstart function initial startup when the controller ispowered up.

Operation of the softstart function varies depending onwhether or not powerlimit and/or proportional control areenabled. When powerlimit and proportional control areoff, operation is simplified. The softstart function usescycle modulation to gradually increase power output overthe softstart period. Since most circuit breakers are thethermal type, the cycle modulated output appears as areduced load to the circuit breaker.

During controller power-up and assuming the controller iscalling for heat, the duty cycle starts at 10% and incre-ments by 10% until full power is reached. Since there areten duty cycle increments, the time that the controllermaintains each duty cycle setting is the softstart setting(softstart period) divided by 10. The softstart operationpowerlimit and proportional control off is shown by thecurve in figure 1.3.

Figure 1.3 Softstart Curve with Powerlimit andProportional Control Disabled

With powerlimit enabled, the only difference is thatinstead of the duty cycle ramping to 100%, it stops at thevalue determined by the powerlimit function such that theaverage current does not exceed the powerlimit currentset by the user. The maximum duty cycle setting isapproximated by the controller initially so that the timeperiod for each duty cycle increment can be determined.The softstart operation with powerlimit enable is shownby the curve in figure 1.4.

Figure 1.4 Softstart Curve with Powerlimit Enabled

When proportional control is turned on, the maximumduty cycle available to the controller is constrained by thepowerlimit current if enabled and softstart.

Page 9: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

1.6

MS-2101 Chapter 1 Product Overview

Proportional Control

Unlike on/off control where the heater is fully on or off,proportional control can partially turn on the heater. Theheater output is proportional to the difference betweenactual temperature and heater setpoint. The relationship isexpressed as follows:

(actual temperature – heater setpoint) x k = heater outputwhere k is the proportional gain

To partially turn on the heater, the proportional controlfunction uses cycle modulation in the powerlimit function.By incorporating cycle modulation into the proportionalcontrol equation, the algorithm is expressed using thefollowing equations:

secondsin timeC)(

C)( peratureheater tem C)( emperaturesetpoint theater

cycle)C/duty (in factor deadband)(cycleduty )(Where

)()(1)(

)()(0)()(

0)(0)(

=°==

°=°=

°==

≥=

<<=

≤=

t∆TTs-T(t)e(t)

T(t)Ts

tDBtd

tDBteiftd

tDBteifDB(t)tetd

teiftd

The deadband factor DB(t) is a time constant thatdetermines the slope of change of the proposed heater onduty cycle with the temperature difference. It is adjustedbetween 1 to 10 each hour to minimize the differencebetween the measured temperature and the temperaturesetpoint. Every hour after power up, the controllercalculates the absolute values of the temperaturedifferences e(t) and sums them during the hour. Then thetotal absolute temperature difference is divided by thenumber of temperature readings taken during the hour.The result is called the Average Absolute TemperatureDifference (AATD) for the hour. If current AATD issmaller than the AATD in the previous hour, the deadbandfactor will be increased or decreased in the samedirection. If current AATD is larger than the AATD in theprevious hour, the deadband factor will be increased ordecreased in the reversed direction. At steady state, thedeadband factor used will fluctuate around a optimumvalue.

Figure 1.5 shows the relationship between the proposedheater on duty cycle and the temperature difference fordifferent deadband factors used.

Figure 1.5 Proportional ControlDuty Cycle vs. Temperature Difference

On/Off Control with Deadband

The default control mode of the controller is deadbandcontrol or simply on/off control with the proportionalcontrol setting turned off. On/off control withoutdeadband (that is deadband set to 0 C° or 0 F°; note thatthese units denote the temperature differential with “°”placed to the right of the unit) means that the heater turnson when actual temperature is below setpoint and turnsoff when above setpoint. However, this causes oscillationswhen the actual temperature is very close to setpoint. Toeliminate oscillations, hysterisis is applied to the on/offcontrol by a deadband value. The on/off control withdeadband operation is described by the hysterisis curve infigure 1.6. Assume that actual temperature is well below(setpoint - deadband setting), the controller calls for heat.As the actual temperature rises, the controller continues tocall for heat until the actual temperature has reached(setpoint + deadband setting). The controller no longercalls for heat and the heater is off. As the actualtemperature cools, the controller does not call for heatuntil the actual temperature reaches (setpoint – deadbandsetting). The hysterisis effect is controlled by themomentum of the actual temperature rather than thetemperature value itself.

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1.7

MS-2101 Chapter 1 Product Overview

Figure 1.6 On/Off Control with Deadband

Heat Trace Curve

Monitoring low and high current alarms on self-regulatingheat tracing cable is difficult. Choosing a high currentalarm setting based on cable characteristics near theheater setpoint temperature will produce nuisance alarmsduring startup. Choosing a low current alarm setting otherthan below the current draw of the cable at heater setpointtemperature produces nuisance alarms. The heat tracecurve function allows you to program the cable character-istics so that the controller can offset the current alarmsettings.

The heat trace curve is described by the following linearequation:

W = aT + b

where, W is the Watt/ft at temperature T (in degree F), aand b are the slope and offset of the linear curve.

If the Watt per foot value of the heat trace is Ws atsetpoint temperature Ts, and the Watt per foot value of theheat trace is W at temperature T, the offset ratio to beapplied to the high/low current alarm level is Ws/W.

That is, if the high/low current alarm level is set to Is, thecurrent draw of the cable at setpoint temperature of Ts,then the high/low current alarm level at operating tem-perature T should be corrected to (Ws/W)*Is to compen-sate the effect of operating temperature on the allowedmaximum/minimum heater current. The heat trace curveis shown in figure 1.7.

If no heat trace curve is used, the offset ratio is set to 1and no correction to the high/low current alarm level isdone.

Figure 1.7 Heat Trace Curve

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1.8

MS-2101 Chapter 1 Product Overview

Figure 1.8 Hardware Block Diagram

Page 12: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

2.1

MS-2101 Chapter 2 Installation

Unpacking the Controller

Check the shipping cartons for damage, or other signs ofrough handling or abuse. If damaged, notify the shippingcarrier at once.Carefully remove the MS-2101 from the shipping box.Save the packing materials in case the unit needs to betransported at a later date.Inspect face plate for damage and check electronics forloose wiring or damage. Report any damage to the carrierat once.

Control Module

See Figure 2.1 Main Board Layout and Figure 2.2Power Board Layout to locate the following:

• S1 Address Enable: When the switch is set to DIS, theModule Number cannot be changed from a master onthe data highway. When set to EN, the Module Numbercan be changed for the next two minutes from a masteron the data highway. During this time the ADDRESSENABLE light is on.

• S2 Program Enable: When the switch is set to DIS,programming is disabled; setpoints and configurationcannot be changed. When set to EN, programming isallowed.

• S3 RS485-120: When the jumper is set to IN, theRS-485 line is terminated by a 120 ohm resistor. Onlythe last Control Module on the data highway should beset to IN.

Terminals: Refer to Figure 2.7 Typical Wiring Diagram,for power, heater and RTD field connections.• T1 Alarm Contact: The mechanical output is rated 30

Vdc/100mA, 120Vac/0.52A, 62.5W Max. Contact isconfigurable for normally open or closed.

• T2 Alarm Light Output: The output is configurable fornormally open, closed or flash. Output is rated 5 Vdc@ 50 mA for an LED type lamp (terminals 18+ and19-).

• T3 Override Input: With the Override function(SETPOINTS\HEATER SETUP\OVERRIDE) set toon, the heater output is affected by the override input.When the terminals are open, the heater is forced off.When the terminals are closed, the heater is controlledby the RTDs unless the heater setpoint is set to off. Inthis case, the heater is solely controlled by the overrideinput. The logic of this input allows either ambienttemperature override or load shedding on multiplecontrollers (terminals 24+ and 25-).

• T4 RTD1A and RTD1B Inputs: 3 wire RTD input.Ground terminal connects to shield or case. Leadresistance compensated. (terminals 6-13).

• T5 Earth Ground: (terminal 1).• T6 Heater Power Input: 85-280Vac/30A max

continuous ( terminals 2 and 3).• T7 Heater Power Output: 85-280Vac/30A max

continuous ( terminals 4 and 5).• T8 Safety Ground: Terminate to ground stud. Termina-

tion of safety ground is required for transient protec-tion circuit on RTD inputs and RS485 serial port tooperate properly (terminal 14).

• T9 Extra A/D Input/Output: Terminals 22 (POUT) and23 (PIN) are the output (+12Vdc) and input (4-20mAdc)connections to a 4-20mA analog signal transmitter.

Status Lights:

• L1 Power: Light is on when control power is present.• L2 Address Enable: Light is on when controller is in

Address Enable mode. Light must be on to allow theModule Number to be changed from a master on thedata highway.

• L3 Transmit: Flashes when data is being transmittedfrom the serial port to the data highway.

• L4 Receive: Flashes when data is being received at theserial port from the data highway.

• L5 Override: Light is on when the Override Input ter-minals are shorted.

Communication Ports:• C1 Interface to Main/Power Board: Connector to

interconnect power and main board via ribbon cable.• C2 Serial Port 1: Connection to an RS-485

data highway via a 2-conductor, shielded, twisted paircable. Maximum Cable length with 32 devices withoutrepeater is 4,000 feet. ( terminals 15+, 16-,17 SHD).

Warning - The ground fault trip function isintended for equipment protection only andshould not be used in place of ground faultprotection for personnel protection wherethis is required.

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2.2

MS-2101 Chapter 2 Installation

Figure 2.2 Power Board Layout

Figure 2.1 Main Board Layout

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2.3

MS-2101 Chapter 2 Installation

Mounting the Controller

Mount the control panel with Unistrut brackets using 1/2”bolts. The Unistrut (or equivalent) mounting allows aircirculation to cool the heat-sink. This is important toensure proper operation of the MS-2101. For optimumreadability, mount with the display at eye level and notin direct sunlight. Mounting dimensions are shown inFigure 2.6.

Wire Sizing

Conduit and Cabling

The MS-2101 comes with one 3/4” and two 1/2” conduitknockouts located on the bottom of the enclosure.Conduit hubs should be NEMA-4X rated, such as T&BH050-0.5 and H075-0.75 or Myers equivalent, to main-tain a watertight seal. Unused knockouts should be sealedusing NEMA-4X rated seals.

Power Wiring

The power input terminals supply power to both the heattrace and controller. Size power input wires appropriatelyto the breaker size and maximum ambient operatingtemperatures. Maximum breaker size is 30A. Connectpower wires to input terminals 2 and 3. See Figure 2.7.

The RTD probe is delicate and should notbe bent or used as a tool to punctureinsulation.

Wiring methods should comply with CanadianElectrical or National Electrical Code andlocal codes. Power and signal wires should notbe run in the same conduit system. Wiringshould be rated at least 90 °C.

)GWA(eziSeriW )A(daoLtnerruC tneibmA.xaM)C°(erutarepmeT

6 03 05

8 03 04

01 42 05

21 61 05

The supply voltage must be within the powersupply range of 85-280Vac and rated voltagerange of the heat trace cable.

Wiring methods must conform to Class I,Division 2 or Class I, Zone 2 requirements.

Heater Wiring

Connect heating cable wiring to terminals 4 and 5. SeeFigure 2.7. If the heating cable has a braid, it should beterminated to the ground stud using a ring terminalsuitable for #10 stud.

Ground Connection

Connect the controller grounding stud directly to aground bus using the shortest, practical path. Use atinned copper, braided bonding cable such as Belden8660. As a guideline, the ground cables should be mini-mum 96 strands, number 34 AWG each.The grounding is not only a safety requirement but isnecessary for the input transient protectors or the RTDand communication inputs to work properly. The transientprotection network is grounded through terminal 14,safety ground, which is bonded to the chassis ground stud.To install the ground connection, remove the outside nut,washer and #10 ring lug provided on the ground stud.Crimp the ground cable onto the ring lug and re-assembleonto the ground stud using the washer and nut.

Figure 2.4 RTD Mounting

RTD Sensor Wiring

RTD sensors should be 3-wire, 100 ohm, platinum to DINstandard 43760. Mount the RTD element on the pipe,away from the heat trace and 30° to 45° from the bottomof the pipe. The total circuit resistance per conductorfrom the RTD to the control panel must be less than 10ohm. Exceeding this resistance will result in a non-lineartemperature measurement. Belden cable 8770 or equiva-lent allows RTDs to be placed up to 1,000 feet from thecontrol panel. Complete all RTD wiring according toFigure 2.7 Typical Wiring Diagram.

Figure 2.3 Ground Connection

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2.4

MS-2101 Chapter 2 Installation

You must install the RTD sensor on the pipe surface orthermal well before the pipe insulation to ensure properthermal contact. The RTD position should be 180° fromthe electric heat trace cable which is the coldest spot ofthe pipe. The RTD sensor may be secured to the pipe byfiber-glass tape. If additional wiring is required for theRTD, shielded 3-lead wire sized 18 or 20AWG must beused for the RTD sensor to minimize the effects of noisepickup. A typical RTD installation is shown in Figure 2.4.

Communication Wiring

The MS-2101 is equipped with a communication port thatprovides continuous monitoring and control from aremote computer, SCADA system or PLC. Communica-tions protocol is Modicon Modbus as discussed in thecommunications chapter.Communication is RS-485 mode where data transmissionand reception are done over a single twisted pair withtransmit and receive data alternating over the same pair ofwires.Shielded twisted pair such as Belden cable 9841 orequivalent is recommended to minimize error from noise.You must observe polarity. For each MS-2101 controller,you must connect A+ terminals together and B- terminalstogether. The shield terminal (labelled SHD) connect toshield wire of the cable.To avoid loop currents, the shield should be grounded atone point only. Connect between controllers in daisy-chain fashion. The total length of this daisy-chain shouldnot exceed 4,000 feet. The maximum number of devicesconnected is 32 to avoid exceeding driver capability. You

can use commercially available repeaters to increase thenumber of devices over 32. Avoid star or stubconnections.Terminate the first and last device in the daisy-chain loop.Each controller is equipped with a termination jumper asshown in Figure 2.2.The controller comes unterminated from the factory(JP401 and JP402 in OUT position). If the controller isthe first or last device, it can be terminated by moving thetwo jumpers (JP401 and JP402) to the IN position.The communication port is powered by an isolated powersupply with opto-coupled data interface to eliminate noisecoupling. In addition, surge protection devices areemployed at the front end of the port to protect againstlightening strikes and ground surge currents. These maycause large, momentary voltage differences betweendevices on the data highway.

Alarm Wiring

The MS-2101 has one passive (mechanical) alarm contactand one active alarm output for driving an LED alarmindicator. The alarm contact is software configurable fornormally open or closed. The alarm LED output issoftware configurable for alarm on, alarm off or flashduring alarm. Refer to Figure 2.7 for alarm output termi-nals.The mechanical (dry) alarm output is rated 30Vdc/10mA,250Vac/0.5A Max.The alarm LED output is rated 5Vdc, 50mA. It can drive a6Vdc LED indicator. Alarm output is designed for interfaceto annunciator, panels, PLC or DCS.

Figure 2.5 Communication Wiring

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2.5

MS-2101 Chapter 2 Installation

Figure 2.6 Mounting Dimensions

Figure 2.7 Typical Wiring Diagram

Warning - Explosion Hazard - Substitutionof components may impair suitability forClass 1, Division 2 or Class 1, Zone 2.

Warning - Explosion Hazard - Do notdisconnect equipment unless power hasbeen switched off or the area is known to benon-hazardous.

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Page 32: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

6.1

MS-2101 Chapter 6 Setpoint Values

5 2 1SETPOINTS:

OPERATING VALUES

[MESSAGE ]

HEATER ENABLED?yes

[MESSAGE ]

HEATER SETPOINT:5°C

[MESSAGE ]

LOW TEMPERATUREALARM: 2°C

[MESSAGE ]

HIGH TEMPERATUREALARM: off

[MESSAGE ]

LOW CURRENTALARM: off

[MESSAGE ]

HIGH CURRENTALARM: off

[MESSAGE ]

GROUND FAULTALARM: 20mA

[MESSAGE ]

TRACECHECK CYCLE:TIME: off

[MESSAGE ]

HEAT TRACE CURVESETUP: disable

[MESSAGE ]go to 3

[SETPOINT] [SETPOINT]

SETPOINTS:HEATER SETUP

[MESSAGE ]

HEATER NAME:NONAME

[MESSAGE ]

OVERRIDE:off

[MESSAGE ]

PROPORTIONALCONTROL: off

[MESSAGE ]

DEADBAND2 C°

[MESSAGE ]

IF RTD FAILSHEATER GOES: off

[MESSAGE ]

RTD DEFINITION:2 RTD’s, lowest

[MESSAGE ]

[SETPOINT] 3

COST PER kWh:$0.05

[MESSAGE ]

SETPOINTS:SYSTEM SETUP

[MESSAGE ]

CHANGE PASSWORD:no

[MESSAGE ]

[SETPOINT]

GF TEST:test now

[MESSAGE ]go to 1

SETPOINTS:SETPOINTS TEST

[MESSAGE ]

HEATER TEST:disabled

[MESSAGE ]

ALARM TEST:disabled

[MESSAGE ]

ALARM CONTACTS:MECH: NO SS: N/A

[MESSAGE ]

Overview

The MS-2101 has a considerable number of programmingsetpoints for flexibility. Setpoint messages are organizedinto groups for easy reference as shown below. Through-out this chapter each group is detailed by section.[SETPOINT] provides entry to the Setpoint Menu which

BAUD RATE 1:1200

[MESSAGE ]go to 5

GROUND FAULTTRIP: 100mA

[MESSAGE ]

SOFTSTART:60s

[MESSAGE ]

POWERLIMITCURRENT: off

[MESSAGE ]

LOW VOLTAGEALARM: 100V

[MESSAGE ]

HIGH VOLTAGEALARM: 120V

[MESSAGE ]go to 2

DISPLAY MODE:normal user

[MESSAGE ]

DEFAULT DISPLAY:system status

[MESSAGE ]

DISPLAY TIMEOUT:60 seconds

[MESSAGE ]

SCAN TIME:3 seconds

[MESSAGE ]

TEMPERATUREUNITS: celcius

[MESSAGE ]

ALARM LIGHT MODE:alarm:off

[MESSAGE ]

Restrictions Advanced User Mode

4

allows you to program and test the Control Module.TheSetpoint Menu is arranged in four groups. Pressing[SETPOINT] twice quickly to access the top of thesecond group; press three times to access the top of thethird group, and so on.

PROGRAM ACCESS:enable

[MESSAGE ]

SET MODULENUMBER: no

[MESSAGE ]go to 4

RESET MODULE? no

[MESSAGE ]

ALARM LATCHINGlow temp yes

[MESSAGE ]

AUTO TUNINGPERIOD: off

[MESSAGE ]

Page 33: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

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Page 34: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

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Page 35: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

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6.9

MS-2101 Chapter 6 Setpoint Values

MESSAGE NO: S3-05 APPLIES TO: Interface ModuleDEFAULT VALUE: MECH:NC VALUE RANGE: MECH:NO SS:N/A

SS:N/A MECH:NO SS:N/AMECH:NC SS:N/AMECH:NC SS:N/A

DISPLAY MODE: Advanced RESTRICTIONS: NoneThis function configures the alarm contacts for normally open (NO) or normallyclosed (NC). MECH refers to the mechanical alarm contact on terminals 20 and 21of the Control Module. SS refers to the solid-state alarm contact that is notavailable on board. In NO mode, the contact closes during alarm condition. In NCmode, the contact opens during alarm condition.

MESSAGE NO: S3-06 APPLIES TO: Interface ModuleDEFAULT VALUE: no VALUE RANGE: low temp, high temp

low current, high currentgf alarm, RTDA failureRTDB failure, switch faillow voltage, high voltagecontinuityyes, no for each alarm

DISPLAY MODE: Advanced RESTRICTIONS: NoneThis function configures each alarm as latching or non-latching. Pressing[STORE] toggles the cursor between alarm selection and yes or no selection.Alarms selected as yes will be latched. Latching alarms will remain on the displayeventhough the alarm condition no longer exist. To clear the alarm, you must press[STATUS] to display the alarm and press [RESET]. When the actual and alarmsetpoint values are displayed, the actual value is the pre-alarm actual value.Tracecheck, ground fault trip and test alarms are latched only and not userdefinable.

MESSAGE NO: S3-07 APPLIES TO: Interface ModuleDEFAULT VALUE: alarm:off VALUE RANGE: alarm:off, alarm:on

flash/on, flash/offDISPLAY MODE: Advanced RESTRICTIONS: NoneThis function determines the response of the alarm light output to an alarm. Thealarm light output is design to drive a 5Vdc LED. If the value is set to alarm off,the alarm light is on in a no alarm condition and turns off when alarms arepresent. The alarm off setting works best with a green LED for fail-safe modewhere loss of power or a burnt out LED generates an alarm condition. Valuealarm on, turns the alarm light off in a no alarm condition and turns on whenalarms are present. Value alarm flash/on flashes the alarm light when alarms arepresent and turns on the alarm light when there are no alarms. Value alarm flash/off flashes the alarm light when alarms are present and turns off the alarm lightwhen there are no alarms.

MESSAGE NO: S3-08 APPLIES TO: Interface ModuleDEFAULT VALUE: Celsius VALUE RANGE: Celsius, FahrenheitDISPLAY MODE: Advanced RESTRICTIONS: Heater Setpoint must not be

off.This function sets the units of measure for temperature. All temperatures aredisplayed in the selected units of either degrees Celsius (°C) or degrees Fahrenheit(°F).

ALARM CONTACTS:MECH:NO SS:N/A

ALARM LIGHT MODE:alarm: off

TEMPERATURE UNITS:Celcius

ALARM LATCHING:low temp yes

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6.10

MS-2101 Chapter 6 Setpoint Values

MESSAGE NO: S3-09 APPLIES TO: Interface ModuleDEFAULT VALUE: advanced userVALUE RANGE: advanced user, normal userDISPLAY MODE: All RESTRICTIONS: NoneThis function determines what messages are displayed. If set to advanced user,all messages are displayed. If set to normal user, only the basic messages aredisplayed. Each message listed in this chapter shows the Display Mode requiredto see the message. Advanced indicates that you must set the display mode toadvanced user to view the message.

MESSAGE NO: S3-10 APPLIES TO: Interface ModuleDEFAULT VALUE: System status VALUE RANGE: See values belowDISPLAY MODE: Advanced RESTRICTIONS: Heater Temp messages are

not displayed if Heatersetpoint is off.

This function specifies the information that will be displayed when no key hasbeen pressed for the Display Timeout interval as described below.VALUE INFORMATION DISPLAYEDSystem status Alarm statusHeater status Heater on or offHeater temp Control temperature

MESSAGE NO: S3-11 APPLIES TO: Interface ModuleDEFAULT VALUE: 60 s VALUE RANGE: 5 to 600 s, offDISPLAY MODE: Advanced RESTRICTIONS: NoneThis function sets the length of time, from the last key press, to automaticallyreturn to the Default Display information. To disable this function, set the value tooff.

MESSAGE NO: S3-12 APPLIES TO: Interface ModuleDEFAULT VALUE: 3 s VALUE RANGE: 1 to 10 sDISPLAY MODE: Advanced RESTRICTIONS: NoneThis function sets the length of time between the display of successive messages.Select a value that is comfortable for the viewing speed of the operator.

MESSAGE NO: S3-13 APPLIES TO: Control ModuleDEFAULT VALUE: 1 VALUE RANGE: 1-250DISPLAY MODE: Advanced RESTRICTIONS: NoneThis function changes the Module Number of the Control Module. If a controlleris to communicate along with other modules to a central computer or display,each module must have a unique address to ensure only one module attempts tocommunicate with the remote display at any time. The address for communicationis the module number.

DEFAULT DISPLAY:System Status

DISPLAY TIMEOUT:60 seconds

SCAN TIME:2 seconds

SET MODULENUMBER: 1

DISPLAY MODE:advanced user

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6.11

MS-2101 Chapter 6 Setpoint Values

MESSAGE NO: S3-14 APPLIES TO: Control ModuleDEFAULT VALUE: no VALUE RANGE: yes, noDISPLAY MODE: Advanced RESTRICTIONS: NoneThis function resets all values of the Control Module to the default values. Selectyes to proceed. Select yes again to confirm.

This message confirms that the Control Module was reset.

MESSAGE NO: S3-15 APPLIES TO: Interface ModuleDEFAULT VALUE: 1200 VALUE RANGE: 600,1200,2400,4800,9600DISPLAY MODE: Advanced RESTRICTIONS: NoneThis function sets the communication baud rate for the RS-485 serial port. Allcontrollers connected to the same data highway must operate at the same baudrate.

MESSAGE NO: S4-01 APPLIES TO: Interface ModuleDEFAULT VALUE: N/A VALUE RANGE: N/ADISPLAY MODE: Advanced RESTRICTIONS: NoneThis message displays the name of the sub-menu when entered.

MESSAGE NO: S4-02 APPLIES TO: Selected Control ModuleDEFAULT VALUE: disabled VALUE RANGE: 1 to 24 hrs, disabled,

on continuouslyDISPLAY MODE: Advanced RESTRICTIONS: NoneThis function manually controls of the alarm output for maintenance purposes. Fornormal operation, set to disable. If you select a period of time, the alarm output isforced into alarm state for the selected interval. If you select on continuously, thealarm output is forced into alarm state until you select disabled. Alarm state isdetermined by ALARM CONFIG function settting.

MESSAGE NO: S4-03 APPLIES TO: Selected HeaterDEFAULT VALUE: disabled VALUE RANGE: 1 to 24 hrs, disabled,

on continuouslyDISPLAY MODE: Advanced RESTRICTIONS: NoneThis function manually overrides heater control for maintenance purposes. Fornormal operation, set to disable. If you select a period of time, the heater is forcedon for the selected interval. If you select on continuously, the heater is forced onuntil you select disabled.

Setpoint Tests

BAUD RATE:1200

SETPOINTSTEST

ALARM TEST:disabled

HEATER TEST:disabled

MODULERESET

yes [STORE]

ARE YOU SURE?no

RESET CONTROLMODULE? no

yes [STORE]

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Page 49: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

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Page 50: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

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Page 51: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

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Page 52: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

8.6

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0021sietarduabfi1=0042sietarduabfi2=0084sietarduabfi3=0069sietarduabfi4=

92004 2 esurerutcafunamrofdevreseR

03004 2 thgiLmralA

mralanasierehtnehwnOfi0=mralanasierehtnehwffOfi1=

ffOesiwrehtomralanasierehtnehwhsalFfi2=nOesiwrehtomralanasierehtnehwhsalFfi3=

13004 2 tcatnoCmralA

A/N=etats-dilosdnaON=lacinahcemfi0=A/N=etats-dilosdnaON=lacinahcemfi1=A/N=etats-dilosdnaCN=lacinahcemfi2=A/N=etats-dilosdnaCN=lacinahcemfi3=

1. For manufacturer use only2. Read only3. Hardcode setting.

subdoMretsigeR setyB emaNelbairaV egnaReulaV

23004 2 noitceleSDTReludoM pukcabrofBDTR,desusiADTRfi0=desuegarevasDTRowtfi1=

desusisDTRowtfognidaerrehgihehtfi2=desusisDTRowtehtfognidaerrewolehtfi3=ffotucerutarepmethgihrofdesusiBDTRfi4=

desusignidaerADTRylnofi5=33004 2 hWkrePtsoCygrenEeludoM )tnecfotinuni(05-1

43004 2 esurerutcafunamrofdevreseR

53004 2 edoCtcudorP 2,1 epytIIKM1SMsieludomfi5= 3

63004 2 esurerutcafunamrofdevreseR

73004 2 esurerutcafunamrofdevreseR83004 2 mralAlaunaMeludoM delbasidsitsetmralafi0=

= x rofnositsetmralafi x )42=<x=<1(sruohylsuounitnocnositsetmralafi52=

Modbus Map Data Format

Module Setup Group:

Module Setting Group:

subdoMretsigeR

xednIeulaV

htgneLsetyB emaNelbairaV

381 281 2 esurerutcafunamrofdevreseR

481 381 2 esurerutcafunamrofdevreseR

581 481 2 mralAtseTFGteseR

681 581 2 egatloVmumixaMteseR

781 681 2 egatloVmuminiMteseR

Page 53: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

111

RR11111 1111111181Ls111s111s1sss

Rs1s1s

Rs11sss1rrsss 11111s1s1L11s 1111s1R1s1s

40031 2 31113233334221 03031233331221312311223321

03x3123333122131231132113x3311123)1)0t)024)

03213123333122131231132121133321321112312331232122221

40040 2 3221341212331132 03032113123211314332232g3231321113332332

03132113123211314132232g3231321113332332

03232113123211314832232g3231321113332332

033321131232113141032232g3231321113332332

034321131232113314332232g3231321113332332

031321131232113314132232g3231321113332332

031321131232113314832232g3231321113332332

0313211312321133141032232g3231321113332332

0383211312321133141232232g3231321113332332

0313211312321133141132232g3231321113332332

03103211312321133141832232g3231321113332332

03113211312321133142032232g3231321113332332

031232113323132333s4232232g3231321113332332

031332113323132331s4232232g3231321113332332

031432113323132338s4232232g3231321113332332

0311321133231323310s4232232g3231321113332332

0311321133231323310a42332232g3231321113332332

0311321133231323311a42332232g3231321113332332

0318321133231323320a42332232g3231321113332332

031132113323132331e4232232g3231321113332332

0320321133231323310e4232232g3231321113332332

0321321133231323311e4232232g3231321113332332

0322321133231323320e4232232g3231321113332332

03233322133221121

032433122332

40041 4 32213412123311323231223123322133221121331132 32g311333121113331111331132133211F31g)3

40043 4 322134121233113234222213123322133221121331132 32g311333121113331111331132133211F31

a-a)aaaeaaaeaaaaaaaaaaaaaaar

a-ayaaeaaaar

y-azaaeaaeaaaaaaaaa-

y-aMaaaaaaaaaa-aaaaaaaaaaaaa

Rs1s1s

Rs11sss1rrsss 11111s1s1L11s 1111ss

40041 4 3111323212112 111ss1rrss:

31g303e311121132311133132231

333333333003e321311g212123

333333333013e312323

323e3113321312323222231

33333333303e3112323222 33

33333333313e313122323222

34g333e3343331121

333333333003e3113343

333333333013e31123343

333333333023e3131334333

333333333033e31123132131111232

313e332t13133111121131

33333333303e330433

33333333313e31004

313e3232133212221133111

33333333303e33113232132

33333333313e323213232122211

313e332t13133333111121131

33333333303e334

33333333313e31433

Rs1ss11rrss:

33g303e3113321312332212121

33333333300013e33211133213311133

333333333333333300103e3322

33333333301013e3321

33333333310103e33210

31g343e31112113231113313221

333333333333003e321311g2121233

3333333333333333333013e312323

333333333333103e3122131221121

313e3123221211123322211232113121321

33333333330e3g10)331130310)3

33333333331e3g10)331130100)3 33

313e332221321321133211221111213122

aaeaaaaaaaaaaaAaaaa)

Page 54: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

111

RR11111 1111111181Ls111s111s1sss

aaeaaaaaaaaaaaaaaaAaaaa)

)yaaeaaaar)

Rs1s1s

Rs11sss11rrsss 11111s1s1L11s

40041 4 311132341123331111133311123)32g311323121113321111312122311331112)2

40041 4 311132341123331111133311123)32g31131121312131112321231131F10331112)2

40011 4 3111323411233112133332213)32g3113231211133211113121223113133)

40013 4 3111323411233112133332213)32g3113112131213111232123113133))

40011 4 3111323411233112133331213)32g311323121113321111312122311332112)

40011 4 3111323411233112133331213)32g311311213121311123212311332112)

40011 4 31113234112333111113332323)32g31132312111332111131212231133232)2

40011 4 31113234112333111113332323)32g31131121312131112321231133232)2

40013 4 31113234112333111113332323211123322213)32g31132312111332111131212231133232)

40011 4 31113234112333111113332323211123322213)32g31131121312131112321231133232)

Rs1s1s

Rs11sss1

Lss1sg

rrsss11111s1s1L11s 1111s1R1s1s

40011 4 32221321321133211221111213122

40011 4 32221321321133211221111213122

40011 2 322213213211321111232t2212111

40012 2 322121311233210303123322121312311223321

031312332212131232123321

40013 2 322121322121111

03x31232213113xF103)33)0)03x3)01000)

03101031232213111sss

03102031232213113ssss

40014 2 1133423221211123432133221111303x31232213113xF103)33)0)03x3)01000)

03101031232213113sss

40011 2 31333423221211123432133221111303x31232213113xF100343)0)03x3)01000)

03101031232213111sss

40011 2 1133311121134321332211113

31133043321113

03x31232213113xF100343)0)03x3)03000)

031001031232213113sss

40011 2 32221321321133211221111213122

40018 2 32221321321133211221111213122

40011 2 31333311121134321332211113

31133043321113

03x31232213113xF100343)0)03x1)03000)

031001031232213113sss

40080 2 32221321321133211221111213122

40081 2 32221321321133211221111213122

40082 2 32221321321133211221111213122

40083 2 32221321321133211221111213122

40084 2 32221321321133211221111213122

40081 2 311111332131341123432133221111303x31232213113x3343)10)03x1)01000)

03100131232213113sss

40081 2 3111113321313432133221111303x31232213113x3343)10)03x1)01000)

03100131232213113sss

40081 2 31321313113311121132211113

31133043321113

03x31232213113xF100343)0)03x1)03000)

031001031232213113sss

40088 2 41212332113221111303x31232213113x3311123)0)03x1)024)

032131232213111sss

40081 2 32212132131232322321103t31232213113t3313123)0)0t)0100)

033222112131232213111111

40010 2 113321312323432133221111303x31232213113x3213123)81)03x1)0300)

0330131232213111sss

a-a)aaaeaaaeaaaaaaaaaaaaaaar

a-ayaaeaaaar

y-azaaeaaeaaaaaaaaa-

y-aMaaaaaaaaaa-aaaaaaaaaaaaa

zaaaaaaaaaaaaaaaAaaaa)

Page 55: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

111

RR11111 1111111181Ls111s111s1sss

Rs1s1s

Rs11sss1

Lss1sg

rrsss11111s1s1L11s 1111s1R1s1s

40011 2 31121111112333111113030312311223321

03131232123321

40012 2 32131123343341111103031233221213111123ss

03131233221213111123sss

40013 2 3211233322121

34g30

030312332212131221312311223321

03131132431233221213122131231132113221331112

032131233221213123113111111111233

313213313212311131221

40014 18 32212131232311213113331223212332212131232312t132111131

122132333122321231133312131121111

40103 2 432111120303123113121sss

0313123113121ss

40104 2 3221321132211113 03x31232213113xF103)33)0)03x3)01000)

40101 2 21212121103x31232213113x322111123)10)03x3)01112)

03100031232213111sss

40101 2 3133321312323432133221111303x31232213113x3213123)100)03x3)0300)

0330131232213111sss

40101 2 32221321321133211221111213122

40108g

401014 322213213211321111232t2212111

a-a)aaaeaaaeaaaaaaaaaaaaaaar

a-ayaaeaaaar

y-azaaeaaeaaaaaaaaa-

y-aMaaaaaaaaaa-aaaaaaaaaaaaa

zaaaaaaaaaaaaaAaaaa)

)yaaeaaaar)

Rs1s1s

Rs11sss11rrsss 11111s1s1L11s 1111s1R1s1s

40110 4 3221213212112 111ss1rrss:

303e3322121323213321222113311

313e3322121321233213311

323e33221213221211113113)1113sss3111ssss)3311

333e33221213113311

343e332212131221311F1223311

313e31121213211311F1223311

313e3311132323213321222113311

313e311131221

Rs1ss11rrss:

31g303e311121132311133132231

333333333003e321311g212123

333333333013e312323

323e3113321312323222231

33333333303e311232322233

33333333313e313122323222

34g333e3343331121

333333333003e3113343

333333333013e31123343

333333333023e31313343233

333333333033e31123132131111232

313e332t3111121131

33333333303e330433

33333333313e31004

313e332t33331111211312121

33333333303e334

33333333313e31433

313e311131221

Rg1111rrss:

33g303e33113321312332212121

33333333300013e33211133213311133

33333333333333300103e3322

33333333301013e3321

33333333310103e33210

31g343e3311121132311133132231

333333333333003e321311g2121233

333333333333333333013e312323

33333333333103e33122131221121

313e3123221211123322211232113121321

33333333330e3g10)331130310)3

33333333331e3g10)331130100)333

313e311131221

1s1sg1rrss:

11131221

Page 56: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

1111

RR11111 1111111181Ls111s111s1sss

Rs1s1s

Rs11sss11rrsss 11111s1s1L11s 1111s1R1s1s

40112 1 3221213432133212112 111ss1rrss:

303e331331232323213

313e3313331232323213

323e331331111211323213

333e3313331111211323213

343e31F2

313e31F2

313e31F2

313e31F2

Rs1ss11rrss:

303e3331111132213131112323213

313e3311111322131323213

323e33433432213112323213

333e33433s32213112323213

343e334334323111323213

313e33433431221323213

313e33433s323111323213

313e33433s31221323213

Rg1111rrss:

303e33111211323332213112323213

313e341212332113311111322131323213

323e34121233211331331111211323213

333e341212332113313331111211323213

343e34121233211331111132213131112323213

313e341212332113111211323332213112323213

313e31F2

313e331333131232323213

1s1sg1rrss:

303e33313333131232323213

313e331F2

323e331F2

333e331F2

343e333331221323213

313e33223231321132213

313e33111111111331321132213

313e3412123321131111111113

11ssg1rrss:

11131221

R1xsg1rrss:

11131221

Rs1s1s

Rs11sss1rrsss 11111s1s1L11s es1ss

40111 2 32212133111113342322121112 )11311112312312113312312312233231112)

40111 2 34334342322121112 )11311112312312113312312312233231112)

40111 2 3433s342322121112 )11311112312312113312312312233231112)

40118 2 32212134133211211232 )113111132211211)

40111 2 32212133111211 )113111131231034)

40120 2 32221321321133211221111213122

40121 2 32221321321133211221111213122

40122 2 31111133213133111211 )11311113123134)

40123 2 32212132131232 )1131111312321312)

40124 2 312g1112331111133213133111211 )11311113123134)

40121 2 32221321321133211221111213122

40121 2 32221321321133211221111213122

40121 2 32221321321133211221111213122

40128g

40131322213213211321111232t2212111

zaaaaaaaaaaaaaeasaaaaaaAaaaa)

)yaaeaaaar)

Page 57: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

1111

RR11111 1111111181Ls111s111s1sss

Rs1s1s

Rs11sss11rrsss 11111s1s1L11s es1ss

40132 2 32t1313342322121112 )11311112312312113312312312233231112)

40133 2 3111313342322121112 )11311112312312113312312312233231112)

40134 2 32t1313332212133111211 )113111131231034)

40131 2 32221321321133211221111213122

40131 2 32221321321133211221111213122

40131 2 32t1313331111133213133111211 )11311113123134)

40138 4 112133332213122133233)32g31132312111332111131212) )11311113123133)

40140 4 112133332213122133233)32g31131121312131112321) )11311113123133)

40142 4 112133331213122133233)32g31132312111332111131212) )1131111312332112)

40144 4 112133331213122133233)32g31131121312131112321) )1131111312332112)

40141 4 112133332213)32g31132312111332111131212) )11311113123133)

40148 4 112133332213)32g31131121312131112321) )11311113123133)

40110 4 112133331213)32g31132312111332111131212) )1131111312332112)

40112 4 112133331213)32g31131121312131112321) )1131111312332112)

40114 4 322121341113413311123)32g31132312111332111131212) )1131111312331112)

40111 4 322121341113413311123)32g31131121312131112321) )1131111312331112)

40118 2 3221213321121123231233411134134132 )113111131233211211)

40111 2 32212134111341332323)32g31132312111332111131212) )113111131233232)

40111 2 32212134111341332323)32g31131121312131112321) )113111131233232)

40113 2 32t131332131232 )1131111312321312)

40114 2 311131332131232 )1131111312321312)

zaaaaaaaaaaaaaaaaaAaaaa)

)yaaeaaaar)

Rs1s1s

Rs11sss11rrsss 11111s1s1L11s 1111s1R1s1s

111 2 322213412123321133111111113343213003111323321212

01332221

111 2 32221331111133213134112343213003111323321212

01332221

111 2 32221341212332113311111332131343213003111323321212

01332221

118 2 3222134121233211311333111211343213003111323321212

01332221

111 2 32221341212332113313333111211343213003111323321212

01332221

110 2 3222134121233211331111133213134112343213003111323321212

01332221

111 2 3222134121233211323111332311121343213003111323321212

01332221

112 2 3222132121121112003111323321212

01332221

113 2 32221332t1313342322121112003111323321212

01332221

114 2 3222133111313342322121112003111323321212

01332221

111 2 32221332t131333111211003111323321212

01332221

111 2 32221321321133211221111213122003111323321212

01332221

111 2 32221321321133211221111213122

zaaaaaaoaaaeayaaaaaaaeaaaaaaaaaaaaAaaaa)

Page 58: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

1111

RR11111 1111111181Ls111s111s1sss

Rs1s1s

Rs11sss11rrsss 11111s1s1L11s 1111s1R1s1s

118 2 32221332t1313331111133213133111211003111323321212

01332221

111 2 32221311213333221003111323321212

01332221

180 2 32221311213333121003111323321212

01332221

181 2 3222134111341331112003111323321212

01332221

182 2 32221321321133211221111213122

183 2 32221321321133211221111213122

184 2 32221321321133211221111213122

181 2 3222133334221343213003111323321212

01332221

181 2 32221332t131332131232003111323321212

01332221

181 2 322213311131332131232003111323321212

01332221

aaeaaaa)aeeaaaaaaaaaaeaoeeaaaaaaaaAaaaa)

Rs1s1s

Rs11sss11rrsss 11111s1s1L11s 1111s1R1s1s

40188 2 311132331331221111

40181 2 42213311132341112221

40110 2 4221313311132341112221

a-a)aaaeaaaeaaaaaaaaaaaaaaar

Page 59: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

111

RR11111 1111111191Ls111ss1ss1s1

L1s111s1

raaaaaaaaaaaaaaaaaaaaeaaaaaaaaaaaaaaaaaaaaaaaagaaaeraaaa

aaaaaaaaaaaaaaaaaaeaaaaaaaaaaaa-aoaaaaaaaaaaaaaaaaea

aaaaaaeaaaaaaaaaagaaaeaaaaaaa-aaaaaaaaaaaaa-aaaaaaaaeaea.aa

aaaaaaaaaaeaaaaaaaa-aaaaaaaaaaaaeaaaaaaaaaaaaaaeaaaeaaae

aaaaaaaaaeaaaaaaaaaaaaaaaaaaaaaaMaaaaaaaa-aaaaaaea-aaaaaa

aaaaaaaaaaaaaaa-aa-aeaeaaaaaaeeaaaaaaaaaaaaaaaaaaaaaaaa-

aaaea-----11n1nss--nn--1ss-aa-aaaaagaeaaaaeaaaaaaaaaaeaaa

eaaaaaaa-aaaa-aaaaa-aeaaaaaaaaaaeaaaeaaraaaaaaaaa-araa

aaaaaeaaaaaa-aaaeaaeaeaaaaaa-aaaaaaaaaaaaaaaaaaaaa

eaaaaa-aeaaaa-----11131d1--1s11---1-1daaaea-----1116

-1--s1s-1%-n11s-

Rss111s1ssss

aaaaaaaaaaaaaaeaaaaaaaaaaaaeaaaaaaaaaaaaaaaaagaaaer

eaaaaaaaaaaaaaaaeaaaaeaaaeaaaaaaaaaaaa-aaaaaaaeaaaaaaaa

aaaaaeaayaDaaaaaaa-aaaaaaaaaaaaaa-aaaaaaeaeaaaa-aaaaaaaa

aaeagaaaaaaaeaaaaaaaaa-aaaaeaaaaaaaaaaeaaaeaaaaaaaa-aaaaaa

aaaaeeaaeaeaeaaaaaaaaa-aaaaaaaeas--aaaad1s-en1d-a-aaaaaaaa

eaaeaaaaraaaaaaeaaaeaaaaaaaaa-aaeaaa-aza-agaa-a-a

aaaaeeaaeaaaaaaeaaaaaaaaaaaaaaaatn--1s11--11-ss-1snn11

1s1-11%1-1a-aaaaaeaaeaeaeaaaaaaaaaaaaaaaaaaaaaaaagaaaer

aaaaaaaaaaaaaaaaaaaeaeaaaaaaaaaeaaaaaataaaeaaa-

ggtgg,gtggegggggg

Daaaaaaaaaraaaaaagaaaaaaaaaaaaaaaaaaaaaaaaaa

aa-aaaaaaaaaaaeaaaaaaaaaaaeaaaaaaaaaa-aaaae

aaaaaaaaeaaaaaaaaaaaaaaaaaa.aar-

oaaaasaaaeaaaaaaaaaaaaeaeaaaa-aaaaaaaeaaraaaaaa

-aaaaaaaeaaaa-aaaaaaaaaaaaae.aaaaaaaaaaaataaaa

eaaa-

aaaaaaaaaaaaaaaaaaaaaaeaaaaaaaaaaaaaaaaaaaaaaa

aagaaaaaaaaaaaaaaaaaaaaeaaaaaaaaa-ahaaaaaaaeaaaa

aaaaaaaa-aaaaaaaaaaaea-aaaaeaaaaaaagaaeaaaaaaaa

-aaaaaaaeaaaaa-aaaea-

-aaaaaaaaaaaa)aaaea)

a- )aaaeaaaaaaaaaaaaaaagaaaaaaaaaaaaaaaa-aaaaaaaaaaeaaa

aaaaasaaaeaaaaaaaeaaaaaaaaaaaaaaa-

a- )aaaeaaaaaaaaaaaaaaaaaaeaa-aaeaaaaaaaaaaaaaaaaaa-aa

eaaaaaaaaasaaaeaaaaaaaeaaaaaaaaaaaaaaa-

y- )aaaeaaaaaaaaaaaaaaaeaaaaaaaeaaaaaaaaaaaraaaaaaaaae

aaaaaaaae-

RRs1Ls11s1Rsss

ttaaaeaaa)

a-aayaaaaaaaaaaDaaaeaaeasaaaaaayaDaaaeaaaaaa

)3 33)1332) )3 33)1332) )3 33)1332)

g40 84121 80 130181 200 111184

g30 88122 10 134110 210 111111

g20 12111 100 138110 220 183111

g10 11101 110 142121 230 181182

0 100100 120 141101 240 110141

10 103110 130 141182 210 114108

20 101111 140 113118 210 111111

30 111111 110 111132 210 201130

40 111114 110 111104 280 204188

10 111131 110 114111 210 208141

10 123124 180 118141 300 212103

10 121101 110 112111

)3 33)1332) )3 33)1332) )3 33)1332)

g40 84121 110 121110 310 111121

g30 81141 110 121112 310 111134

g20 88111 180 131114 380 113131

g10 10181 110 133181 310 111143

0 13103 200 131111 400 111148

10 11122 210 138108 410 111111

20 11131 220 140118 420 181111

30 11111 230 142121 430 183118

40 101114 240 144138 440 181111

10 103110 210 141148 410 181113

10 101101 210 148111 410 181111

10 108122 210 110111 410 111111

80 110138 280 112114 480 113118

10 112113 210 114182 410 111111

100 114118 300 111110 100 111111

110 111183 310 118111

120 118111 320 111104

130 121110 330 113111

140 123124 340 111111

110 121131 310 111123

111111a21nayaaaaaaaaaagaaaaaaaaeaaaaaaaaaaaa))

)D-MayyszaayaD)

111111a211ayaaaaaaaaaagaaaaaaaaeaaaaaaaaaaaa))

)D-MayyszaayaD)

Page 60: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

9.2

MS-2101 Chapter 9 Commissioning

To test RTD Input,1. Disconnect the RTD(s) from the control module

ensuring that the leads are adequately labelled.2. Connect the resistance box as shown in figure 9.3.3. Choose a test temperature for each RTD input and

select corresponding resistances for each of theresistance decade boxes using the table of RTDresistances in figure 9.1 and 9.2. The temperaturesfor each RTD should be different. For the RTDsimulator, set the test temperature of each unit.

4. Turn on power to the controller.5. Using the RTD definition function

(SETPOINT\HEATER SETUP\RTD DEFINITION),set to Two RTDS Average.

6. Display the temperature of each RTD(MEASURED\OPERATING VALUES\RTD-AACTUAL) and (MEASURED\OPERATINGVALUES\RTD-B ACTUAL). The two values shouldagree with the selected temperatures within theaccuracy of the controller and test equipment.

7. If there is a significant discrepancy, consult thefactory for service.

Heater Voltage and Current Test

Equipment:one voltmeterone clamp-on ammeteradjustable load bank (240VAC/10kW)240VAC/30A single phase variac

You can perform voltage and current measurement testson the same test setup. Rather than using an adjustableload, you can use a fixed load in conjunction with a variacto adjust the input supply voltage.To test heater voltage and current,1. Disconnect any field wiring to terminals 2,3,4 and 5.2. Connect the adjustable variac outputs to terminals 2

and 3. Connect the input supply of the variac to either208 or 240VAC. 120VAC will work but will notprovide an effective test range for voltage testing.

3. Connect the load bank to terminals 4 and 5.4. Connect the voltmeter across terminals 2 and 3.5. Connect a clamp-on ammeter around one of the load

cables.6. Set the variac control for 120VAC and turn on the

power.7. Force the heater on by setting the manual heater

function for 1 hour (SETPOINT\SETPOINTTEST\MANUAL HEATER).

8. Display the heater current(MEASURED\OPERATING VALUES\HEATERCURRENT).

9. Adjust the variac control within the voltage range ofthe controller and compare the readings of thedisplay with the ammeter.

10. Display the heater voltage(MEASURED\OPERATING VALUES\HEATERVOLTAGE).

11. Adjust the variac control to take another set ofreadings. Repeat until enough readings are taken tocover the range. Current and voltage readings shouldbe within the accuracy of the controller and testequipment.

12. If there is a significant discrepancy, consult theFigure 9.3 Test Setup

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9.3

MS-2101 Chapter 9 Commissioning

factory for service.

Ground Fault Current Test

Internal GF Test

The controller comes with a ground fault test functionthat can be executed from the display(SETPOINTS\SETPOINT TEST\GF TEST).To run this test,1. Select start now2. Go to ground fault current(MEASURED\OPERATING VALUES\GROUNDFAULT CURRENT).A ground fault current appears for the duration of the test.If the controller does not see a ground fault current, it willinitiate a GF CT failure alarm indicating the ground faultmonitoring function is not working. The GF test functiononly verifies for operation and does not check for meas-urement accuracy. To check for accuracy, the next testprocedure applies.

External GF Test

Using the same test setup for voltage and current meas-urement tests, add the following components to the testsetup.

Equipment:One 240R/250W power resistor (load bank used inprevious procedure may be disconnected and used inplace)One AC ammeter (0-1A range)

To test ground fault current,1. Disconnect the load bank used in the previous test

and reconfigure to 240R if possible.2. Connect the load bank or power resistor to terminals

2 and 5 of the controller with the ammeter in series.3. Set the variac control for 120VAC and turn on the

power.4. Force the heater on by setting the manual heater

function for 1 hour (SETPOINT\SETPOINTTEST\MANUAL HEATER).

5. Change the GF trip alarm to OFF to prevent nuisancetrips during the test. Reset ground fault trip alarms ifnecessary.

6. Display ground fault current(MEASURED\OPERATING VALUES\GROUNDFAULT CURRENT).

7. Adjust the variac control to simulate various levels ofground fault currents through the load and comparereadings from the display with the ammeter. Readings

should be within the accuracy of the controller andtest equipment.

8. If there is a significant discrepancy, consult thefactory for service.

9. Disconnect the load bank after the test.

Alarm Output Test

Mechanical Alarm

Equipment:one 120VAC/100W Incandescent lamp with socket base

To test mechanical alarm contact,1. Connect one lead of the lamp to terminal 20 of the

controller.2. Connect 120VAC to open lead of the lamp and

terminal 21.3. Power on the controller.4. Ensure all alarms are turned off so that the controller

is in no alarm condition.5. Set SETPOINTS\SYSTEM SETUP\ALARM

CONTACTS to MECH:NO SS:N/A. Lamp should beoff.

6. Force alarm on by setting SETPOINT\SETPOINTTEST\ALARM TEST to on for 1 hour.

7. Lamp should be on.

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Page 65: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

Warranty

The manufacturer warrants each control that it manufactures to be free fromdefective material or workmanship for a period of 12 months from date ofpurchase.Under this warranty, the obligation of the manufacturer is limited to repairing orreplacing the defective control at its option, when returned to the manufactur-er’s factory with shipping charges prepaid.If failure has been caused by misuse, incorrect application or alteration of thecontrol, this warranty will be void.UNLESS SPECIFICALLY PROVIDED FOR IN WRITING IN THIS WAR-RANTY, EACH CONTROL IS PROVIDED WITHOUT ANY WARRANTY OFANY KIND EITHER EXPRESSED OR IMPLIED. IN PARTICULAR, WITHOUTLIMITING THE GENERALITY OF THE FOREGOING, THE FOLLOWINGIMPLIED WARRANTIES AND CONDITIONS ARE EXPRESSLY DIS-CLAIMED:

a). ANY IMPLIED WARRANTY OR CONDITION THAT THE CON-TROL WILL MEET YOUR REQUIREMENTS.

b). ANY IMPLIED WARRANTY OR CONDITION THAT THE OPERA-TION OF THE CONTROL WILL BE UNINTERRUPTED ORERROR FREE; AND

c). ANY IMPLIED WARRANTY OR CONDITION OFMERCHANTABILITY OR FITNESS FOR A PARTICULARPURPOSE.

The user shall be made aware that if the equipment is used in a manner notspecified by the manufacturer, the protection provided by the equipment maybe impaired.

Page 66: MASTERTRACE MS-2101 - Nextron1.1 MS-2101 Chapter 1 Product Overview Introduction The MS-2101 single-point heat tracing controller uses a microprocessor and is intended for stand-alone

MASTERTRACE TM

HEAT TRACING CONTROL

P/N: 1501-0009 MS-2101 03/18 Printed in Canada

Nextron Limited #14, 6120 - 11th Street S.E., Calgary, Alberta, T2H 2L7, Tel:(403) 735-9555, Fax: (403) 735-9559