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MASTER

TRACE

MS-2101

OPERATOR’S MANUAL

HEAT TRACING CONTROL

Summary of Contents for MASTERTRACE MS-2101

Page 1: ...MASTERTRACE MS 2101 OPERATOR S MANUAL HEAT TRACING CONTROL ...

Page 2: ...n Wiring 2 4 Alarm Wiring 2 4 3 Getting Started 3 1 Introduction 3 1 Enabling the Heater 3 1 Entering Setpoints 3 1 Testing Heater Alarms 3 3 Monitoring System Status 3 4 4 Front Panel Operation 4 1 Overview 4 1 Operating the Keypad 4 1 Status Lights 4 1 Alphanumeric Display 4 1 Keypad 4 1 Display Contrast 4 1 Heater Numbering 4 1 Startup Messages 4 3 Status Messages 4 3 Flash Messsages 4 4 5 Meas...

Page 3: ... Physical Layer 8 1 Modbus Protocol 8 2 Modbus Memory Map 8 4 Modbus Map Data Format 8 6 9 Commissioning 9 1 Overview 9 1 Requirements 9 1 RTD Input Test 9 1 Heater Voltage and Current Test 9 2 Ground Fault Current Test 9 3 Alarm Output Test 9 3 Override Input Test 9 4 Placing the Controller in Service 9 4 Completing the Installation 9 6 Warranty Back Cover ...

Page 4: ...performance checks to ensure that the device is still operating as intended This can be a tedious labour intensive job A controller is mounted near the pipe being traced to monitor the heater point This controller can communi cate with a single master unit to give complete system monitoring and control from a convenient location Up to 32 controllers can be monitored on a RS485 data highway to a ce...

Page 5: ... Groups F and G Class III Operating Temperature 40 C to 50 C LCD 20 C to 50 C Conformal Coating Boards conformal coated for hostile environments Enclosure Type Nema 4X steel painted black Size 10 Hx8 Wx6 D Features Quick release latches to open door Flat aluminum plate to act as heatsink and mounting flange for mounting on Uni Strut One 3 4 conduit knockout for power and three 1 2 conduit knockout...

Page 6: ...onment y CSA Certified and FM Approved for Hazardous Locations y Weatherproof NEMA 4X Enclosure y 40 C to 50 C OperatingTemperature Range LCD 20 Cto 50 C User Interface y 32 Character LCD Display y LED Indicators on Faceplate y Clear English Language Messages y Intuitive Message Structure y Tactile Keys y Access Security Summary of Features Using This Manual Detailed information relating to switch...

Page 7: ...ans is needed to convert the input voltage to a linear and useful range The CPU applies gain offset and non linearity corrections through a linearization algorithm Current Ground Fault and Voltage Sensing Current transformers and high impedance voltage dividers are used to scale down the incoming heater current ground fault current and voltage All three signals are then passed through a full wave ...

Page 8: ... powerlimit and is time driven where for when you set the softstart period Having the two separate functions is desirable when powerlimit may not be required by the application but softstart is essential to avoid nuisance breaker trips during cold startups The controller applies the softstart function initial startup when the controller is powered up Operation of the softstart function varies depe...

Page 9: ...actor will be increased or decreased in the same direction If current AATD is larger than the AATD in the previous hour the deadband factor will be increased or decreased in the reversed direction At steady state the deadband factor used will fluctuate around a optimum value Figure 1 5 shows the relationship between the proposed heater on duty cycle and the temperature difference for different dea...

Page 10: ...llowing linear equation W aT b where W is the Watt ft at temperature T in degree F a and b are the slope and offset of the linear curve If the Watt per foot value of the heat trace is Ws at setpoint temperature Ts and the Watt per foot value of the heat trace is W at temperature T the offset ratio to be applied to the high low current alarm level is Ws W That is if the high low current alarm level...

Page 11: ...1 8 MS 2101 Chapter 1 Product Overview Figure 1 8 Hardware Block Diagram ...

Page 12: ...ed off When the terminals are closed the heater is controlled by the RTDs unless the heater setpoint is set to off In this case the heater is solely controlled by the override input The logic of this input allows either ambient temperature override or load shedding on multiple controllers terminals 24 and 25 T4 RTD1Aand RTD1B Inputs 3 wire RTD input Ground terminal connects to shield or case Lead ...

Page 13: ...2 2 MS 2101 Chapter 2 Installation Figure 2 2 Power Board Layout Figure 2 1 Main Board Layout ...

Page 14: ...ge of 85 280Vac and rated voltage range 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 See Figure 2 7 If the heating cable has a braid it should be terminated to the ground stud using a ring terminal suitable for 10 stud Ground Connection Connect the controller grounding stud d...

Page 15: ...n fashion The total length of this daisy chain should not exceed 4 000 feet The maximum number of devices connected is 32 to avoid exceeding driver capability You can use commercially available repeaters to increase the number of devices over 32 Avoid star or stub connections Terminate the first and last device in the daisy chain loop Each controller is equipped with a termination jumper as shown ...

Page 16: ...e 2 7 Typical Wiring Diagram Warning Explosion Hazard Substitution of components may impair suitability for Class 1 Division 2 or Class 1 Zone 2 Warning Explosion Hazard Do not disconnect equipment unless power has been switched off or the area is known to be non hazardous ...

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Page 23: ...4 2 MS 2101 Chapter 4 Front Panel Operation Figure 4 2 Contrast Control Figure 4 1 Display Front View ...

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Page 32: ...The MS 2101 has a considerable number of programming setpoints for flexibility Setpoint messages are organized into 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 FAULT TRIP 100mA MESSAGE SOFTSTART 60s MESSAGE POWERLIMIT CURRENT off MESSAGE LOWVOLTAGE ALAR...

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Page 40: ...ctual value is the pre alarm actual value Tracecheck ground fault trip and test alarms are latched only and not user definable MESSAGE NO S3 07 APPLIES TO Interface Module DEFAULT VALUE alarm off VALUE RANGE alarm off alarm on flash on flash off DISPLAY MODE Advanced RESTRICTIONS None This function determines the response of the alarm light output to an alarm The alarm light output is design to dr...

Page 41: ...temp Control temperature MESSAGE NO S3 11 APPLIES TO Interface Module DEFAULT VALUE 60 s VALUE RANGE 5 to 600 s off DISPLAY MODE Advanced RESTRICTIONS None This function sets the length of time from the last key press to automatically return to the Default Display information To disable this function set the value to off MESSAGE NO S3 12 APPLIES TO Interface Module DEFAULT VALUE 3 s VALUE RANGE 1 ...

Page 42: ...dule DEFAULT VALUE disabled VALUE RANGE 1 to 24 hrs disabled on continuously DISPLAY MODE Advanced RESTRICTIONS None This function manually controls of the alarm output for maintenance purposes For normal operation set to disable If you select a period of time the alarm output is forced into alarm state for the selected interval If you select on continuously the alarm output is forced into alarm s...

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Page 60: ...ts on the same test setup Rather than using an adjustable load you can use a fixed load in conjunction with a variac to 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 either 208 or 240VAC 120VAC will work but will not prov...

Page 61: ...wer 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 SETPOINT TEST MANUAL HEATER 5 Change the GF trip alarm to OFF to prevent nuisance trips during the test Reset ground fault trip alarms if necessary 6 Display ground fault current MEAS...

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Page 65: ...PROVIDED FOR IN WRITING IN THIS WAR RANTY EACH CONTROL IS PROVIDED WITHOUT ANY WARRANTY OF ANY KIND EITHER EXPRESSED OR IMPLIED IN PARTICULAR WITHOUT LIMITING THE GENERALITY OF THE FOREGOING THE FOLLOWING IMPLIED 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 TI...

Page 66: ...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 ...

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