Emerson NELSON CM-2201 Installation And Operating Instructions Manual
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Emerson NELSON CM-2201 Installation And Operating Instructions Manual

Emerson NELSON CM-2201 Installation And Operating Instructions Manual

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NELSON
CM-2201
™
HEAT TRACE CONTROLLER
Installation and Operating Instructions

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Summary of Contents for Emerson NELSON CM-2201

  • Page 1 NELSON CM-2201 ™ HEAT TRACE CONTROLLER Installation and Operating Instructions...

  • Page 2: Table Of Contents

    Contents CM-2201 1.0 Introduction 1.1 Getting Started 2.0 General Application Information 3.0 Installation 3.1 Selecting Installation Location 3.2 Mounting 3.3 Wiring 4.0 Initial Set-up 4.1 Display Modes 4.2 Password Protection 4.3 Security Levels 5.0 General Operation 5.1 Display 5.2 Keypad 5.3 LED Functions 5.4 Monitoring 5.5 Alarm Management...
  • Page 3 CM-2201 Contents Appendix A – Specifications Appendix B – Wiring Diagrams Appendix C – Typical Installation Diagram Appendix D – Modbus Parameters Appendix E – RTD Tables Appendix F – Warranty ©2015 Nelson Heat Tracing Systems www.nelsonheaters.com GA2497 Rev. 2...

  • Page 4: Introduction

    Introduction CM-2201 1.0 Introduction The Nelson Heat Trace CM-2201 is designed to monitor and control one heating circuit in ordinary and Class I, Division 2, Class I, Zone 2, and Zone 2 hazardous locations. This manual provides information pertaining to the installation, operation, testing, communications and maintenance of this device.

  • Page 5: General Application Information

    CM-2201 Application Information 2.0 General Application Information The CM-2201 is designed to operate on input voltages between 100 and 277 Vac and 50/60 Hz. Load switching is handled by a 2-Pole solid-state relay and can control resis- tive loads of 30A continuous @ 40°C ambient. The CM-2201 is designed to control one heating circuit by monitoring one or two temperature inputs via industry standard 3-wire, 100Ω, Platinum RTDs.

  • Page 6: Installation

    Installation and Initial Set up CM-2201 3.0 Installation 4.0 Initial Set-Up The CM-2201 must be installed only in areas for which it Upon initial power-up, the CM-2201 display will run self- has been approved and in accordance with all applicable check, display the software version, then the main program will start.

  • Page 7: General Operation

    CM-2201 General Operation 5.1 Display 5.6 Soft-Start Feature Continued The CM-2201 utilizes a 2 line x 16 character This can result in breaker trips if temperatures are very cold alphanumeric display, viewable from the front keypad. The and the installed length of cable is high. The Soft-Start top line is reserved for the function or operation and the feature operates by initially only energizing the cable for a bottom line displays the value range.

  • Page 8: Control Modes

    Control Modes CM-2201 6.0 Control Modes The CM-2201 allows the user to select different control modes based on their individual process control parameters. 6.1 On-Off Control This control method simply energizes the cable until the actual monitored temperature rises to the setpoint value plus half the deadband value (upper limit).

  • Page 9: Programming

    CM-2201 Programming 7.0 Programming 7.1.4 High Temp Alarm This value sets the High Temperature Alarm setpoint. It must be greater than the maintain temperature plus 7.1 Program - Setpoints deadband. To disable this alarm set the value to “Off”. When the measured temperature of either RTD A or RTD B 7.1.1 Setpoint Value (if activated) is greater than or equal to this setpoint, the This message displays the name of the sub-menu when...

  • Page 10: Heater Setup

    Programming CM-2201 7.1.6 High Current Alarm Continued 7.1.9 Low Voltage Alarm Continued If Proportional Control or Current Limiting is enabled, all 1. Display Mode: All current measurements will be scaled to 100% power, based 2. Range: 85VAC to High Voltage Alarm, Off 3.
  • Page 11 CM-2201 Programming 7.2.3 Heater ID 7.2.6 Control Type This selection allows for user defined Heater Identification. This selection determines the type of control method used It provides a unique, identifiable tag or label for each heater by the controller: either On-Off (Deadband), or Proportional circuit.

  • Page 12: System Setup

    Programming CM-2201 7.2.10 RTD Operation Continued 7.2.9 Auto Test Cycle Functions requiring two RTDs to operate, such as Average, This value sets the frequency at which the Auto Test Cycle is Lowest, Highest and High Temperature Cutoff, will operate activated. Auto Test is a feature that exercises the system in One RTD mode if one of the two RTDs fail.

  • Page 13: Communications 15

    CM-2201 Programming 7.3.3 Change Password 7.3.7 Default Display This selection allows the user to change the default pass- This function specifies the information that will be word. The user is prompted to enter the old password, press displayed when no key has been pressed for the Display [ENTER].
  • Page 14 Programming CM-2201 7.3.11 Reset Module 7.4.4 Ground Fault Test This selection resets controller memory parameters to This function will test the ground fault trip function of the factory default values. If the controllers memory becomes controller to ensure proper operation. When selected, the corrupt, resetting the module will force the controller to controller will generate an artificial ground fault current;...

  • Page 15: Communications

    CM-2201 Communications 8.0 Communications The Nelson Heat Trace CM-2201 supports a subset of the Modbus RTU protocol format that provides monitoring, ® programming, and control functions using Read (03) and Write (05-06) register commands. 8.1 General Information Serial Port: Select the serial port that corresponds to your RS-485 adapter.

  • Page 16: Troubleshooting

    Troubleshooting CM-2201 9.0 Troubleshooting Terminal No. Description GND Bus Shield 9.1 Operator Checks RTD 1 Source (RED) Upon receipt of the controller, or to check the controller for RTD 1 Common (WHT) an indication of normal operation, follow the operational RTD 1 Sense (RED) procedures shown below.
  • Page 17 CM-2201 Troubleshooting 2. Temperature Verification Continued 3. Unstable Temperature Continued To verify the Controller: d) Check, one by one, if the all RTD leads are connected to TURN THE POWER TO THE CONTROLLER OFF BEFORE the connector. PROCEEDING! e) Lastly, it is possible for the RTD itself to fail on an intermittent basis but this failure mode should be a) Disconnect the RTD wiring from the input terminals.
  • Page 18 Troubleshooting CM-2201 9.3.1 High RTD 1/ RTD 2 Temperature Reading 9.3.4 High Current Warning/Alarm Continued This warning/alarm appears when the temperature exceeds Cause of Warning/Alarm: the HIGH RTD WARNING/ALARM temperature setting. • Warning/Alarm setting too close to normal operating current Cause of Warning/Alarm: •...
  • Page 19 CM-2201 Troubleshooting 9.3.11 Switch Failure 9.3.7 GFI Alarm Continued This alarm indicates that the controller senses current flow Cause of Alarm: when the output switch should be off. • Trip setting too close to normal leakage current • Damaged cable insulation and/or moisture present •...

  • Page 20: Maintenance

    Maintenance CM-2201 10.0 Maintenance The CM-2201 should be regularly maintained as follows: a) Check fit of door gasket and adjust as required. Clean door gasket. b) Verify that moisture is not entering enclosure; repair as required. c) Check terminals to ensure connections are secure. d) Check wiring for any signs of overheating.
  • Page 21 CM-2201 Appendices Appendix A – Specifications Model: CM-2201 Rating: 110 – 277 Vac, 30 Amps (Solid State Relays) Maximum Current: 30 Amps Frequency: 50 or 60 Hz Switching: Solid State Relay (STDP) Normally Open (NO) Enclosure: NEMA 4X Alarm Outputs: 1.
  • Page 22 Appendices CM-2201 Appendix B - Wiring Diagram Notes: 1. Solid State Contact 2. Install Jumper at JP1 (120 OHM Resistor) on both terminals if CM-2201 is last device on network. Else install jumper on one terminal only of JP1. 3. If “Force “ feature is activated by external “dry contact”, use “+5V” and “IN” terminals; Ground connection is not required. If activated by external voltage signal, use “IN”...

  • Page 23: Nelson Heat Tracing Systems Www.nelsonheaters.com Ga2497 Rev. 2

    CM-2201 Appendices Appendix C - Typical Installation Diagram ©2015 Nelson Heat Tracing Systems www.nelsonheaters.com GA2497 Rev. 2...
  • Page 24 Appendices CM-2201 Appendix D D.1 Module Setup Group (Read/Write) Modbus Index Length Variable Name Description/Value Range Register Value Bytes = x per 1°F (-58 to +932) 40001 Maintain Temp in °F = 32766 if Set to None = 32767 if Set to Off = x per 1°C (-50 to +500) 40002 Maintain Temp in °C...
  • Page 25 CM-2201 Appendices D.1 Module Setup Group (Read/Write) Continued Modbus Index Length Variable Name Description/Value Range Register Value Bytes = x per 1 Hour (1 to 24) 40024 Heater Test = 32764 if Set to Disable =32765 if Set to Continuously 40025 Reserved 40026...
  • Page 26 Appendices CM-2201 D.2 Module Monitoring Group (Read Only) Modbus Index Length Variable Name Description/Value Range Register Value Bytes = x per °F 40045 System Temp in °F = 32765 if RTD Open = 32767 if RTD Shorted = x per °C 40046 System Temp in °C = 32765 if RTD Open...
  • Page 27 CM-2201 Appendices D.2 Module Monitoring Group (Read Only) Continued Modbus Index Length Variable Name Description/Value Range Register Value Bytes = x per 1V 40064 Min Volt = 32766 as Out of Range = x per 1MWh 40065 Energy = 32766 as Out of Range = x per $0.01 40066 Cost...
  • Page 28 Appendices CM-2201 D.3 Module Reset Group (Write Only) Modbus Index Length Variable Name Description/Value Range Register Value Bytes 00092 Acknowledge All = Set to 1 to Reset 00093 Reset Max Temp = Set to 1 to Reset 00094 Reset Min Temp = Set to 1 to Reset 00095 Reset Max Current...
  • Page 29 CM-2201 Appendices Appendix E - RTD Tables Temperature Conversion Platinum Resistance (-200°C to 239°C) Temperature Coefficient - 0.00385 Ohms/Ohm/°C °C Ohms °C Ohms °C Ohms °C Ohms °C Ohms °C Ohms -200 18.49 -160 35.53 -120 52.11 68.33 84.27 100.00 -199 18.93 -159...
  • Page 30 Appendices CM-2201 Appendix E - RTD Tables Temperature Conversion Platinum Resistance (-200°C to 239°C) Temperature Coefficient - 0.00385 Ohms/Ohm/°C °C Ohms °C Ohms °C Ohms °C Ohms °C Ohms °C Ohms 113.61 129.37 144.93 160.30 175.10 190.09 113.99 129.75 145.31 160.67 175.47 114.38...
  • Page 31 CM-2201 Appendices Appendix E - RTD Tables Temperature Conversion Platinum Resistance (240°C to 629°C) Temperature Coefficient - 0.00385 Ohms/Ohm/°C °C Ohms °C Ohms °C Ohms °C Ohms °C Ohms °C Ohms 190.45 204.16 217.70 231.07 244.28 257.32 190.81 204.52 218.05 231.42 244.62 257.66...
  • Page 32 Appendices CM-2201 Appendix E - RTD Tables Temperature Conversion Platinum Resistance (240°C to 629°C) Temperature Coefficient - 0.00385 Ohms/Ohm/°C °C Ohms °C Ohms °C Ohms °C Ohms °C Ohms °C Ohms 270.19 280.56 290.83 300.98 311.02 320.95 270.52 280.90 291.16 301.31 311.34 321.27...
  • Page 33 CM-2201 Appendices Appendix E - RTD Tables Temperature Conversion Platinum Resistance (-328°F to 1220°F) Temperature Coefficient - 0.00385 Ohms/Ohm/°F °F Ohms °F Ohms °F Ohms °F Ohms °F Ohms °F Ohms -328 18.52 -292 27.10 -256 35.54 -220 41.80 -184 52.11 -148 60.26...
  • Page 34 Appendices CM-2201 Appendix E - RTD Tables Temperature Conversion Platinum Resistance (-328°F to 1220°F) Temperature Coefficient - 0.00385 Ohms/Ohm/°F °F Ohms °F Ohms °F Ohms °F Ohms °F Ohms °F Ohms -112 68.33 76.33 84.27 92.16 100.00 107.79 -111 68.55 76.55 84.49 92.38...
  • Page 35 CM-2201 Appendices Appendix E - RTD Tables Temperature Conversion Platinum Resistance (-328°F to 1220°F) Temperature Coefficient - 0.00385 Ohms/Ohm/°F °F Ohms °F Ohms °F Ohms °F Ohms °F Ohms °F Ohms 115.54 123.24 130.90 138.51 146.07 153.58 115.76 123.46 131.11 138.72 146.28 153.79...
  • Page 36 Appendices CM-2201 Appendix E - RTD Tables Temperature Conversion Platinum Resistance (-328°F to 1220°F) Temperature Coefficient - 0.00385 Ohms/Ohm/°F °F Ohms °F Ohms °F Ohms °F Ohms °F Ohms °F Ohms 163.12 168.48 175.86 183.19 190.47 197.71 161.26 168.68 176.06 183.39 190.67 197.91...
  • Page 37 CM-2201 Appendices Appendix E - RTD Tables Temperature Conversion Platinum Resistance (-328°F to 1220°F) Temperature Coefficient - 0.00385 Ohms/Ohm/°F °F Ohms °F Ohms °F Ohms °F Ohms °F Ohms °F Ohms 204.90 212.05 219.15 226.21 233.21 240.18 205.10 212.25 219.35 226.40 233.41 240.37...
  • Page 38 Appendices CM-2201 Appendix E - RTD Tables Temperature Conversion Platinum Resistance (-328°F to 1220°F) Temperature Coefficient - 0.00385 Ohms/Ohm/°F °F Ohms °F Ohms °F Ohms °F Ohms °F Ohms °F Ohms 247.09 253.96 260.78 267.56 274.29 280.98 247.28 254.15 260.97 267.75 274.48 281.16...
  • Page 39 CM-2201 Appendices Appendix E - RTD Tables Temperature Conversion Platinum Resistance (-328°F to 1220°F) Temperature Coefficient - 0.00385 Ohms/Ohm/°F °F Ohms °F Ohms °F Ohms °F Ohms °F Ohms °F Ohms 287.62 1004 294.21 1040 300.75 1076 307.25 1112 313.71 1148 320.12 287.8...
  • Page 40 Appendices CM-2201 Appendix E - RTD Tables Temperature Conversion Platinum Resistance (-328°F to 1220°F) Temperature Coefficient - 0.00385 Ohms/Ohm/°F °F Ohms °F Ohms °F Ohms 1184 326.48 1200 329.29 1216 332.09 1185 326.65 1201 329.46 1217 332.27 1186 326.83 1202 329.64 1218 332.44...
  • Page 41 Appleton Grp LLC d/b/a Appleton Group. The Appleton, O-Z/Gedney, SolaHD, EasyHeat, Nelson and Emerson logos are registered in the U.S. Patent and Trademark Office. EasyHeat, Inc. is a wholly owned subsidiary of Appleton Grp LLC. All other product or service names are the property of their registered owners.

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