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CM-2201 Contents

www.nelsonheaters.com GA2497 Rev. 2

Appendix A – Specifications

Appendix B – Wiring Diagrams

Appendix C – Typical Installation Diagram

Appendix D – Modbus Parameters

Appendix E – RTD Tables

Appendix F – Warranty

Содержание NELSON CM-2201

Страница 1: ...NELSON CM 2201 HEAT TRACE CONTROLLER Installation and Operating Instructions ...

Страница 2: ...t up 4 1 Display Modes 4 2 Password Protection 4 3 Security Levels 5 0 General Operation 7 5 1 Display 5 2 Keypad 5 3 LED Functions 5 4 Monitoring 5 5 Alarm Management 5 6 Soft Start Feature 5 7 Current Limiting Feature 5 8 Ground Faults 6 0 Control Modes 8 6 1 On Off Control 6 2 Proportional Control 6 3 Forced Control Feature 7 0 Programming 9 7 1 Setpoints 7 2 Heater Setup 7 3 System Setup 8 0 C...

Страница 3: ...at Tracing Systems www nelsonheaters com GA2497 Rev 2 Appendix A Specifications 21 Appendix B Wiring Diagrams 22 Appendix C Typical Installation Diagram 23 Appendix D Modbus Parameters 24 Appendix E RTD Tables 29 Appendix F Warranty 38 ...

Страница 4: ...on 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 See Appendix A for additional details 1 1 Getting Started The CM 2201 should be connected to external RTDs power and communication based on Appendix B and C If any problems occur call Nelson technical support or follow th...

Страница 5: ... 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 Two separate RTDs may be utilized to customize the temperature control inputs Several different modes are user selectable as well as the sensor failure operational mode The CM 2201 assembly is...

Страница 6: ... parameter to be changed after the up or down arrow is pressed the controller will ask to type the password and after that the parameter can be changed and saved The password will stay disabled for 15 min then be auto matically re enabled During the 15 min period when the password is disabled other parameters can be changed and saved 3 0 Installation The CM 2201 must be installed only in areas for...

Страница 7: ...gulating cables decreases as these cables get colder which results in higher current draw 5 6 Soft Start Feature Continued This can result in breaker trips if temperatures are very cold and the installed length of cable is high The Soft Start feature operates by initially only energizing the cable for a very short period of time while the current draw may be high during this period the period is u...

Страница 8: ...e monitored temperature reaches the upper limit However the residual heat in the cable continues to transfer to the pipe and this will cause the pipe temperature to increase slightly above the upper limit Similarly there can be some temperature undershoot 6 2 Proportional Control This control method uses the typical proportional control algorithm wherein the cable is cycled on and off at a rate pr...

Страница 9: ... sets the High Temperature Alarm setpoint It must be greater than the maintain temperature plus deadband To disable this alarm set the value to Off When the measured temperature of either RTD A or RTD B if activated is greater than or equal to this setpoint the High Temperature Alarm is activated and a HIGH TEMP ALARM message is added to the alarm stack The alarm deactivates when the temperature f...

Страница 10: ...e circuit may be energized by the manual reset function 1 Display Mode All 2 Range Ground Fault Alarm to 500mA Off 3 Default 50mA 7 1 9 Low Voltage Alarm This value sets the Low Voltage Alarm setpoint It must be less than the high voltage alarm setpoint To disable this alarm set the value to Off When the Line Voltage is less than or equal to this setpoint the Low Voltage Alarm is activated and a L...

Страница 11: ...Display Mode Advanced 2 Range 1 C to 5 C 1 F to 10 F 3 Default 2 C or 5 F 4 Note Deadband is disabled for Proportional Control mode 7 2 6 Control Type This selection determines the type of control method used by the controller either On Off Deadband or Proportional Control The On Off control mode is available for all heating devices Proportional Control mode is only available for series type heati...

Страница 12: ... is based on RTD A but if the temperature from RTD B exceeds the high temperature alarm the heater is turned Off and a high temperature alarm is activated The High Temperature cutoff mode will operate in One RTD mode if the high temperature alarm is turned Off 7 2 10 RTD Operation Continued Functions requiring two RTDs to operate such as Average Lowest Highest and High Temperature Cutoff will oper...

Страница 13: ... required to see the message Advanced only indicates that the display mode must be set to advanced user to view the message 1 Display Mode All 2 Range Normal Advanced 3 Default Advanced 7 3 7 Default Display This function specifies the information that will be displayed when no key has been pressed for the Display Timeout interval as described below VALUE INFORMATION DISPLAYED System status Alarm ...

Страница 14: ...sets controller memory parameters to factory default values If the controllers memory becomes corrupt resetting the module will force the controller to overwrite each register and may correct any problems that exist 1 Display Mode Advanced 2 Range yes no 3 Default no 7 4 Program System Test 7 4 1 System Test This message displays the name of the sub menu when entered 1 Display Mode Advanced 2 Rang...

Страница 15: ... 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 USB to Serial adapter may be used for devices without serial connections Baud Rate User Defined at 1200 2400 4800 9600 or 19200 Data Bits 8 Stop Bits 1 Parity None Device Address User Defined between 1 and 255 8 2 Modbus Registers For...

Страница 16: ...WHT lead of the RTD at the controller should be between 60 and 330 Ω depending on the temperature and the lead resistance Verify that the RTD is wired correctly the heat tracing controllers will always be terminated in the order source RED common WHT sense RED When wiring to the CM2201 the terminals are marked as follows Terminal No Description GND Bus Shield R1 RTD 1 Source RED W1 RTD 1 Common WH...

Страница 17: ... the RTD actually measures This again is normally not a problem since the controller compensates for all but the worst cases of this 3 Unstable Temperature Continued d Check one by one if the all RTD leads are connected to the connector e Lastly it is possible for the RTD itself to fail on an intermittent basis but this failure mode should be considered unusual This kind of failure is probably the...

Страница 18: ... 4 High Current Warning Alarm This warning alarm activates when current levels are greater than the HIGH CURRENT WARNING ALARM setting for the application 9 3 4 High Current Warning Alarm Continued Cause of Warning Alarm Warning Alarm setting too close to normal operating current High in rush current from cold start of self regulating cable Damaged or partially shorted heating cable As built cable...

Страница 19: ... to start the cable due to high current or after attempting to soft start it the controller will trip its output switch off Cause of Alarm Excessive in rush current Incorrect CM 2201 settings Incorrect wiring Damaged cable 9 3 11 Switch Failure This alarm indicates that the controller senses current flow when the output switch should be off Cause of Alarm Some other device energized heat trace Out...

Страница 20: ...ed 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 e Clean front panel with mild soap on damp cloth Do not use any cloth from synthetic material or similar During the cleaning process the front label may charge electrostatically and touching the front panel may gener...

Страница 21: ...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 24VAC to 277VAC Max 0 5 Amps 2 30VDC Max 0 1 Amps Agency Approval for Hazardous Locations cCSAus Class1 DIV 2 Groups A B C D Class 1 Zone 2 IIC Temperature Code T4 135 C ...

Страница 22: ...tact 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 and G Ground terminals as noted ...

Страница 23: ...CM 2201 Appendices 23 2015 Nelson Heat Tracing Systems www nelsonheaters com GA2497 Rev 2 Appendix C Typical Installation Diagram ...

Страница 24: ... 40008 7 2 Deadband in C x per 1 C 1 to 5 40009 8 2 Low Current Alarm x per 0 1A 1 to 300 32767 if Set to Off 40010 9 2 High Current Alarm x per 0 1A 1 to 300 32767 if Set to Off 40011 10 2 Ground Fault Alarm x per 1mA 10 to 500 32767 if Set to Off 40012 11 2 Ground Fault Trip x per 1mA 10 to 500 32767 if Set to Off 40013 12 2 Low Voltage Alarm x per 1V 85 to 280 32767 if Set to Off 40014 13 2 Hig...

Страница 25: ...Fahrenheit 1 Celsius b1 Enable Heater 0 No 1 Yes b2 Manual Override 0 Off 1 On b3 Control Type 0 On Off 1 Proportional b4 b6 RTD Operation 000 Single RTD Mode 001 Backup 010 Average 011 Lowest 100 Highest 101 High Temp Cutout b7 RTD Failure Mode 0 Off 1 On b8 Enable Password 0 Disable 1 Enable b9 Display Mode 0 Normal 1 Advanced b10 b11 Default Display 00 System Status 01 Heater Status 10 Heater T...

Страница 26: ...if RTD Open 32767 if RTD Shorted 40050 49 2 High Temp Alarm in C x per C 32765 if RTD Open 32767 if RTD Shorted 40051 50 2 Heater Power x per 10 40052 51 2 Reserved 40053 52 2 Current x per 0 1A 32766 as Out of Range 40054 53 2 GF Current 40055 54 2 Voltage x per 1V 32766 as Out of Range 40056 55 2 Reserved 40057 56 2 Max Temp in F x per F 32765 if RTD Open 32767 if RTD Shorted 40058 57 2 Max Temp...

Страница 27: ...nt Alarm 8 High Current Alarm 16 GF Alarm 32 GF Trip 64 Low Voltage Alarm 128 High Voltage Alarm 256 Auto Test Alarm 512 Continuity Failure Alarm 1024 SSR Failed Shorted Alarm 2048 RTD A Open Alarm 4096 RTD A Shorted Alarm 8192 RTD B Open Alarm 16384 RTD B Shorted Alarm 32768 Self Check Failure 40072 71 2 Alarm Stack 02 40073 72 2 Alarm Stack 03 40074 73 2 Alarm Stack 04 40075 74 2 Alarm Stack 05 ...

Страница 28: ...02 101 2 Reset Heater On Percentage Set to 1 to Reset 00103 102 2 Reset Statistics Set to 1 to Reset 00104 103 2 Reset Low Temp Set to 1 to Reset 00105 104 2 Reset High Temp Set to 1 to Reset 00106 105 2 Reset Low Current Set to 1 to Reset 00107 106 2 Reset High Current Set to 1 to Reset 00108 107 2 Reset GF Set to 1 to Reset 00109 108 2 Reset GF Trip Set to 1 to Reset 00110 109 2 Reset Low Voltag...

Страница 29: ...05 85 184 25 37 144 42 21 104 58 63 64 74 73 24 90 59 16 106 24 183 25 80 143 42 63 103 59 04 63 75 13 23 90 98 17 106 63 182 26 23 142 43 04 102 59 44 62 75 53 22 91 37 18 107 02 181 26 65 141 43 45 101 59 85 61 75 93 21 91 77 19 107 40 180 27 08 140 43 87 100 60 25 60 76 33 20 92 16 20 107 79 179 27 50 139 44 28 99 60 66 59 76 73 19 92 55 21 108 18 178 27 93 138 44 70 98 61 06 58 77 13 18 92 95 ...

Страница 30: ...135 46 133 150 95 173 165 87 214 181 71 52 120 16 93 135 84 134 151 33 174 166 24 215 182 07 53 120 55 94 136 22 135 151 70 175 166 61 216 182 44 54 120 93 95 136 60 136 152 08 176 166 98 217 182 80 55 121 32 96 136 98 137 152 45 177 167 35 218 183 17 56 121 70 97 137 36 138 152 83 178 167 72 219 183 53 57 122 09 98 137 74 139 153 20 179 168 09 220 183 17 58 122 47 99 138 12 140 153 58 180 168 46 ...

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Страница 34: ...0 6 98 71 45 62 79 42 26 87 34 10 95 21 46 103 04 82 110 81 97 71 67 61 79 64 25 87 56 11 95 43 47 103 25 83 111 03 96 71 89 60 79 86 24 87 78 12 95 65 48 103 47 84 111 24 95 72 11 59 80 09 23 88 00 13 95 87 49 103 69 85 111 46 94 72 33 58 80 31 22 88 22 14 96 09 50 103 90 86 111 67 93 72 56 57 80 53 21 88 44 15 96 3 51 104 12 87 111 89 92 72 78 56 80 75 20 88 66 16 96 52 52 104 34 88 112 10 91 73...

Страница 35: ...226 141 45 262 149 00 298 156 49 119 118 76 155 126 44 191 134 07 227 141 66 263 149 21 299 156 7 120 118 97 156 126 65 192 134 28 228 141 87 264 149 41 300 156 91 121 119 18 157 126 86 193 134 5 229 142 08 265 149 62 301 157 12 122 119 4 158 127 08 194 134 71 230 142 29 266 149 83 302 157 33 123 119 61 159 127 29 195 134 92 231 142 5 267 150 04 303 157 53 124 119 82 160 127 50 196 135 13 232 142 ...

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Страница 39: ...21 1162 322 59 983 290 37 1019 296 94 1055 303 47 1091 309 95 1127 316 38 1163 322 77 984 290 55 1020 297 12 1056 303 65 1092 310 13 1128 316 56 1164 322 95 985 290 73 1021 297 31 1057 303 83 1093 310 31 1129 316 74 1165 323 13 986 290 92 1022 297 49 1058 304 01 1094 310 49 1130 316 92 1166 323 30 987 291 1 1023 297 67 1059 304 19 1095 310 67 1131 317 10 1167 323 48 988 291 28 1024 297 85 1060 304...

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Страница 41: ...N FOR YOUR USE OR PURPOSE This warranty does not extend to any losses or damages due to misuse accident abuse neglect normal wear and tear negligence unauthorized modification or alteration use beyond rated capacity or improper installation maintenance or application To the extent that you or your agents have supplied specifications information representation of operating conditions or other data ...

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