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CentraLine MERLIN NX Series, Installation & Commissioning Instructions, Page: 24 / 30

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MERLIN NX ROOM CONTROLLER – INSTALLATION & COMMISSIONING INSTRUCTIONS 

EN1Z-1035GE51 R0319 

24 

APPENDIX: SENSOR CHARACTERISTICS 

Sensor Input Accuracy 

The controller's internal sensor inputs support NTC10kΩ and NTC20kΩ sensors. The following table lists the typical minimum 
accuracies of the hardware and software for these temperature sensors. 

Table 16. Accuracies of internal NTC10kΩ and NTC20kΩ sensor inputs of the Excel Web II 

range

 

measurement error (excluding sensor characteristics) 

 

NTC10kΩ 

(1

 

NTC20kΩ 

-50 … -20 °C (-58 … -4 °F) 

≤ 5.0 K 

≤ 5.0 K 

-20 … 0 °C (-4 … +32 °F) 

≤ 1.0 K 

≤ 1.0 K 

0 … 30 °C (32 … 86 °F) 

≤ 0.5 K 

≤ 0.3 K 

30 … 70 °C (86 … 158 °F) 

≤ 0.5 K 

≤ 0.5 K 

70 … 100 °C (158 … 212 °F) 

≤ 1.0 K 

≤ 1.0 K 

100 … 130 °C (212 … 266 °F) 

-- 

≤ 3.0 K 

130 … 150 °C (266 … 302 °F) 

-- 

≤ 5.5 K 

150 … 400 °C (302 … 752 °F) 

-- 

-- 

(1

 NTC10kΩ specified for -30 … +100 °C, only. 

 

NOTE:

  This is the accuracy of the internal sensor input (ha software [linearization]), only. This table does not include 

the characteristics of the sensors, themselves (see section “Sensor Characteristics” below). If a different sensor or 
sensor accuracy is required, one may instead use the inputs of, e.g., a connected Panel I/O module. 

 

Recognition of Sensor Failure of Sensor Inputs 

The thresholds at which sensor failures – i.e., sensor breaks (SB) and short-circuits (SC) – are recognized depends upon the 
given sensor type. In the event of a recognized sensor failure, the sensor inputs assume the safety values configured in CARE. 
Table 17 lists the measurement ranges and the corresponding thresholds for the recognition of sensor failure for the various 
different sensor types: 

Table 17. Thresholds for short-circuit (SC) and sensor-break (SB) recognition 

I/O configuration 

measurement range 

recognition thresholds 

2…10 V 

2…10 V / 4…20 mA (without pull-up) 

SC: < 1.5 V / 3 mA; SB: no recognition 

NTC10kΩ 

-50 … +100 °C 

SC: < 20 Ω; SB: < -70 °C 

NTC20kΩ 

-50 … +150 °C 

SC: < 20 Ω; SB: < -70 °C 

PT1000 

-30 … + 400 °C 

SC: < 775 Ω; SB: < -50 °C 

Ni1000TK5000 

-70 … +130 °C 

SC: < 850 Ω; SB: < -30 °C 

 

NOTE:

  In the case of temperatures lying 

outside

 the aforementioned ranges, the lowest/highest value 

within

 the range, instead, 

will be communicated. Thus a temperature of -51 °C will be communicated as “-50 °C.” 

 

Sensor Characteristics 

The characteristics (resistance in relation to temperature) of the sensors and the resultant voltage are listed on the following 
pages. The stated values do not include failures due to: sensor failures; wiring resistance or wiring failures; misreadings due to a 
meter connected to measure resistance or voltage at the input. 
 

Summary of Contents for MERLIN NX Series

Page 1: ...ving connections to from any terminals Table 1 Overview of models OS no CLCM power supply AOs UIs BIs relays A triacs B total no of I Os remarks large housing 198 x 110 x 57 5 mm RL4N 230 VAC 6 10 0 4 4 24 24 hr data retention RL6N 24 VAC 6 10 0 4 4 24 24 hr data retention RL8N 230 VAC 6 6 C 4 D 4 4 24 24 hr data retention supports switch inputs with 24 V pull up for connection of standard light s...

Page 2: ...O3 WM1 20 C2 23 C2 24 WM2 21 34 UI1 36 UI2 37 UI3 39 UI4 35 GND 38 GND 26 AO1 27 24V 28 GND 29 AO2 30 AO3 31 24V 32 GND 33 AO4 41 C1 40 C1 GND 42 BACnet MS TP SERVICE 22 24V 25 GND 53 5 59 52 24 V MODELS 230 V MODELS Fig 3 RSxN dimensions in mm The unit is suitable for mounting on a standard rail on walls as well as in wiring cabinets or fuse boxes Terminal Protection Covers for IP30 In the case o...

Page 3: ...nal blocks capable of carrying either low voltage or line voltage are orange colored The delivery includes a plastic bag containing additional removable terminal blocks for BACnet MS TP and Sylk interfaces The controller is powered by 230 VAC and is equipped with differing numbers of triac outputs relay outputs etc capable of being configured in a variety of ways See Table 1 on page 1 Every contro...

Page 4: ...24V0 Aux power 24 VAC 20 50 60 Hz RS485 Modbus interface corresp GND 26 AO1 Analog Output 1 type 2 type 2 27 24V 24 VAC power for field devices X X 28 GND Ground for AOs X X 29 AO2 Analog Output 2 type 1 type 1 30 AO3 Analog Output 3 type 1 type 1 31 24V 24 VAC power for field devices X X 32 GND Ground for AOs X X 33 AO4 Analog Output 4 type 1 type 1 34 UI1 Universal Input 1 type 1 type 1 35 GND G...

Page 5: ...counter input max 30 Hz pulse ON min 16 ms pulse OFF min 16 ms closed voltage 1 V open voltage 5 V pull up voltage 10 V X X fast binary counter input max 30 Hz pulse ON min 16 ms pulse OFF min 16 ms closed voltage 1 V open voltage 5 V pull up voltage 24 V X 0 2 10 V X X NTC20kΩ X SetPoint and FanSpdSW from CLCM1T 2T 4T 5T 6T111 X NTC10kΩ X PT1000 Ni1000TK5000 X Table 5 Analog output types and char...

Page 6: ...Output of Relay 3 type 1 type 1 type 1 26 27 28 29 C2 C2 24V0 24V Not used 30 31 WM1 WM2 Removable interface for Sylk Bus X X X 32 AO1 Analog Output 1 type 3 type 3 type 4 33 GND Ground for AOs X X X 34 AO2 Analog Output 2 type 3 type 3 type 3 35 24V 24 VAC power for field devices X X X 36 AO3 Analog Output 3 type 1 type 5 37 GND Ground for AOs X X 38 AO4 Analog Output 4 type 1 type 5 39 24V 24 VA...

Page 7: ... A NON RESETTABLE FUSE LINE VOLTAGE N N L L Niagara workbench Fig 8 RS4N example wiring 230 V model 8 7 6 5 4 3 2 1 RJ45 INTERFACE 32 GND 34 UI1 36 UI2 37 UI3 1 TEMP 2 SETP 30 AO3 33 AO4 THERM COOL THERM HEAT CLCM2T WALL MODULE CLCMTR40x TR42x WALL MODULE 5 TN OCCUPANCY CONTACT 31 24V 39 UI4 35 GND 38 GND 40 C1 41 C1 42 GND 7 8 2 3 5 6 4 24V GND 0 10V 24V 24V0 N L ELECTR REHEATER 3 SPEED FAN 10 RO...

Page 8: ...GND2 485 2 485 2 n a 2 J1 J8 RS232 RS485 1 END BIAS MID EAGLEHAWK NX BACnet MS TP Fig 10 RS5N example wiring 24 V model 8 7 6 5 4 3 2 1 RJ45 INTERFACE 20 WM1 21 WM2 26 AO1 32 GND 34 UI1 36 UI2 37 UI3 1 TEMP 2 SETP 29 AO2 30 AO3 33 AO4 THERM COOL THERM HEAT 5 TN OCCUPANCY CONTACT 28 GND 27 24V 31 24V 39 UI4 35 GND 38 GND 40 C1 41 C1 42 GND 7 8 2 3 5 6 4 24V 0 10V ELECTR REHEATER 3 SPEED FAN 10 RO4 ...

Page 9: ... OPTIONAL FUSE TO PROTECT CONTROLLER S INTERNAL TRANSFORMER WHICH HAS ONLY A NON RESETTABLE FUSE LINE VOLTAGE N N L L Niagara workbench Fig 12 RL4N 230 V model example wiring 2 TEMP 3 SETP 4 BYP 6 NC 7 NC 5 LED 8 7 6 5 4 3 2 1 RJ45 INTERFACE 30 WM1 31 WM2 32 AO1 33 GND 35 24V 39 24V 43 24V 44 24V 37 GND 41 GND 46 GND 48 UI2 50 UI3 52 GND 54 UI6 56 UI7 58 GND 60 UI10 47 UI1 49 GND 51 UI4 53 UI5 55 ...

Page 10: ...x TR42x WALL MODULE 22 C F1 230 V LINE VOLTAGE N N L L Niagara workbench CLCM4T 5T 6T111 WALL MODULE Fig 14 RL4N 230 V model example wiring 2 TEMP 3 SETP 4 BYP 6 NC 7 NC 5 LED 87 6 5 43 2 1 RJ45 INTERFACE 30 WM1 31 WM2 32 AO1 33 GND 35 24V 39 24V 43 24V 37 GND 41 GND 46 GND 48 UI2 50 UI3 52 GND 54 UI6 56 UI7 58 GND 60 UI10 47 UI1 49 GND 51 UI4 53 UI5 55 GND 57 UI8 59 UI9 61 GND 34 AO2 36 AO3 38 AO...

Page 11: ...0 VAC 15 10 50 60 Hz 24 VAC 20 3 24V 3 24V N L 4 24V0 4 24V0 24 VAC MODEL 1 24 VAC MODEL 2 CAUTION ALWAYS CONNECT TERM 4 24VAC0 OF EVERY 24 VAC MODEL TO TERM FAILURE TO COMPLY WILL RESULT IN SHORT CIRCUITING 4 24VAC0 OF EVERY OTHER 24 VAC MODEL Fig 17 Multiple 24 VAC models connected to single power supply Communication Signal Terminals All other i e communication signal terminals except for the S...

Page 12: ...on Short press UP Opens the slat angle by a configurable slat angle segment Long press UP Drives the blinds to the UP position Movement may be stopped by briefly pressing any blinds pushbutton Short press DOWN Closes the slat angle by a con figurable slat angle segment Long press DOWN Drives the blinds to the DOWN posi tion Movement may be stopped by briefly pressing any blinds pushbutton Example ...

Page 13: ...s switched OFF once the configurable time is over Staircase lighting with dimming function Light OutManualAddressedCmdBits OutFeedback OutCause EmergencyCmd highest prio MotionBrightnessSensor EmergencyCause Other useful inputs for special cases Parameters LightControlType Hw Terminals Min MaxOutputs DimmingSpeed LockTime Light ON if Occ and Dark Light ON and restart AutoOffTimer if Occ and Dark L...

Page 14: ...hts Commissioning Parameters Light type e g ON OFF dimming staircase etc Assignment of switching outputs relay or triac It is recommended to use coupling relays if triac outputs are used for lighting Please observe the relays constant current and inrush current limitations Coupling relays may be used if the internal relays cannot support the required current Assignment of analog outputs for light ...

Page 15: ... non RxxN con troller with a conflicting address is then added D Time to recognize con flicting MAC address of added non RxxN controller while auto MAC still in progress 50 sec Like C but with the addi tional non RxxN controller having a conflicting MAC address added while auto MAC still in progress E Time for auto MAC when additional RxxN controllers are added in stages while auto MAC still in pr...

Page 16: ...OTE 1 If any of the devices are electrically isolated it is recommended that those devices be connected to signal ground NOTE 2 The 120 Ohm termination resistor must be inserted directly into the terminals of the final BACnet MS TP device NOTE 3 If shielding is used the shielding of each individual bus segment should be separately connected at one end to earth RJ45 Connector for BACnet WiFi Adapte...

Page 17: ...n 4 of the controller s RJ45 interface The max permissible combined current output of these 24 VAC power output terminals is 300 mA Relay Outputs CAUTION Mixing of different voltages e g 24 V and 230 V within the relay block is not allowed The terminal blocks containing the controller s relay outputs are orange Relay output types See Table 3 NOTE If inductive components are to be connected to the ...

Page 18: ...ting 24 VAC to any analog output of the RSxN controller small housing will damage the hardware Free I O Option The limitations including model dependent limitations set forth in Table 2 Table 3 Table 4 Table 5 apply Further limitations are explained below Free Universal Inputs Max 5 BACnet Analog Input Objects Under the free I O option a maximum of five of the MERLIN NX controller s unused UIs are...

Page 19: ... Input output Use as UI1 2 0 10V inputs UI3 NTC20k temperature input UI4 5 binary inputs UI6 counter AO1 0 10V output AO2 0 10V output Triac 1 2 floating actuator outputs Triac 3 4 floating actuator outputs Relay 1 2 3 4 binary outputs In the above example the customer has used the maximum of four analog characteristics No further analog characteristic can be assigned e g relays 1 2 could not be u...

Page 20: ...n no override is currently in effect OVERRIDE OCCUPANCY If the wall module s LED is ON continuously then the wall module s override button or a BACnet MS TP network command has placed the controller into the occupied or override mode but if the override button is again pushed or if a cancellation net work command is received or if the override time expires the controller will return to its schedul...

Page 21: ...oller will revert to the unoccupied mode Standby Mode CLCMTR42xx CONFIGURED TO DISPLAY SYMBOLS CLCMTR42xx CONFIGURED TO DISPLAY ENGLISH FAN FAN CANCEL CANCEL OVERRIDE OVERRIDE OVERRIDE CANCEL OVERRIDE OVERRIDE CANCEL OVR DONE DONE OFF AUTO OFF AUTO H C AUTO H C AUTO H C AUTO H C AUTO 2 0 2 0 2 0 2 0 C C C C OVERRIDE Fig 27 Example standby screens If is displayed the controller is in the standby mo...

Page 22: ...ars first The user can scroll to further screens heating cooling relative humidity and CO2 concentration using the left or right arrow softkey NOTE The user can at any time exit the expanded menu using the upper left softkey below the symbol or the word HOME or by simply waiting approx 60 seconds In the expanded menu the current temperature relative humidity and CO2 concentration can be displayed ...

Page 23: ...tee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and...

Page 24: ...r Failure of Sensor Inputs The thresholds at which sensor failures i e sensor breaks SB and short circuits SC are recognized depends upon the given sensor type In the event of a recognized sensor failure the sensor inputs assume the safety values configured in CARE Table 17 lists the measurement ranges and the corresponding thresholds for the recognition of sensor failure for the various different...

Page 25: ...0 449 2 850 25 10 2 767 26 9 572 2 684 27 9 165 2 603 28 8 777 2 524 29 8 408 2 447 30 8 057 2 372 31 7 722 2 299 32 7 402 2 228 33 7 098 2 159 34 6 808 2 091 35 6 531 2 025 36 6 267 1 962 37 6 015 1 900 38 5 775 1 840 39 5 546 1 781 40 5 327 1 724 41 5 117 1 669 42 4 917 1 616 43 4 726 1 564 44 4 543 1 514 45 4 369 1 465 46 4 202 1 418 47 4 042 1 373 48 3 889 1 329 49 3 743 1 286 50 3 603 1 244 5...

Page 26: ... 2 34 47 0 7 60 2 27 48 0 7 29 2 20 49 0 7 00 2 14 Temp C Resistance k Terminal voltage V 50 0 6 72 2 07 51 0 6 45 2 01 52 0 6 19 1 94 53 0 5 95 1 88 54 0 5 72 1 82 55 0 5 49 1 77 56 0 5 28 1 71 57 0 5 08 1 66 58 0 4 88 1 61 59 0 4 69 1 56 60 0 4 52 1 51 61 0 4 35 1 46 62 0 4 18 1 41 63 0 4 03 1 37 64 0 3 88 1 32 65 0 3 73 1 28 66 0 3 59 1 24 67 0 3 46 1 20 68 0 3 34 1 16 69 0 3 21 1 13 70 0 3 10 ...

Page 27: ...0 479 66 0 1255 0 480 67 0 1259 0 481 68 0 1263 0 483 69 0 1267 0 484 Temp C Resistance Terminal voltage V 70 0 1271 0 486 71 0 1275 0 487 72 0 1278 0 488 73 0 1282 0 490 74 0 1286 0 491 75 0 1290 0 493 76 0 1294 0 494 77 0 1297 0 495 78 0 1301 0 497 79 0 1305 0 498 80 0 1309 0 499 81 0 1313 0 501 82 0 1317 0 502 83 0 1320 0 503 84 0 1324 0 505 85 0 1328 0 506 86 0 1332 0 508 87 0 1336 0 509 88 0 ...

Page 28: ... 287 0 2074 0 769 288 0 2077 0 770 289 0 2081 0 771 290 0 2085 0 773 291 0 2088 0 774 292 0 2092 0 775 293 0 2095 0 776 294 0 2099 0 777 295 0 2102 0 778 296 0 2106 0 780 297 0 2110 0 781 298 0 2113 0 782 299 0 2117 0 784 300 0 2120 0 785 301 0 2124 0 786 302 0 2127 0 787 303 0 2131 0 788 304 0 2134 0 789 305 0 2138 0 791 306 0 2142 0 792 307 0 2145 0 793 308 0 2149 0 794 309 0 2152 0 796 Temp C R...

Page 29: ...1200 4 0 460 44 1205 3 0 462 45 1210 2 0 463 46 1215 1 0 465 47 1220 1 0 467 48 1225 0 469 49 1230 0 471 50 1235 0 473 51 1240 0 474 52 1245 0 476 53 1250 0 478 54 1255 0 480 55 1260 1 0 482 56 1265 1 0 484 57 1270 2 0 485 58 1275 3 0 487 59 1280 3 0 489 60 1285 4 0 491 61 1290 6 0 493 62 1295 7 0 495 63 1300 8 0 496 64 1306 0 498 65 1311 1 0 500 Temp C Resistance Ω Terminal voltage V 66 1316 3 0 ...

Page 30: ...y its Authorized Representative CentraLine Honeywell GmbH Böblinger Strasse 17 71101 Schönaich Germany Phone 49 0 7031 637 845 Fax 49 0 7031 637 740 info centraline com www centraline com Subject to change without notice EN1Z 1035GE51 R0319 Trademark Information BACnetTM is a trademark of ASHRAE Inc LON LONWORKS and Neuron are trademarks of Echelon Corporation registered in the United States and o...

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