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S M ART  T EMP ER ATUR E MONITORI NG  R EL AYS 

 
 

STATUS 

Approved 

SECURITY LEVEL 

Public 

DOCUMENT ID. 

2CDC112285M0201 

REV. 

B 

LANG. 

en 

PAGE 

14/42 

© Copyright 2020 ABB. All rights reserved. 

 

4.1.1.

 

Factory 1 - Motor protection with PT100 sensors 

This profile allows motor supervision with two escalation steps. The first thresh-
old is configured as a pre-waging at 130 °C for all measuring circuits. When the 
threshold is reached, relay 1 will trip. The second threshold controls the switch 
off at a temperature of 150 °C. Relay 2 will trip if the threshold value is measured 
by any of the three measuring circuits. In case of sensor errors in any of the 
three sensor circuits (short circuit, open wire) relay 3 is triggered immediately. 

The relays energize when the measured temperature is below the threshold and 
the set hysteresis value. The hysteresis is set to 10 K for the pre-warning and 5 K 
for the switch off threshold.  

The relays operate in closed circuit principle. Automatic reset is active for all out-
put relays.  

The operating logic and the settings are displayed in the block diagram: 

 

 

 

  
 

 

Summary of Contents for CM-TCN

Page 1: ...RITY LEVEL Public APPROVED 2021 04 20 DOCUMENT KIND Manual OWNING ORGANIZATION ABB STOTZ KONTAKT GmbH DOCUMENT ID 2CDC112285M0201 REV B LANG en PAGE 1 42 Copyright 2020 ABB All rights reserved MANUAL Smart Temperature Monitoring Relays CM TCN ...

Page 2: ...trical installation and control and automation engineering who are familiar with the applicable na tional standards Safety requirements The responsible staff must ensure that the application or use of the products de scribed satisfy all the requirements for safety including all the relevant laws reg ulations guidelines and standards Symbols This technical document contains markers to point the rea...

Page 3: ... 1 Motor protection with PT100 sensors 14 4 1 2 Factory 2 Motor bearing supervision with PT100 15 4 1 3 Factory 3 Motor supervision with PT100 2 16 4 1 4 Factory 4 Motor winding supervision with PTC 17 4 1 5 Factory 5 Transformer supervision with PT100 18 4 1 6 Factory 6 Transformer supervision with PTC 19 4 1 7 Factory 7 Individual temperature supervision with PT100 20 4 2 User profiles and indiv...

Page 4: ... RELAYS STATUS Approved SECURITY LEVEL Public DOCUMENT ID 2CDC112285M0201 REV B LANG en PAGE 4 42 Copyright 2020 ABB All rights reserved 7 1 6 Simulation mode 39 7 1 7 QR code 40 7 1 8 Factory reset 40 7 1 9 Device information 41 ...

Page 5: ...a rameters can be uploaded into a cloud or shared within seconds e g via E mail The temperature monitoring relays are typically used in the following applica tions Motor and system protection Temperature monitoring in control cabinets Monitoring of electronic mo tors Monitoring of transformers Ambient temperature moni toring Temperature limits for pro cess variables Monitoring of bearing tem perat...

Page 6: ...ommunication to the device NFC is an international transmission standard based on radio fre quency identification technology for the contact less exchange of data This technology is already integrated in most electronic de vices like tablets and smartphones and part of everyday life e g for contactless payment The CM TCN can be configured powered or without power sup plied This simplifies pre conf...

Page 7: ...SMART TEMPERATURE MONITORING RELAYS STATUS Approved SECURITY LEVEL Public DOCUMENT ID 2CDC112285M0201 REV B LANG en PAGE 7 42 Copyright 2020 ABB All rights reserved 1 3 Device description ...

Page 8: ...ounting onto a 35 mm standard mounting rail without using any tool Mounting De mounting 2 2 Block diagram The following block diagram shows the set up of the CM TCN supply voltage range connection of sensor types control input function of output relays and the galvanic insulation For sensors the maximum cable length with a shielded cable is 500 m In UL applications a fuse protection for the supply...

Page 9: ...er To protect the relay against unauthorized access and usage a transparent seal able cover can be used The cover is available as an accessory Before mounting the sealable cover the standard marker label must be removed from the device and the mounting clip which is delivered together with the seal able cover must be snapped onto the device After mounting the relay can be pro tected by a seal ...

Page 10: ... measur ing circuit 1T1 1T2 1T3 In section two the relay status is displayed Through the symbol the actual sta tus of the relay can be determined immediately a white relay means the relay is deenergized and a filled out symbol equals energized The relays are numbered according to the numbers on the terminal e g relay 1 equals terminal assignment 11 12 14 Section three provides information regardin...

Page 11: ... automatic reset In this case the re set menu will not be displayed If manual reset is configured for a relay the reset menu will become available automatically The re lay detects if the reset condition is reached In case it is not reached the reset menu will not be available Example In the picture displayed above channel 1 shows a measured temperature of 180 6 C Navigating the frame to relay 1 sh...

Page 12: ...ted within 30 s The current setting remains un changed 4 Configuration and setup This section provides information how to configure the CM TCM temperature relay with the help of profiles There are two different profile categories Fac tory and user profiles The following sections will explain each option and how to select and modify them The following parameters can be set Menu Parameter Symbol Exp...

Page 13: ...t Relay 1 Working principle NC NC NC NC NO NO NO Signal Threshold Hysteresis Delay 1 2 3 Ch 130 C 10 K 0 s 1 2 Ch 90 C 5 K 0 s 1 2 3 Ch 150 C 10 K 0 s 1 PTC 1 2 3 Ch 130 C 10 K OFF 999s 1 PTC OFF 999 s 1 Ch1 40 C 2 K 0 s Sensor error 1 Cyclic Switching Period On time 1 1 week 15 min 1 1 week 15 min Relay 2 Working principle NC NC NC NC NC NC NO Signal Threshold Hysteresis Delay 4 5 6 Ch 150 C 5 K ...

Page 14: ...d threshold controls the switch off at a temperature of 150 C Relay 2 will trip if the threshold value is measured by any of the three measuring circuits In case of sensor errors in any of the three sensor circuits short circuit open wire relay 3 is triggered immediately The relays energize when the measured temperature is below the threshold and the set hysteresis value The hysteresis is set to 1...

Page 15: ...upervision For each of the bearings left and right a PT100 sensor is configured Like the motor winding supervision the profile offers a pre warning at 90 C tripping relay 1 and a switch off threshold at 110 C tripping relay 2 The hysteresis for both thresholds is set to 5 K Relay 3 trips in case of sensor er rors The relays operate in closed circuit principle Automatic reset is active for all outp...

Page 16: ...or supervision with PT100 2 Profile 3 follows the same logic as profile 1 The temperature thresholds are con figured for higher temperatures Threshold number 1 trips at 150 C and thresh old number 2 is reached at 170 C The relays operate in closed circuit principle Automatic reset is active for all out put relays The operating logic and the settings are displayed in the block diagram ...

Page 17: ...tes to sig nal 1 and channel 2 to signal 2 Relay 3 trips in case of sensor error for both measuring circuits The relays operate in closed circuit principle Automatic reset is active for all out put relays The maximum permitted cold state resistance in series is 750 Ohm In the signal menu the settings for threshold and hysteresis are disabled for the corresponding signals if PTC is set as sen sor F...

Page 18: ...ld is reached relay 1 trips A cyclic switching function is assigned to relay 1 to periodically switch the relay once per week for 15 minutes to keep the fan from clogging Threshold 2 is a pre warning at 140 C and trips relay 2 Additionally to the threshold configuration the sensor error signals are assigned to relay 2 as well Threshold 3 is for the switch off at 155 C Relays 1 and 3 operate in ope...

Page 19: ...g input corelates to one output relay channel 1 to Relay 1 channel 2 to relay 2 and channel 3 to relay 3 The temperature thresholds depend on the se lected sensors Cyclic switching function 1 is assigned to relay 2 Relay 2 trips in case of sensor error for all measuring circuits Relay 1 and 3 operate in normally open working principle relay 2 in normally closed Automatic reset is active for all ou...

Page 20: ... profile each channel corresponds to one of the relays channel 1 to relay 1 channel 2 to relay 2 and channel 3 to relay 3 The sensor error is assigned for each channel to the corresponding relay All thresholds are set to measure overtemperature at 40 C The relays work in the open circuit principle Automatic reset is active for all relays The operating logic and the settings are displayed in the bl...

Page 21: ... circuits can be monitored and set as threshold The absolute difference is meas ured The configured sensors must be the same for both channels This function is only possible with PT100 PT1000 and NTC sensor configura tion Step 3 Allocate the signals to a relay output This means that as soon as signal becomes true the assigned relay output is activated It is possible to allocated multiple signals t...

Page 22: ...easuring cir cuit2 2T1 2T2 2T3 PT100 PT1000 PTC NTC Bi metal switch Measuring circuit 3 Selection of the sensor type for measuring cir cuit 3 3T1 3T2 3T3 PT100 PT1000 PTC NTC Bi metal switch 4 2 2 Step 2 Signal definition In this menu up to nine different signals and three cyclic switching functions can be configured A signal setting consists of the threshold configuration the hys teresis and ON a...

Page 23: ...al source These parameters make the threshold configuration e g channel 1 symbol channel 300 C Ch1 Ch2 Ch3 DiffCh1Ch2 DiffCh1Ch3 DiffCh2Ch3 Over or un der temper ature Temperature value 200 850 C 328 1530 F Hysteresis Configuration of hysteresis re lated to threshold 1 99 9 C 33 8 211 82 F ON delay Configuration of the ON delay delayed switching of the relay after the threshold is reached 0 6553 5...

Page 24: ...hannel selection Clicking on leads back to the next higher menu stage Alternatively the but ton can be pressed for 2 seconds Hysteresis In this sub menu the hysteresis related to the configured threshold can be set The term hysteresis refers to the release of an energized relay after its threshold value has been reached again Example The relay picks up if the temperature rises above 100 C i e over...

Page 25: ...switching back for the set amount of time after the measured value has reached the threshold hysteresis value ON delay menu Cyclic switching function The cyclic switching function follows a periodical rhythm The user can define the cycle time and the on time The cycle time is the period after which the ON time is scheduled e g one week The ON time is the time for which the relay switches positions...

Page 26: ... Relay 1 corresponds to terminals 11 12 14 relay 2 to 21 22 24 and relay 3 to 31 32 34 Relay menu with relay 1 selected By clicking on the relay the sub menu of the selected relay is entered The following parameters can be set for each relay Menu Parameter Sym bol Explanation Data range Relay 1 3 Signals The signals defined in the previous menu can be as signed to one of the three relays 1 2 3 4 5...

Page 27: ...the numbers can be selected To assign a signal the button needs to be pressed The selection is shown by a black background be hind the chosen number Relay 1 threshold signal In the picture signal 1 is currently assigned to relay 1 The curser on signal 2 sig nals the user the position on the display For the signal on which the cursor is currently positioned the configuration is shown in the bottom ...

Page 28: ... is active With the manual reset the relay will remain in the switched position even if the good state is reached again The user needs to manually activate the reset either via the display or remotely via terminals S1 C Relay 1 Reset Cyclic switching function The assignment of the cyclic switching functions follows the same principle as the assignment of the threshold signals Sensor error signals ...

Page 29: ...four user defined storage spaces To save a new setting the saving icon in the main menu needs to be selected Four user defined profiles will show up displayed by the person icon The num ber in the top right corner represents the number of the user profile Any profile can be selected to save the data After the selection the device will ask for confirmation of the selection Selecting the cross will ...

Page 30: ... disabled at any time enable disa ble Default disable Password protection A four digit password can be set for the de vice enable disa ble Default Disa bled NFC NFC can be set to ena bled or disabled enable disa ble Default enable 5 1 Parameter lock The parameter lock is an additional function to protect the device from acci dental changes Contrary to the password protection every user who has acc...

Page 31: ...ecurity password protection enabled As soon as the password is active no parameters can be changed A request to enter the password is made every time the user wants to access the menu Instead of entering the password and thus enabling full parameter set ting functionality the user can select the read only mode The read only mode works like the parameter lock and gives the operator full read access...

Page 32: ... to be enabled directly at the device NFC pairing If the device is powered the button needs to be pressed for three seconds to en able NFC while on the main screen This enables NFC pairing for 15 seconds dur ing which time a connection must be established During the 15 seconds time frame the LED is blinking orange When the first communication was successful NFC stays enabled for another 5 minutes ...

Page 33: ...ion is registered The backlight can be continuously on or off or be set to a specific time The default display ON time is 30 seconds Common settings display ON time Menu Parameter Symbol Explanation Data range Common settings Device App Display ON time Time during which the display backlight is on OFF 10 s 30 s 1 min 2 min 5 min 10 min 30 min 1 h ON Default 3 s Temperature unit Selection of the te...

Page 34: ...ahrenheit F By changing the temperature unit all parameters in the device are automatically adapted to the new unit no further adjustments from the user side are needed Common settings Temperature unit 6 1 3 Power on delay The device has a configurable power on delay During the power on phase the measured values are not evaluated by the relay and therefore do not lead to a premature trip The defau...

Page 35: ...201 REV B LANG en PAGE 35 42 Copyright 2020 ABB All rights reserved 6 1 4 User defined text The device offers the option to save up to three user defined texts with up to 8 signs They can be used for device specific information like location use etc ASCII signs only Common settings user defined text ...

Page 36: ...events are stored No settings possible Can be reset by the user Operating hour counter The operating hour counter stores lifetime information about the relay No settings possible Cannot be reset by the user Mainte nance counter The mainte nance counter counts the trips per relay No settings possible Can be reset by the user Statistics In statistics the user finds the minimum maxi mum and aver age ...

Page 37: ...r condi tions and cyclic switching function events The information displayed for each event includes the tripped relay information related to the cause of the event threshold reached cyclic switching function error condition and the time when the event happened measured in time since power on One event is displayed at a time To see all events the user can scroll though the event history It is poss...

Page 38: ...me of each relay To see all information the user can scroll though the list Pushing the push rotate button will lead back to the condition monitoring menu Condition monitoring operating hour counter The values cannot be reset 7 1 3 Maintenance counter In this menu the total switching cycles per relay are counted The relay trip coun ter can be reset To reset the user needs to press the push rotate ...

Page 39: ...r on Condition monitoring password reset counter 7 1 6 Simulation mode The simulation mode can be used for commissioning or testing There are two options in the simulation mode Simulation of temperature values to test the re lay configuration or trip of the relays The symbol for simulation mode is displayed in the bottom pane of the display The user can navigate through the simulation mode by rota...

Page 40: ...ion and details about the temperature monitoring portfolio as well as other related products can be found 7 1 8 Factory reset A factory reset sets the device back to the delivery condition All personal set tings and user profiles will be deleted Maintenance counter which cannot be de leted by the user will be kept even after a factory reset To make a factory reset the user needs to click on the sy...

Page 41: ...VEL Public DOCUMENT ID 2CDC112285M0201 REV B LANG en PAGE 41 42 Copyright 2020 ABB All rights reserved 7 1 9 Device information Under device information the name of the device the order code the serial num ber and the firmware version are stored Device information ...

Page 42: ... technical changes or modify the contents of this document without prior notices With re gard to purchase orders the agreed par ticulars shall prevail ABB AG does not ac cept any responsibility whatsoever for potential errors or possible lack of infor mation in this document We reserve all rights in this document and in the subject matter and illustra tions contained therein Any reproduc tion disc...

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