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ABB REM 610 Technical Reference Manual
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ABB REM 610 Technical Reference Manual

Motor protection relay
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REM 610
Motor Protection Relay
Technical Reference Manual - ANSI Version

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  • Page 1 REM 610 Motor Protection Relay Technical Reference Manual - ANSI Version...

  • Page 3: Table Of Contents

    1MRS 755537 Motor Protection Relay REM 610 Issued: March 31, 2005 Technical Reference Manual - ANSI Version Version: We reserve the right to change data without prior notice. Contents 1. Introduction ................6 1.1. About this manual .................6 1.2. The use of the relay ..............6 1.3.
  • Page 4 4.1.12.Communication ports ............62 4.1.13.IEC 60870-5-103 remote communication protocol ..63 4.1.14.Modbus remote communication protocol ......66 4.1.14.1.Protocol overview ..........66 4.1.14.2.Profile of Modbus REM 610....... 67 4.1.14.3.SPA bus communication protocol parameters ... 79 4.1.14.4.Event codes ............93 4.1.15.Self-supervision (IRF) system .......... 97 4.1.15.1.Self-supervision of the RTD module ....
  • Page 5 ................128 5.2.6. Ground-fault protection in a solidly grounded network ...128 6. Ordering information ............130 7. Revision history of REM 610 ..........132 7.1. Revision identification ...............132 7.2. Changes and additions to the earlier released revision A ..132 8. References ................133 9.

  • Page 6: Introduction

    Interface (MMI), and to the Installation Manual for installation of the relay. 1.2. The use of the relay REM 610 is a versatile multifunction protection relay mainly designed to protect motors in a wide range of motor applications. REM 610 is based on a microprocessor environment. A self-supervision system continuously monitors the operation of the relay.
  • Page 7 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual • three additional galvanically isolated digital inputs • Disturbance recorder • recording time up to 80 seconds • triggering by one or several internal or digital input signals • records four analogue channels and up to eight user-selectable digital channels •...

  • Page 8: Guarantee

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual 1.4. Guarantee Please inquire about the terms of guarantee of your nearest ABB representative. 1.5. Revision history Version Date Remarks April 11, 2005 Modified for ANSI compliance from the original manual...

  • Page 9: Safety Information

    Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Safety information Dangerous voltages can occur on the connectors, even though the auxiliary voltage has been disconnected. National and local electrical safety regulations must always be followed. The device contains components which are sensitive to electrostatic discharge.

  • Page 10: Instructions

    The relay can be used with both circuit-breaker controlled and contactor controlled drives. REM 610 can equally well be used to protect, for instance, feeder cables and power transformers which require thermal overload protection and, for instance, single-, two- or three-phase overcurrent or non-directional ground-fault protection.
  • Page 11 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Fig. 3.3.-1 Connection diagram, example 1...
  • Page 12 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Fig. 3.3.-2 Connection diagram, example 2...
  • Page 13 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Fig. 3.3.-3 Connection diagram, example 3...

  • Page 14: Technical Description

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Technical description 4.1. Functional description 4.1.1. Product functions 4.1.1.1. Schema of product functions Three-phase thermal overload protection Motor start-up supervision based on thermal stress calculation Three-phase definite-time low-set overcurrent protection...

  • Page 15: Inputs

    4.1.1.4. Outputs REM 610 is provided with three power outputs (PO1, PO2 and PO3) and two signal outputs (SO1 and SO2). Switchgroups SGR1...5 are used for routing internal signals from the protection elements, the motor start-up signal and the external trip signal to the desired signal or power output.

  • Page 16: Motor Start Up

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual The estimated time to the next possible motor start up, i.e. when the restart disable signal is reset, can be accessed either via the HMI or the SPA bus. Note! If the restart disable function has been activated (SGF1/7=0), SGR3 will be overridden.

  • Page 17: Disturbance Recorder

    4.1.1.11. Non-volatile memory REM 610 can be configured to store various data in a non-volatile memory, which will retain its data also in case of loss of auxiliary voltage (provided that the battery has been inserted and is charged). Operation target messages and LEDs, the number...
  • Page 18 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual IRF codes can indicate: • no response on the output contact test • faulty program, work or parameter memory • internal reference voltage error In case of a warning, the relay will continue to operate with full or reduced functionality and the green target LED (ready) will remain lit as during normal operation.

  • Page 19: Measurements

    Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual when second-pulse synchronization is used, only year-month-day-hour-minute- second.The relay’s real-time clock will be rounded to the nearest whole second or minute, depending on whether second- or minute-pulse synchronization is used.

  • Page 20: Configuration

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.2-1 Measured values Target Description RTD5 Temperature from RTD5 RTD6 Temperature from RTD6 PTC1 Thermistor1, resistance value PTC2 Thermistor2, resistance value Optional 4.1.3. Configuration Fig. 4.1.3.-1 illustrates how the internal and digital input signals can be configured...
  • Page 21 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Fig. 4.1.3.-1 Signal diagram...

  • Page 22: Protection

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual The functions of the relay are selected with the switches of switchgroups SGF, SGB, SGR and SGL. The checksums of the switchgroups are found under SETTINGS in the HMI menu. The functions of the switches are explained in detail in the corresponding SG_ tables.
  • Page 23 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual The full load current of the motor is defined by means of the FLA secondary scaling factor and determines the thermal trip level of element 49. The set safe stall time, t determines the operate time of the element for a load current of 6 x FLA without prior load.
  • Page 24 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual The reduced ability of the motor to cool down during standstill is taken into account by setting the cooling time constant to be longer than the heating time constant. The...
  • Page 25 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual 4000 3000 2000 1000 6x [s] 1.05 10 I/FLA Fig. 4.1.4.2.-1 Trip curves when no prior load and p=20...100%...
  • Page 26 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual 4000 3000 2000 1000 t 6x [s] 1.05 10 15 20 10 I/FLA Fig. 4.1.4.2.-2 Trip curves at prior load 1 x FLA and p=100%...
  • Page 27 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual 4000 3000 2000 1000 t 6x [s] 1.05 I/FLA Fig. 4.1.4.2.-3 Trip curves at prior load 1 x FLA and p=50%...
  • Page 28 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual 4000 3000 2000 1000 t 6x [s] 1.05 8 10 I/FLA Fig. 4.1.4.2.-4 Trip curves at prior load 1 x FLA and p=20%...

  • Page 29: Start-Up Supervision

    Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual 4.1.4.3. Start-up supervision Start-up supervision can be based on either definite-time overcurrent protection or thermal stress calculation. The selection is made in SGF3, the default being thermal stress calculation. Start-up supervision based on definite-time overcurrent...

  • Page 30: Short-Circuit Protection

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual ~ 100 ms’ pickup time and calculate the thermal stress value, I x t, until all three phase currents have fallen below the set pickup value. When the calculated value...

  • Page 31: Undercurrent Protection

    Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual The set pickup value of element 50P can be set to be automatically doubled in a motor start-up situation, i.e. when the object to be protected is being connected to a network.

  • Page 32: Unbalance Protection

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual When the ground-fault current exceeds the set pickup value of element 51N, the element will generate a pickup signal after a ~ 50 ms’ pickup time. When the set operate time at definite-time characteristic elapses, the element will generate a trip signal.

  • Page 33: Phase Reversal Protection

    Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual where t = operate time = NPS current 46 PICKUP = set pickup value 46 TDIAL = set time constant equals the motor constant, I x t (provided by the...

  • Page 34: Cumulative Start-Up Time Counter

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Note! The unbalance element will be blocked during the tripping of the phase reversal element. 4.1.4.9. Cumulative start-up time counter The cumulative start-up time counter detects too frequent start-up attempts, which cause overheating of the motor.

  • Page 35: 11.Temperature Protection (Optional)

    Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual The CBFAIL will not be triggered in case of: • an alarm or a trip of the thermal protection element • an alarm or a trip a temperature element • a trip of the phase reveral element •...

  • Page 36: 12.Temperature Protection Using Thermistors

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Note! RTD6 can be used to measure the ambient temperature for the thermal protection element. In this case, RTD6A and RTD6T will not be in use. This state will be indicated by dashes on the LCD and by “-999”...
  • Page 37 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Fig. 4.1.4.11.-1 RTD sensor/thermistor connection RTD temperature vs resistance Resistance values (Ω) of RTD sensors at specified temperatures are presented in the table below. Table 4.1.4.11-1 Resistance values of RTD sensors...
  • Page 38 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.4.11-1 Resistance values of RTD sensors Platinum Nickel Copper Nickel TCR 0.00385 TCR 0.00618 TCR 0.00427 TCR 0.00672 Temperature °C Pt 100 Pt 250 Pt 1000 Ni 100 Ni 120 Cu 10 Ni 120 US 194.07...
  • Page 39 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual 49/38 - 1 ALARM1 49/38-1 Alarm (RTD) TRIP1 RTD1/ (RTD) PTC1 49/38-1 Trip TRIP1 (PTC) (PTC) ALARM2 RTD2 TRIP2 ALARM3 RTD3 TRIP3 49/38 - 2 49/38-2 Alarm ALARM4 (RTD) RTD4/...

  • Page 40: 13.Settings

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual 4.1.4.12. Settings There are two alternative setting groups available, setting groups 1 and 2. Either of these setting groups can be used as the actual settings, one at a time. Both groups have their related registers.
  • Page 41 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.1.4.12-1 Setting values Default Setting Description Setting range setting Restart disable value 5...500 s 66 COOL/∆t Countdown rate of start-up time 2...250 s/h 2 s/h counter Trip Fail Operate time of CBFAIL 0.10...60.0 s...
  • Page 42 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Switchgroups and parameter masks The settings can be altered and the functions of the relay selected in the SG_ selector switchgroups. The switchgroups are software based and thus not physical switches to be found in the hardware of the relay.
  • Page 43 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual SGF1...SGF5 Switchgroups SGF1...SGF5 are used for configuring the desired function as follows: Table 4.1.4.12-2 SGF1 Default Switch Function setting SGF1/1 Selection of the latching feature for PO1 SGF1/2 Selection of the latching feature for PO2...
  • Page 44 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.4.12-3 SGF2 Default Switch Function setting SGF2/1 Operation mode of the alarm target of element 49 SGF2/2 Operation mode of the pickup target of element 48/14 SGF2/3 Operation mode of the pickup target of element 50P...
  • Page 45 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.1.4.12-5 SGF4 Default Switch Function setting SGF4/1 and Disable of element 51N when one or several phase currents SGF4/2 exceed the FLA of the motor SGF4/1 SGF4/2 SGF4/3 Selection of ambient temperature •...
  • Page 46 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.4.12-7 SGB1...SGB5 Default Switch Function setting SGB1...5/3 • 0 = targets and memorized values are not cleared and latched output contacts are not unlatched by the digital input signal •...
  • Page 47 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual PO1 PO2 Weighting SGR1...5/1 Alarm factor SGR1...5/2 Trip SGR1...5/3 48/14 Pickup 48/14 SGR1...5/4 Trip SGR1...5/5 Pickup SGR1...5/6 Trip SGR1...5/7 Pickup SGR1...5/8 Trip SGR1...5/9 Pickup SGR1...5/10 Trip SGR1...5/11 1024 Pickup 2048 SGR1...5/12...
  • Page 48 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.4.12-8 SGR1...SGR5 Default setting Switch Function SGR1... SGR4... SGR3 SGR2 SGR5 SGR1...5/1 Alarm signal from element 49 SGR1...5/2 Trip signal from element 49 SGR1...5/3 Pickup signal from element (48/14 PICKUP) (48/14 TDLY) or 48/14 SGR1...5/4 Trip signal from element (48/14 PICKUP)
  • Page 49 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.1.4.12-9 SGL1...SGL8 Default setting Switch Function SGL1 SGL2 SGL3...8 SGL1...8/10 Trip signal from element 46R SGL1...8/11 Emergency Start Signal SGL1...8/12 DI1 signal SGL1...8/13 DI2 signal SGL1...8/14 DI3 signal SGL1...8/15 DI4 signal SGL1...8/16...
  • Page 50 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Non-volatile memory settings The table below presents data which can be configured to be stored in the non-volatile memory. All of the functions mentioned below can be selected separately with switches 1...6 either via the HMI or the SPA bus.

  • Page 51: 14.Technical Data On Protection Functions

    Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual 4.1.4.13. Technical data on protection functions Table 4.1.4.13-1 Element 49 Feature Value Set safe stall time, t 2.0...120 s Set ambient temperature, T 0...70°C Set restart disable level, 49 RESTDIS 20...80%...
  • Page 52 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.4.13-4 Element 50P Feature Value Set pickup value, 50P • at definite-time characteristic 0.50...20.0 x FLA Pickup time, typical 50 ms Time/current characteristic • definite time operate time, 50P TDLY 0.05...30.0 s...
  • Page 53 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.1.4.13-6 Element 51N Feature Value Operation accuracy • 1.0...10.0% I ±5% of the set pickup value • 10.0...100% I ±3% of the set pickup value Table 4.1.4.13-7 Element 46...

  • Page 54: Trip-Circuit Supervision

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.4.13-10 Elements 49/38-1 and 49/38-2 Feature Value Operate time accuracy at ±3% of the set definite-time characteristic operate time or 200 ms RTD sensors Set alarm value, RTD1...6A 0...200°C Operate time, RTD1...6A TDLY...
  • Page 55 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Under normal operating conditions, the applied external voltage is divided between the relay’s internal circuit and the external trip circuit so that at least 20 V remains over the relay’s internal circuit. If the external trip circuit’s resistance is too high or the internal circuit’s too low, due to welded relay contacts, for instance, the voltage...

  • Page 56: Target Leds And Operation Target Messages

    4.1.6. Target LEDs and operation target messages The operation of REM 610 can be monitored via the HMI by means of LED targets and text messages on the LCD. On the front panel of the relay there are three target LEDs with fixed functionality: a green target LED (ready), a yellow target LED (pickup/alarm) and a red target LED (trip).

  • Page 57: Monitoring Of Demand Values

    4.1.8. Monitoring of demand values REM 610 provides three different kinds of demand values. The first value shows the average current of all three phases measured during one minute. The value is updated once a minute. The second value shows the average current during an adjustable time range, ranging from 0 to 999 minutes, with an accuracy of one minute.

  • Page 58: 2.Disturbance Recorder Data

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual As soon as the recorder has been triggered and the recording has finished, the recording can be uploaded and analysed by means of a PC provided with a special program.

  • Page 59: 3.Control And Target Of Disturbance Recorder Status

    Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Triggering of the recorder immediately after it has been cleared or the auxiliary voltage connected may result in a shortened total recording length. Disconnection of the auxiliary voltage after the recorder has been triggered but before the recording has finished, on the other hand, may result in a shortened post-triggering recording length.

  • Page 60: Recorded Data Of The Last Events

    4.1.11. Recorded data of the last events REM 610 records up to five events. This enables the user to analyse the last five fault conditions in the motor drive controller. Each event includes the measured currents, pickup durations and time stamp, for instance. Additionally, information on the number of pickups is provided.
  • Page 61 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.1.11-1 Recorded data REGISTER Data description EVENT1 full load • Phase currents I and the NPS current as a multiple of the current (FLA) of the motor. The ground fault current, I , as a percentage of the rated current of the CT used.

  • Page 62: Communication Ports

    Technical Reference Manual 4.1.12. Communication ports The REM 610 is provided with an optical communication port (infrared) on the front panel. Rear communication is optional and requires a communication module, which can be provided with either a fibre-optic, combined fibre-optic (plastic and glass) or RS-485 connection.

  • Page 63: Iec 60870-5-103 Remote Communication Protocol

    The selected line-idle state and connection topology apply irrespective of which rear communication protocol is active. REM 610 will use the SPA bus protocol as default when the optional communication module is in use. The protocol selection is memorized and will therefore always be activated when the rear connection is in use.
  • Page 64 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.13-1 Information mapping of configuration set 1 and 2 Event reason Emergency start E5/E6 Activated/Reset Disturbance recorder E31/ Triggered/Cleared HMI Password E33/ Opened/Closed Motor start up 1E1/ Begins/Ends 49 Pickup/Reset...
  • Page 65 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.1.13-1 Information mapping of configuration set 1 and 2 Event reason 46 Pickup/Reset 1E31/ 1E31 1E32 46 Trip/Reset 1E33/ 1E31 1E34 46R Trip/Reset 1E35/ 1E36 CBFAIL Activated/ 1E37/ Reset...

  • Page 66: Modbus Remote Communication Protocol

    1 stop bit if parity is used; 2 stop bits if parity is not used Note! The turnaround time (response time) of the REM 610 depends on the amount of data requested in a query. Therefore, the turnaround time can vary between approximately 10 and 70 milliseconds.

  • Page 67: 2.Profile Of Modbus Rem 610

    Modbus line settings, i.e. parity, CRC byte order and baud rate, can be adjusted either via the HMI or the SPA bus. The implementation of the Modbus protocol in REM 610 supports the following functions: Table 4.1.14.2-1 Supported application functions...
  • Page 68 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.14.2-2 Supported diagnostic subfunctions Code Name Description Return query data The data in the query data field is returned (looped back) in the response. The entire response is to be identical to the query.
  • Page 69 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual The Modbus protocol provides the following diagnostic counters: Table 4.1.14.2-3 Diagnostic counters Name Description Bus message count The number of messages in the communications system detected by the slave since its last restart, clear counters operation or power up.
  • Page 70 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual If a UDR is linked to a non-existent holding register, reading from the register will fail and an “Illegal address exception” response will be sent. Giving the link address the value 0 will disable the UDR. If the master reads from a disabled UDR, the value 0 will be returned.
  • Page 71 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Modbus DI/CO data point address and the value to which the point has changed (0 or 1). SPA events lacking a corresponding DI/CO data point are shown as SPA channel and event code (informative event) in the event record. The maximum capacity of the Modbus event buffer is 99 events.
  • Page 72 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Digital Inputs As the master may not detect the changes of state of all digital signals when scanning, an additional change detect (CD) target bit will be created for every momentary target point;...
  • Page 73 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.1.14.2-5 Mapping of Modbus data HR/IR DI/Coil Write- Value Description address Comment able range (.bit) address UDR 4 4 or 388 UDR 5 5 or 389 UDR 6 6 or 390...
  • Page 74 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.14.2-5 Mapping of Modbus data HR/IR DI/Coil Write- Value Description address Comment able range (.bit) address Restart disable signal from element 417.10 1 = activated Restart disable signal from element 417.11...
  • Page 75 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.1.14.2-5 Mapping of Modbus data HR/IR DI/Coil Write- Value Description address Comment able range (.bit) address 420.02 1 = activated DI2 CD 420.03 420.04 1 = activated DI3 CD 420.05...
  • Page 76 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.14.2-5 Mapping of Modbus data HR/IR DI/Coil Write- Value Description address Comment able range (.bit) address One-minute demand value 0...5000 0...50 x FLA Demand value during the specified 0...5000 0...50 x FLA...
  • Page 77 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual When the value of the FR or ER bit is 1, there is one or several unread fault/event records. If time synchronization is realized via a digital input, either the SP (second- pulse) or MP (minute-pulse) bit will be activated.
  • Page 78 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.14.2-6 Fault record Pickup duration, element 46 0...100 0...100% Pickup duration, element 51N 0...100 0...100% Pickup duration, element 37 0...100 0...100% Readable and writeable register. If the input is out of operation or the optional RTD module has not been installed, the value -32768 will be returned.

  • Page 79: 3.Spa Bus Communication Protocol Parameters

    Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual The relay's real-time clock is stored in this structure. It can be updated by presetting the whole register structure in one Modbus transaction. Table 4.1.14.2-10Real-time clock structure Address Description Range Year 0...99...
  • Page 80 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.15-1 Settings Actual Group/ Group/ settings Variable Channel 1 Channel 2 Setting range (R), (R, W, P) (R, W, P) channel 0 Pickup value of element 51N 1S11 2S11 1.0...100% I...
  • Page 81 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.1.15-1 Settings Actual Group/ Group/ settings Variable Channel 1 Channel 2 Setting range (R), (R, W, P) (R, W, P) channel 0 Checksum, SGB 2 1S72 2S72 0...16383 Checksum, SGB 3...
  • Page 82 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.15-2 Recorded data: Channel 0 Recorded data Parameter (R) Value Trip target code 0 = --- 1 = alarm of element 49 2 = trip of element 49 3 = pickup of element (48/14 PICKUP)
  • Page 83 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.1.15-3 Recorded data: Channels 1...5 Event (R) Recorded data Value Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Ground-fault current 0...800% NPS current 0...50 x FLA Thermal stress 0...100%...
  • Page 84 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.15-3 Recorded data: Channels 1...5 Event (R) Recorded data Value Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Pickup duration, 1V26 2V26 3V26 4V26 5V26 0...100% element 37...
  • Page 85 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Disturbance recorder Table 4.1.15-4 Parameters for the disturbance recorder Parameter Description R, W Value (channel 0) Remote triggering Clear recorder memory Sampling rate R, W 800/960 Hz 400/480 Hz 50/60 Hz...
  • Page 86 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.15-5 Disturbance recorder internal triggering and storing Default value Default value Default value Weighting of triggering Event of triggering of storing factor mask, V236 mask, V238 edge, V237 Alarm of element 49...
  • Page 87 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Control parameters Table 4.1.15-7 Control parameters Description Parameter R, W, P Value Reading of an event buffer Time, channel number and event code Re-reading of an event buffer Time, channel number and...
  • Page 88 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.15-7 Control parameters Description Parameter R, W, P Value Sensor/thermistor selection for input R, W (P) 0 = not in use V121 RTD1 1 = Pt100 -45...+150°C 2 = Pt250 -45...+150°C 3 = Pt1000 -45...+150°C...
  • Page 89 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.1.15-7 Control parameters Description Parameter R, W, P Value Changing the SPA password or V161 W (P) 1...999 reinstating the password protection Changing the HMI password V162 1...999 Restore factory settings...
  • Page 90 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.15-8 Inputs Parameter (R), Description Value channel 0 Current measured on phase I 0...50 x FLA Current measured on phase I 0...50 x FLA Current measured on phase I 0...50 x FLA...
  • Page 91 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.1.15-9 Output signals State of Recorded Status of the protection elements element (R), functions (R), Value channel 0 channel 0 Trip of element 37 Pickup of element 51N Trip of element 51N...
  • Page 92 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Parameters for the Modbus remote communication protocol Table 4.1.15-12 Settings Parameter Description R, W, P Value (channel 504) User-defined register 1 504V1 R, W 0...65535 User-defined register 2 504V2 R, W 0...65535...

  • Page 93: 4.Event Codes

    Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.1.15-13 Measured values Parameter Description R, W, P Value (channel 0) Minimum ground-fault current after motor start 0...800% Thermal level R, W (P) 0...106% One-minute demand value 0...50 x FLA Demand value during the specified time range V62 0...50 x FLA...
  • Page 94 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Channel 0 Events always included in the event reporting: Table 4.1.15.1-2 Event codes E1...E7 Channel Event Description IRF disappeared Warning Warning disappeared Emergency start activated Emergency start deactivated The thermal level has been changed via serial communication Table 4.1.15.1-3 Event codes E50...E51...
  • Page 95 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.1.15.1-5 Event codes E1...E14 Weighting Channel Event Description Default value factor Restart disable reset 8192 Default value of event mask 1V155 4180 Table 4.1.15.1-6 Event codes E15...E26 Weighting Channel Event Description...
  • Page 96 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Channel 2 Table 4.1.15.1-8 Event codes E1...E10 Weighting Channel Event Description Default value factor PO1 activated PO1 reset PO2 activated PO2 reset PO3 activated PO3 reset SO1 activated SO1 reset...

  • Page 97: Self-Supervision (Irf) System

    4.1.16. Self-supervision (IRF) system REM 610 is provided with an extensive self-supervision system which continuously supervises the software and the electronics of the relay. It handles run-time fault situations and informs the user about an existing fault via a LED on the HMI and a text message on the LCD.

  • Page 98: 1.Self-Supervision Of The Rtd Module

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.1.16-1 IRF codes Fault code Type of fault 131, 139, 195, 203, 222, 223 Internal reference voltage error Error in the measuring unit May be corrected by formatting to the factory setting.

  • Page 99: Relay Parameterization

    0.2...1.0 mm wires. The energizing phase currents of REM 610 are connected to terminals X2.1/1-2, X2.1/3-4 and X2.1/5-6 (see table 4.2.1-1). The relay can also be used in single or two-phase applications by leaving one or two energizing inputs unoccupied.
  • Page 100 Note! Unused RTD inputs are to be short-circuited separately. Note! REM 610 is provided with connection socket X3.1 only if the optional RTD module has been installed. Terminals X4.1/21-24 and X3.1/1-6 (optional) are digital input terminals (see table 4.2.1-5). The digital inputs can be used to generate a blocking signal, to unlatch output contacts or for remote control of relay settings, for instance.
  • Page 101 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Fig. 4.2.1.-1 Rear view of REM 610 with the fibre-optic communication module for plastic and glass fibre...
  • Page 102 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Fig. 4.2.1.-2 Rear view of REM 610 with the RS-485 communication module Table 4.2.1-1 Inputs for phase and ground-fault currents Function Terminal REM610x11xxxx REM610x15xxxx REM610x51xxxx REM610x55xxxx X2.1-1 X2.1-2 X2.1-3 X2.1-4 X2.1-5...
  • Page 103 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.2.1-2 Auxiliary supply voltage Terminal Function X4.1-1 Input, + X4.1-2 Input, - Table 4.2.1-3 IRF contact Terminal Function X4.1-3 IRF, common X4.1-4 Closed; IRF, or U disconnected X4.1-5 Closed; no IRF, and U connected Table 4.2.1-4...

  • Page 104: Serial Communication Connections

    X5.3-RX Receiver RS-485 connection If REM 610 is provided with the optional RS-485 communication module, the cable is connected to terminals X5.5/1-2 and X5.5/4-6. The connection socket is a 6-pin header-type socket and the terminals are of screw compression type.
  • Page 105 Daisy-chain bus wiring scheme with 2-wire, half-duplex, multi-point communication. The maximum number of devices (nodes) connected to the bus where REM 610 is being used is 32, and the maximum length of the bus is 1200 meters.
  • Page 106 Shield GND Combined fibre-optic connection (plastic and glass) If REM 610 is provided with the optional fibre-optic communication module for plastic and glass fibre, the plastic fibre-optic cables are connected to terminals X5.3- RX (Receiver) and X5.3-TX (Transmitter) and the glass fibre-optic cables to terminals X5.4-RX (Receiver) and X5.4-TX (Transmitter).
  • Page 107 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.2.2-4 Receiver selection Transmitter Position of jumper X2 Plastic X5.3-RX Glass X5.4-RX X5.3-TX(plastic) X5.3-RX(plastic) Fibre-optic Interface X5.3 X5.4 X5.3 X5.4 X5.4-TX(glass) X5.4-RX(glass) Fig. 4.2.2.-2 Jumper location on the communication module for plastic and glass fibre Table 4.2.2-5...

  • Page 108: Technical Data

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual 4.2.3. Technical data Table 4.2.3-1 Dimensions Width, frame 177 mm, case 164 mm Height, frame 177 mm (4U), case 160 mm Depth, case 149.3 mm Weight of the relay ~3.5 kg Weight of the spare unit ~1.8 kg...
  • Page 109 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.2.3-5 Digital inputs ±20% of the rated voltage Operating range Rated voltage DI1...DI2 DI3...DI5 (optional) REM610BxxHxxx 110/125/220/250 V dc REM610BxxLxxx 24/48/60/110/125/220/250 Vdc REM610BxxxxMx 24/48/60/110/125/220/250 V dc Current drain 2...18 mA Power consumption/input <0.9 W...
  • Page 110 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 4.2.3-10 RTD/analogue inputs 100 Ω platinum Supported RTD sensors TCR0.00385 (DIN 43760) 250 Ω platinum TCR 0.00385 1000 Ω platinum TCR 0.00385 100 Ω nickel TCR 0.00618 (DIN 43760) 120 Ω...
  • Page 111 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 4.2.3-12 Electromagnetic compatibility tests EMC immunity test level meets the requirements listed below 1 MHz burst disturbance test, class III According to the IEC 60255-22-1 • Common mode 2.5 kV •...
  • Page 112 • 9.6 or 4.8 kbps (9.6 kbps with front communication cable) Auxiliary voltage The REM 610 requires a secured auxiliary voltage supply to operate. The internal power supply of the relay forms the voltages required by the relay electronics. The power supply is a galvanically isolated (flyback-type) DC/DC converter.

  • Page 113: Setting Calculations And Application Examples

    Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Setting calculations and application examples 5.1. Setting calculations 5.1.1. FLA secondary scaling factor The FLA secondary scaling factor for phase currents is calculated as follows: × FLA Secondary -------- -...

  • Page 114: Selecting Weighting Factor P

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Note! If the settings of the thermal overload protection have been defined by means of the FLA of the motor instead of the internal FLA, they will be valid at an ambient temperature of 40°C.
  • Page 115 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Fig. 5.1.2.1.-1 The influence of p at prior load 1 x FLA and t =20 s...

  • Page 116: Safe Stall Time For Hot Starts

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual 5.1.2.2. Safe stall time for hot starts The safe stall time setting, t , is determined according to the start-up time of the motor. The safe stall time can easily be determined from the trip curves at prior load 1 x FLA.
  • Page 117 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Example 1 Start-up current of the motor 6.2 x FLA Start-up time of the motor 11 s One hot start allowed Ambient temperature 40°C At an ambient temperature of 40°C the internal FLA equals the FLA of the motor.
  • Page 118 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual In this case, a safe stall time setting of 23 seconds is selected from the trip curves at prior load 1 x FLA, permitting a start-up time slightly longer than the one stated by the motor manufacturer;...

  • Page 119: Checking The Set Safe Stall Time For Cold Starts

    Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Fig. 5.1.2.2.-3 Selected safe stall time=60 s 5.1.2.3. Checking the set safe stall time for cold starts By selecting the correct trip curve from the trip curves at no prior load according to the previously selected or calculated safe stall time setting, the total start-up time of the motor can be read from the curve.

  • Page 120: Checking The Set Safe Stall Time For A Single Start

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual 5.1.2.4. Checking the set safe stall time for a single start If the safe stall time of the motor is shorter than the operate time when no prior load, a single motor start up should instead be protected by the start-up supervision.

  • Page 121: Checking The Need For Speed Switch

    Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual For instance, if the start-up current of the motor is 6.2 x FLA and the start-up time 11 seconds, 48/14 PICKUP = 6.2 and 48/14 TDLY = 11 s x 1.1 = 12 s.

  • Page 122: Short-Circuit Protection

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual A maximum of three motor start ups in four hours means that the register’s value should reach the set restart disable value four hours later to allow a new motor start up.

  • Page 123: Connection With Two Phase Current Transformers

    Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual The operate time of the unbalance element should be set to be shorter than the safe stall time stated by the motor manufacturer in case a phase is lost. 5.1.6.3.

  • Page 124: Stabilizing Virtual Ground-Fault Currents

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual The transformation ratio of the core balance transformer can be freely selected according to the ground-fault current, and consequently, the sensitivity of the ground-fault protection as well. Due to the extremely low burden of the relay, low transformation ratios may be used in cable current transformers, in KOLMA type transformers even as low as 10/1 A.

  • Page 125: Application Examples

    Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual 5.2. Application examples 5.2.1. Protecting a circuit-breaker controlled motor Data of the squirrel cage motor stated by the manufacturer: Rated power, P 4500 kW Rated voltage, U 3300 V Rated current, I...

  • Page 126: Protecting A Motor At An Ambient Temperature Other Than 40°C

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual If the pickup value of element 50P is set to be doubled during motor start up (SGF3/ 8=1), the pickup value should be set below the start-up current of the motor, i.e to ≈...

  • Page 127: Protecting A Contactor Controlled Motor

    Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual 5.2.3. Protecting a contactor controlled motor Data of the squirrel cage motor stated by the manufacturer: Rated power, P 900 kW Rated voltage, U 380 V Rated current, I 1650 A Start-up current of the motor 6.0 x I...

  • Page 128: Protecting Non-Rotating Objects

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual The high-set overcurrent element should be set out of operation to prevent the contactor in a contactor controlled drive from operating at too high phase currents. In addition, to avoid damaging the contactor, the ground-fault element should be set...
  • Page 129 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual The pickup value of element 51N is calculated as follows: × × × 20% 1650A --------------- - 16% 5A 2000A Thus, 51N = 16% and the 5A input is used.

  • Page 130: Ordering Information

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Ordering information When ordering REM 610 protection relays and/or accessories, please specify the following: • Order number • HMI language set number • Quantity The order number identifies the protection relay type and hardware as described in the figures below and is labelled on the marking strip under the lower handle of the relay.
  • Page 131 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 6.-1 HMI language set numbers Language set number Terminology Languages English, Svenska, Suomi English, Deutsch, Francais, Italiano, Español ANSI English (US), Español, Portuguese The following accessories are available: Item...

  • Page 132: Revision History Of Rem 610

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Revision history of REM 610 7.1. Revision identification The different revisions of REM 610 may include functional additions and changes to the product. Product Revision Release REM 610 Q4/2003 Q1/2005 7.2.

  • Page 133: References

    Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual References Other available manuals: • Operator’s Manual, 1MRS755538 • Installation Manual, 1MRS 752265-MUM...

  • Page 134: Abbreviations

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Abbreviations ANSI American National Standards Institute ASCII American Standard Code for Information Interchange CBFAIL Circuit-breaker failure protection Change detect Central Processing Unit Cyclical Redundancy Check Current transformer Digital input Electromagnetic compatibility...
  • Page 135 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Temperature coefficient of resistance Trip-circuit supervision User-defined register...

  • Page 136: Check Lists

    REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Check lists Table 10.-1Setting group 1 Group/ Default Customer’s Variable Channel 1 Setting range setting setting (R, W, P) Safe stall time 2...120 s Weighting factor 20...100% Time constant multiplier 1...64...
  • Page 137 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 10.-1Setting group 1 Group/ Default Customer’s Variable Channel 1 Setting range setting setting (R, W, P) Operate time RTD3A 1S28 1...100 s TDLY Trip value RTD3T 1S34 0...200°C 0°C...
  • Page 138 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 10.-1Setting group 1 Group/ Default Customer’s Variable Channel 1 Setting range setting setting (R, W, P) Checksum, SGL 8 1S98 0...1048575 Table 10.-2Setting group 2 Group/ Default Customer’s Variable...
  • Page 139 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 10.-2Setting group 2 Group/ Default Customer’s Variable Channel 2 Setting range setting setting (R, W, P) Operate time RTD2T 2S39 1...100 s TDLY Alarm value RTD3A 2S22 0...200°C 0°C...
  • Page 140 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 10.-2Setting group 2 Group/ Default Customer’s Variable Channel 2 Setting range setting setting (R, W, P) Checksum, SGL 6 2S96 0...1048575 Checksum, SGL 7 2S97 0...1048575 Checksum, SGL 8 2S98 0...1048575...
  • Page 141 Motor protection Relay REM 610 1MRS 755537 Technical Reference Manual Table 10.-3Control parameters Parameter Default Customer’s Description Setting range (channel 0) setting setting Sensor/thermistor V124 0 = not in use selection for input RTD4 1 = Pt100 -45...+150°C 2 = Pt250 -45...+150°C 3 = Pt1000 -45...+150°C...
  • Page 142 REM 610 Motor Protection Relay 1MRS 755537 Technical Reference Manual Table 10.-4 Parameters for the disturbance recorder Parameter Default Customer’s Description Setting range (Channel 0) setting settings Analogue channel M80, M81 Factor 0...65535, 00001,CT conversion factor and unit (A, kA), e.g.
  • Page 144 ABB Oy ABB Inc Distribution Automation Distribution Automation P.O. Box 699 7036 Snowdrift Rd FI-65101 Vaasa Allentown, Pa. 18106 FINLAND Phone: (610) 395-7333 Tel. +358 10 22 11 Toll Free: (800) 634-6005 Fax. +358 10 224 1094 Fax: (610) 395-1055...

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