Relay Parameterization; Design Description; Input/Output Connections - ABB REM 610 Technical Reference Manual

REM 610
4.1.17.
4.2.
4.2.1.
98
Motor Protection Relay
Technical Reference Manual
If the fault has not disappeared on expiration of the filter time of eight seconds, all
inputs will automatically be set out of operation to indicate a hardware fault. Should
the fault later disappear, the inputs will be re-enabled. This will prevent most sudden
hardware faults from affecting the measured value.
To ensure that the specified measurement accuracy is achieved, a more thorough test
of the hardware will be performed as part of the continuous self-calibration
procedure to identify errors which degrade the measurement accuracy. If the
self-calibration of the RTD module fails, all inputs will automatically be set out of
operation to indicate a hardware fault. Should the self-calibration later succeed, the
inputs will be re-enabled.
Additionally, a single input will be set out of operation if the measured value is
outside the specified limits (-4%...104%) or if an open-loop or a short-circuit
condition is detected.

Relay parameterization

Local parameterization
The parameters of the relay can be set either locally via the HMI or externally via
serial communication with the Relay Setting Tool. When the parameters are set
locally, the setting parameters can be chosen via the hierarchical menu structure.
The desired language can be selected for parameter descriptions. Refer to the
Operator's Manual for further information.
External parameterization
The Relay Setting Tool is used for parameterizing the relay units. Adjusting the
parameter values using the Relay Setting Tool is done off-line, after which the
parameters can be downloaded to the relay via a communication port.

Design description

Input/output connections

All external circuits are connected to the terminals on the rear panel of the relay.
Terminals X2.1-_ are dimensioned for one 0.5...6.0 mm
2
2.5 mm wires and terminals X3.1-_ and X4.1-_ for one 0.2...2.5 mm
2
two 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.
The energizing earth-fault current of REM 610 is connected to terminals X2.1/7-8
(see table 4.2.1-1).
The input terminals of the optional RTD module are located on connection socket
X3.1. The RTD sensors or thermistors are connected to terminals X3.1/7-24 (see
table 4.2.1-6). Both the inner and the outer shield of the cable must be connected to
the chassis earth screw between connectors X4.1 and X3.1 (lower screw). In
addition, the outer shield must be connected to chassis earth at the other end of the
cable as well.
1MRS 752263-MUM
2
wire or for two max
2
wire or for