Self-Supervision - ABB REM 610 Operator's Manual

1MRS755538
4.3.2.3.
Motor Protection Relay
Operator's Manual - ANSI version

Self-supervision

There are two types of fault targets; internal relay fault (IRF) targets and warnings.
Internal relay faults prevent relay operation. Warnings are less severe faults and
continued relay operation with full or reduced functionality is allowed.
Internal relay fault (IRF)
At permanent internal relay faults, the relay is no longer protecting and has to be
sent for repair at an authorized service supplier. When the self-supervision system
detects a permanent internal relay fault, the green target LED starts to flash. The text
INTERNAL FAULT and a fault code appear on the display.
State the fault code when sending the relay for service.
As long as the green target LED (ready) is flashing, the fault target cannot be
cleared. In case an internal fault disappears, the green target LED stops flashing and
the relay is returned to the normal service state, but the fault target message remains
on the display until manually cleared, or until a motor start up begins.
INTERNAL FAULT
FAULT CODE :30
Fig. 4.3.2.3.-1 Permanent IRF
The fault code is a number which identifies the fault type. The fault codes are listed
in the table below:
Table 4.3.2.3.-1 IRF codes
Fault code
4
5
6
7
8
9
10, 11, 12
20, 21
30
50, 59
Type of fault
Error in output relay PO1
Error in output relay PO2
Error in output relay PO3
Error in output relay SO1
Error in output relay SO2
Error in the enable signal for output relays PO1,PO2,SO1,SO2
Error in the feedback, enable signal or output relays PO1,PO2,
SO1,SO2
Auxiliary voltage dip
Faulty program memory
Faulty work memory
REM 610 REM 610
A040278
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