Self-Supervision (Irf) System - ABB REM 610 Technical Reference Manual

1MRS 755537
4.1.16.
Motor protection Relay
Technical Reference Manual

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. There are two types of fault targets: IRF
targets and warnings.
Internal relay fault
When an internal relay fault is detected, which will prevent relay operation, the relay
will first try to eliminate it by restarting. Only after the fault has been found to be
permanent, the green target LED (ready) will start to blink and the
self-supervision output contact will be activated. All other output contacts will be
returned to the initial state and locked for the internal relay fault. Further, a fault
target message will appear on the LCD, including a fault code.
IRF targets have the highest priority on the HMI. None of the other HMI targets can
override the IRF target. As long as the green target LED (ready) is blinking, the fault
target cannot be cleared. In case an internal fault disappears, the green target LED
(ready) will stop blinking and the relay will be returned to the normal service state,
but the fault target message will remain on the LCD until manually cleared (or a
motor start up begins).
The IRF code indicates the type of internal relay fault. When a fault appears, the
code is to be recorded and stated when ordering service. The fault codes are listed in
the following table:
Table 4.1.16-1 IRF codes
Fault code
4
5
6
7
8
9
10, 11, 12
20, 21
30
50, 59
2)
51, 52, 53 , 54, 56
55
75
80
81
82
85
86
90
95
103, 104
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
or SO2
Error in the feedback, enable signal or output relays PO1,
PO2, SO1 or SO2
Auxiliary voltage dip
Faulty program memory
Faulty work memory
1)
Faulty parameter memory
Faulty parameter memory, calibration parameters
RTD module faulty
RTD module missing
RTD module unknown
RTD module configuration error
Power supply module faulty
Power supply module unknown
Hardware configuration error
Communication module unknown
Faulty configuration set (for IEC 60870-5-103)
REM 610
97