ABB REU 610 Operator's Manual page 42

REU 610 REU 610
42
Voltage Protection Relay
Operator's Manual
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 indicator 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 indicator LED (ready) is flashing, the fault indication cannot be
cleared. In case an internal fault disappears, the green indicator LED stops flashing
and the relay is returned to the normal service state, but the fault indication message
remains on the display until manually cleared.
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 Type of fault
4 Error in output relay PO1
5 Error in output relay PO2
6 Error in output relay PO3
7 Error in output relay SO1
8 Error in output relay SO2
9 Error in the enable signal for output relay PO1, PO2, SO1 or SO2
10, 11, 12 Error in the feedback, enable signal or output relay PO1, PO2, SO1 or
SO2
13 Error in optional output relay SO3
14 Error in optional output relay SO4
15 Error in optional output relay SO5
16 Error in the enable signal for optional output relay SO3, SO4 or SO5
17, 18, 19 Error in the feedback, enable signal or optional output relay SO3, SO4
or SO5
20, 21 Auxiliary voltage dip
30 Faulty program memory
50, 59 Faulty work memory
a)
51, 52, 53 , 54, 56 Faulty parameter memory
b)
1MRS755770
A040278