ABB RELION REX640 - Page 96

Fault indication
Fault
code
Additional
information
Fast self-
recovery
attempt
Slow 10min
self-
recovery
(# of
attempts)
Immediate
IRF-mode
Action in permanent fault
state
Internal Fault
PO-relay(s), Slot
C
-20 Runtime error:
Faulty Power Out-
put relay(s) in card
located in slot C.
Yes Yes (3) No Check wirings. Restart the
relay. If recovered by re-
starting, continue relay nor-
mal operation. If not recov-
er by restarting, exchange
the hardware module in
slot C.
Internal Fault
PO-relay(s), Slot
E
-21 Runtime error:
Faulty Power Out-
put relay(s) in card
located in slot E.
Yes Yes (3) No Check wirings. Restart the
relay. If recovered by re-
starting, continue relay nor-
mal operation. If not recov-
er by restarting, exchange
the hardware module in
slot E.
Internal Fault
PO-relay(s), Slot
A2
-22 Runtime error:
Faulty Power Out-
put relay(s) in card
located in slot A2.
Yes Yes (3) No Check wirings. Restart the
relay. If recovered by re-
starting, continue relay nor-
mal operation. If not recov-
er by restarting, exchange
the hardware module in
slot A2.
Internal Fault
PO-relay(s), Slot
B
-23 Runtime error:
Faulty Power Out-
put relay(s) in card
located in slot B
Yes Yes (3) No Check wirings. Restart the
relay. If recovered by re-
starting, continue relay nor-
mal operation. If not recov-
er by restarting, exchange
the hardware module in
slot B.
Internal Fault
PO-relay(s), Slot
D
-24 Runtime error:
Faulty Power Out-
put relay(s) in card
located in slot D.
Yes Yes (3) No Check wirings. Restart the
relay. If recovered by re-
starting, continue relay nor-
mal operation. If not recov-
er by restarting, exchange
the hardware module in
slot D.
Internal Fault
PO-relay(s), Slot
F
-25 Runtime error:
Faulty Power Out-
put relay(s) in card
located in slot F.
Yes Yes (3) No Check wirings. Restart the
relay. If recovered by re-
starting, continue relay nor-
mal operation. If not recov-
er by restarting, exchange
the hardware module in
slot F.
Internal Fault
PO-relay(s), Slot
G
-26 Runtime error:
Faulty Power Out-
put relay(s) in card
located in slot G.
Yes Yes (3) No Check wirings. Restart the
relay. If recovered by re-
starting, continue relay nor-
mal operation. If not recov-
er by restarting, exchange
the hardware module in
slot G.
Internal Fault
PO-relay(s), Slot
A1
-27 Runtime error:
Faulty Power Out-
put relay(s) in card
located in slot A1.
Yes Yes (3) No Check wirings. Restart the
relay. If recovered by re-
starting, continue relay nor-
mal operation. If not recov-
er by restarting, exchange
the hardware module in
slot A1.
Internal Fault
Conf. error, Slot
C
-30 Start up error: Card
in slot C is wrong
type, is missing,
does not belong
to original configu-
ration or card firm-
ware is faulty.
No No Yes Check that the card in slot
C is proper type and prop-
erly installed. Then restart
the relay. If does not then
recover by restarting, it
is hardware module failure
most likely in question. Ex-
Table continues on the next page
Troubleshooting 1MRS759118 D
96 REX640
Operation Manual