Indicated result Possible reason Proposed action
ADC-module OK No problem detected. None.
ADC-module Fail The AD conversion
module has failed.
Contact your ABB representative for service.
(Protocol name) Ready No problem detected. None.
(Protocol name) Fail Protocol has failed.
(I/O module name)
Ready
No problem detected. None.
(I/O module name) Fail I/O modules has failed. Check that the I/O module has been
configured and connected to the IOP1-
block.
If the problem persists, contact your ABB
representative for service.
14.2 Fault tracing
IP8765-1 v1
14.2.1 Internal fault indications
M11763-2 v5
If an internal fault has occurred, the local HMI displays information under Main
menu/Diagnostics/IED status
/General
Under the Diagnostics menus, indications of a possible internal failure (serious
fault) or internal warning (minor problem) are listed.
Indications regarding the faulty unit are outlined in table
45.
Table 45: Self-supervision signals on the local HMI
HMI Signal Name: Status Description
INT Fail OFF / ON This signal will be active if one or more
of the following internal signals are
active; INT--LMDERROR, INT--
WATCHDOG, INT--APPERROR, INT--
RTEERROR, or any of the HW
dependent signals
INT Warning OFF / ON This signal will be active if one or more
of the following internal signals are
active; INT--RTCERROR, INT--
IEC61850ERROR, INT--
TIMESYNCHERROR
ADMnn READY / FAIL Analog input module n failed. Signal
activation will reset the IED
BIMnn READY / FAIL BIM error. Binary input module Error
status. Signal activation will reset the
IED
BOMn READY / FAIL BOM error. Binary output module Error
status.
IOMn READY / FAIL IOM-error. Input/Output Module Error
status.
MIMn READY / FAIL mA input module MIM1 failed. Signal
activation will reset the IED
Table continues on next page
Section 14 1MRK 505 378-UEN A
Troubleshooting
284 Line differential protection RED670 2.2 IEC
Commissioning manual
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