Indicated result Possible reason Proposed action
Real time clock Ready No problem detected. None.
Real time clock Fail The real time clock has
been reset.
Set the clock.
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.
16.2 Fault tracing
IP8765-1 v1
16.2.1 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
26.
Table 26: 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
Table continues on next page
Section 16 1MRK 502 073-UUS A
Troubleshooting
298 Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Commissioning manual
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