Indicated result Possible reason Proposed action
(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 Hitachi Power grids
representative for service.
15.2 Fault tracing
IP8765-1 v1
15.2.1 Internal fault indications
M11763-2 v7
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
43.
Table 43: 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
RTC READY / FAIL This signal will be active when there is a
hardware error with the real time clock.
Table continues on next page
Section 15 1MRK 504 165-UUS Rev. J
Troubleshooting
306 Transformer protection RET670
Commissioning manual
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