ABB RED670 Commissioning Manual page 284

Section 14
Troubleshooting
The internal events are time tagged with a resolution of 1ms and stored in a list. The list can store up to
40 events. The list is based on the FIFO principle, when it is full, the oldest event is overwritten. The list
cannot be cleared and its content cannot be erased.
The internal events in this list not only refer to faults in the IED, but also to other activities, such as
change of settings, clearing of disturbance reports, and loss of external time synchronization.
The information can only be retrieved from the Parameter Setting software package. The PC can be
connected either to the port at the front or at the rear of the IED.
These events are logged as internal events.
Table 51:
Event message:
INT--FAIL
INT--FAIL
INT--WARNING
INT--WARNING
IOn--Error
IOn--Error
ADMn-Error
ADMn-Error
MIM1-Error
MIM1-Error
INT--RTC
INT--RTC
INT--TSYNC
INT--TSYNC
INT--SETCHGD
DRPC-CLEARED
The events in the internal event list are time tagged with a resolution of 1ms.
This means that, when using the PC for fault tracing, it provides information on the:
• Module that should be changed.
• Sequence of faults, if more than one unit is faulty.
• Exact time when the fault occurred.
14.2.3 Diagnosing the IED status via the LHMI hint menu
In order to help the user, there is an LHMI page labeled 'Hints'. This page is located under Main menu /
Diagnostics/IED status /Hints. For each activated hint there is a headline. From the headline view, an
explanation page can be entered, giving the user more information and hints about the particular topic.
278
Events available for the internal event list in the IED
Description
Off Internal fail status
Off Internal warning status
Off In/Out module No. n status
Off Analog/Digital module No. n
status
Off mA-input module status
Off Real Time Clock (RTC) status
Off External time synchronization
status
Any settings in IED changed
All disturbances in Disturbance
report cleared
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1MRK 505 378-UUS Rev. J
Generating signal:
INT--FAIL (reset event)
INT--FAIL (set event)
lNT--WARNING (reset event)
lNT--WARNING (set event)
IOn--Error (reset event)
IOn--Error (set event)
ADMn-Error (reset event)
ADMn-Error (set event)
MIM1-Error (reset event)
MIM1-Error (set event)
INT--RTC (reset event)
INT--RTC (set event)
INT--TSYNC (reset event)
INT--TSYNC (set event)
GUID-7E8503E9-441B-487A-9CD7-B43463D1CAE5 v5
Line differential protection RED670
Commissioning manual