Section 15 Troubleshooting
15.1 Checking the self supervision signals
15.1.1 Checking the self supervision function
15.1.1.1 Determine the cause of an internal failure
This procedure describes how to navigate the menus in order to find the cause of an
internal failure when indicated by the flashing green LED on the HMI module.
Procedure
1. Display the general diagnostics menu.
Navigate the menus to:
Diagnostics/IED status/General
2. Scroll the supervision values to identify the reason for the failure.
Use the arrow buttons to scroll between values.
15.1.2 Self supervision HMI data
15.1.2.1 General IED status
The following table shows the general IED status signals.
Table 36: Signals from the General menu in the diagnostics tree.
Indicated result
Possible reason Proposed action
Internal fail Off No problem detected. None.
Internal fail On A failure has occurred. Check the rest of the indicated results to find the
fault.
Internal warning Off No problem detected. None.
Internal warning On A warning has been
issued.
Check the rest of the indicated results to find the
fault.
Time synch Ready No problem detected. None.
Time synch Fail No time synchronization. Check the synchronization source for problems.
If the problem persists, contact your ABB
representative for service.
Table continues on next page
1MRK 504 165-UUS - Section 15
Troubleshooting
Transformer protection RET670 2.2 ANSI 303
Commissioning manual
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