Internal Faults - ABB REX610 Operation Manual

2NGA000823 A
7.2.1
REX610
Operation Manual
Warnings are indications of less severe situations which can also be caused by
external reasons such as a missing relay configuration.
The self-supervision page is available under Main menu/Monitoring/Self-
supervision node. The self-supervision page has the Internal fault and Warning
indications. In normal operation, ALL OK is displayed for the Internal fault and
Warning indications. The self-supervision also controls the status of IRF output
relay. The IRF output relay is energized under normal conditions and de-energized
under internal fault conditions.
Self-supervision
Warning
=All ok
Internal Fault
=All ok
GUID-239EB0F6-710D-4608-AA01-096D10C8FB0B V1 EN-US
Figure 45: Relay self-supervision status on local HMI
In addition, the boot reason is available in the audit trail events in Event Viewer in
PCM600 under the Security events.

Internal faults

When an internal relay fault is detected, relay protection operation is disabled, the
green Ready LED begins to flash and the self-supervision output contact is
activated.
Internal fault indications have the highest priority on the LHMI.
None of the other LHMI indications can override the internal fault
indication.
An indication about the fault is shown as a message on the LHMI. The text
Internal Fault with an additional text message, a code, date and time, is
shown to indicate the fault type.
Self-supervision
Warning
=All ok
Internal Fault
=DIO card error
GUID-3D5BD717-F051-45BE-87DF-06CD133D47D9 V1 EN-US
Figure 46: Internal fault in LHMI self-supervision page
If an internal fault disappears, the green Ready LED stops flashing and the
protection relay returns to the normal service state. The fault indication message
remains on the display until manually cleared.
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Section 7
Troubleshooting
59