GE Industrial Solutions Entellisys 4.0 System User Manual - Manual (Page 114)

Multipoint functions 114
7
7.2.2 Troubleshooting
Multi-Source Ground Fault Setting Change Rejected events are observed in the Sequence of
Events log
•
Verify that the pickup setting is within the valid range. Valid range is from “Zone Minimum
Pickup” to 1200 Amps. (See
Setting Multi-Source Ground-Fault pickup/delay on page 111 .)
Backup relay is not working
•
Verify that the backup function is enabled for the concerned zone in the concerned topology.
Frequent suspended/resumed events are seen
•
Verify that both CPUs are operating with the hardware clock. This can be done from the
System Health screen. The Synchronization hardware OK indicator lights should be green for
both CPUs.
7.2.3 Events generated by Multi-Source Ground-Fault Relay
To view a table of events generated by the Multi-Source Ground-Fault Relay, see Alarms and
events on page 213 .
7.2.4 Alarms generated by Multi-Source Ground-Fault Relay
To view a table of alarms generated by the Multi-Source Ground-Fault Relay, see Alarms and
events on page 213 .