GE G30 - Page 450

7-8 G30 Generator Protection System GE Multilin
7.1 COMMANDS 7 COMMANDS AND TARGETS
7
• Latched target message: No.
• Description of problem: No PTP enabled port has good PTP signal input.
• How often the test is performed: Activated when no acceptable signal is being received.
• What to do: Ensure the following:
– The Ethernet cable(s) are properly connected.
– At least one PTP grandmaster-capable clock is functioning.
– If strict PP is enabled, that entire network is PP compliant.
– The network is delivering PTP messages to the relay.
• Latched target message: No.
• Description of problem: The SNTP server is not responding.
• How often the test is performed: Every 10 to 60 seconds.
• What to do: Check that Ethernet cable(s) are properly connected. Check that configuration for the SNTP server corre-
sponds to the actual server settings. Check connectivity to the server (ping the server IP address.
• Latched target message: No.
• Description of problem: A discrepancy has been detected between the actual and desired state of a latching contact
output of an installed type “4L” module.
• How often the test is performed: Upon initiation of a contact output state change.
• What to do: Verify the state of the output contact and contact the factory if the problem persists.
• Latched target message: No.
• Description of problem: A data item in a configurable GOOSE data set is oscillating.
• How often the test is performed: Upon scanning of each configurable GOOSE data set.
• What to do: The “xxx” text denotes the data item that has been detected as oscillating. Evaluate all logic pertaining to
this item.
• Latched target message: No.
• Description of problem: A direct device is configured but not connected.
• How often the test is performed: Every second.
• What to do: Check direct input and output configuration and wiring.
MAINTENANCE ALERT:
**Bad PTP Signal**
MAINTENANCE ALERT:
SNTP Failure
MAINTENANCE ALERT:
4L Discrepancy
MAINTENANCE ALERT:
GGIO Ind xxx oscill
DIRECT I/O FAILURE:
COMM Path Incomplete