GE C70 Instruction Manual page 416
Capacitor bank protection and control system
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- Instruction manual (708 pages) ,
- Communications manual (532 pages) ,
- Instruction manual (702 pages)
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7.2 TARGETS
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Latched target message: No.
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Description of problem: A bad IRIG-B input signal has been detected.
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How often the test is performed: Monitored whenever an IRIG-B signal is received.
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What to do: Ensure the following:
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The IRIG-B cable is properly connected.
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Proper cable functionality (that is, check for physical damage or perform a continuity test).
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The IRIG-B receiver is functioning.
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Check the input signal level (it may be less than specification).
If none of these apply, then contact the factory.
MAINTENANCE ALERT:
**Bad PTP Signal**
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Latched target message: No.
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Description of problem: No PTP enabled port has good PTP signal input.
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How often the test is performed: Activated when no acceptable signal is being received.
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What to do: Ensure the following:
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The Ethernet cable(s) are properly connected.
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At least one PTP grandmaster-capable clock is functioning.
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If strict PP is enabled, that entire network is PP compliant.
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The network is delivering PTP messages to the relay.
MAINTENANCE ALERT:
Port ## Failure
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Latched target message: No.
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Description of problem: An Ethernet connection has failed.
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How often the test is performed: Monitored every five seconds.
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What to do: Check Ethernet connections. Port 1 is the primary port and port 2 is the secondary port.
7
MAINTENANCE ALERT:
SNTP Failure
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Latched target message: No.
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Description of problem: The SNTP server is not responding.
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How often the test is performed: Every 10 to 60 seconds.
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What to do: Check SNTP configuration and network connections.
MAINTENANCE ALERT:
4L Discrepancy
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Latched target message: No.
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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.
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How often the test is performed: Upon initiation of a contact output state change.
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What to do: Verify the state of the output contact and contact the factory if the problem persists.
7-12
C70 Capacitor Bank Protection and Control System
7 COMMANDS AND TARGETS
GE Multilin
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