GE Multilin
L90 Line Current Differential System
7-9
7 COMMANDS AND TARGETS
7.2 TARGETS
7
•
Latched target message
: No.
•
Description of problem
: A bad IRIG-B input signal has been detected.
•
How often the test is performed
: Monitored whenever an IRIG-B signal is received.
•
What to do
: Ensure the following:
–
The IRIG-B cable is properly connected.
–
Proper cable functionality (that is, check for physical damage or perform a continuity test).
–
The IRIG-B receiver is functioning.
–
Check the input signal level (it may be less than specification).
If none of these apply, then contact the factory.
•
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
: An Ethernet connection has failed.
•
How often the test is performed
: Monitored every five seconds.
•
What to do
: Check Ethernet connections. Port 1 is the primary port and port 2 is the secondary port.
•
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 SNTP configuration and network connections.
•
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.
MAINTENANCE ALERT:
**Bad PTP Signal**
MAINTENANCE ALERT:
Port ## Failure
MAINTENANCE ALERT:
SNTP Failure
MAINTENANCE ALERT:
4L Discrepancy
Summary of Contents for UR Series L90
Page 652: ...A 16 L90 Line Current Differential System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Page 772: ...B 120 L90 Line Current Differential System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Page 802: ...C 30 L90 Line Current Differential System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Page 812: ...D 10 L90 Line Current Differential System GE Multilin D 1 IEC 60870 5 104 APPENDIX D D ...
Page 824: ...E 12 L90 Line Current Differential System GE Multilin E 2 DNP POINT LISTS APPENDIX E E ...
Page 834: ...F 10 L90 Line Current Differential System GE Multilin F 3 WARRANTY APPENDIX F F ...
Page 846: ...xii L90 Line Current Differential System GE Multilin INDEX ...
