GE L30 Instruction Manual page 378
Line current differential
system, ur series
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- Communications manual (526 pages)
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7.2 TARGETS
c) MINOR SELF-TEST ERROR MESSAGES
Most of the minor self-test errors can be disabled. Refer to the settings in the User-programmable self-tests section in chap-
ter 5 for additional details.
MAINTENANCE ALERT:
Replace Battery
•
Latched target message: Yes.
•
Description of problem: The battery is not functioning.
•
How often the test is performed: The battery is monitored every five seconds. The error message is displayed after 60
seconds if the problem persists
•
What to do: Replace the battery located in the power supply module (1H or 1L).
MAINTENANCE ALERT:
Direct I/O Ring Break
•
Latched target message: No.
•
Description of problem: Direct input and output settings are configured for a ring, but the connection is not in a ring.
•
How often the test is performed: Every second
•
What to do: Check direct input and output configuration and wiring.
MAINTENANCE ALERT:
ENET MODULE OFFLINE
•
Latched target message: No.
•
Description of problem: The L30 has failed to detect the Ethernet switch.
•
How often the test is performed: Monitored every five seconds. An error is issued after five consecutive failures
•
What to do: Check the L30 device and switch IP configuration settings. Check for incorrect UR port (port 7) settings on
the Ethernet switch. Check the power to the switch.
MAINTENANCE ALERT:
ENET PORT # OFFLINE
7
•
Latched target message: No.
•
Description of problem: The Ethernet connection has failed for the specified port.
•
How often the test is performed: Every five seconds.
•
What to do: Check the Ethernet port connection on the switch.
MAINTENANCE ALERT:
**Bad IRIG-B Signal**
•
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).
7-8
.
.
L30 Line Current Differential System
7 COMMANDS AND TARGETS
.
GE Multilin
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