GE L30 Instruction Manual page 519

Line current differential system
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CHAPTER 7: COMMANDS AND TARGETS
How often the test is performed: Each time a PMU's related settings is changed.
What to do: Correct the problem indicated in the second line or contact the factory.
TEMP MONITOR:
OVER TEMPERATURE
Latched target message: Yes.
Description of problem: The ambient temperature is greater than the maximum operating temperature (+80°C).
How often the test is performed: Every hour.
What to do: Remove the L30 from service and install in a location that meets operating temperature standards.
UNEXPECTED RESTART:
Press "RESET" key
Latched target message: Yes.
Description of problem: Abnormal restart from modules being removed or inserted while the L30 is powered-up, when
there is an abnormal DC supply, or as a result of internal relay failure.
How often the test is performed: Event driven.
What to do: Contact the factory.
FIRST ETHERNET FAIL
SECOND ETHERNET FAIL
THIRD ETHERNET FAIL
Latched target message: Yes.
Description of problem: A link loss detection on an Ethernet port. The link loss is due to unplugging the cable or the
switch port being down.
How often the test is performed:
What to do: Check the connection.
WRONG TRANSCEIVER
Latched target message: Yes.
Description of problem: The type of SFP does not match the CPU type.
T-type CPU = All ports support fiber SFPs only
U-type CPU = Maintenance port needs RJ45 SFP and the other two ports fiber SFPs
V-type CPU = All ports support RJ45 SFPs only
What to do: A web page "SFP Transceiver Information" is provided. This page displays the type of the SFP in it. This data
is to be used with the CPU type to know the cause of the problem.
SFP MODULE x FAIL
Latched target message: No.
Description of problem: A faulty SFP or unplugging the SFP would generate this self test.
What to do: The web page "SFP Transceiver Information" described in the previous section applies for this self test as
well. The "SFP Module Fail" has higher priority and it suppresses the "Ethernet Fail" target message. The "SFP MODULE
L30 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
TARGETS MENU
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