GE L90 Instruction Manual page 641

CHAPTER 7: COMMANDS AND TARGETS
AGGREGATOR ERROR:
• Latched target message: No.
• Description of problem: The second line of this self-test error indicates the problem with the PMU Aggregator.
• 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 L90 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 L90 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.
L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
TARGETS MENU
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