GE N60 Instruction Manual page 559

CHAPTER 7: COMMANDS AND TARGETS
• Description of problem: The type of SFP does not match the CPU type. The SFP is a silver device that plugs into the rear
of the CPU module.
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
The consequence of an incorrect SFP can range from damage to the N60 to no power information for the N60 on its
web page (enter IP address in a web browser, then click the SFP Transceiver Information. Only the type of SFP
displays and not power data).
• 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 small form-factor pluggable port (SFP) or unplugging of the SFP generates this self test
message.
• 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
FAIL FUNCTION" setting enables/disables this self test. The target for this self test is priority-based, with the third one
being the highest priority. For example, if all three SFP modules fail, then the third SFP target is activated. If the third
SFP module failure resolves, then the second SFP target is activated.
Self-Test Error
AGGR CONFIG MISMATCH
• Latched target message: Yes.
• Description of problem: There is a limitation when using six PMUs. The self-test trips when any of the following
acceptable conditions are violated.
– Two aggregators are allowed when using six PMUs, IEEE C37.118, and a 120/100 reporting rate
– One ASDU is allowed when using six PMUs, IEC 90-5, and a 60/50 reporting rate
– One ASDU and one aggregator are allowed when using six PMUs, IEC 90-5, and a 120/100 reporting rate
• How often the test is performed: Event driven.
• What to do: Reconfigure aggregators according to the rules, as follows:
– For C37.118 with six PMU software option, the following is acceptable:
a. 20/100 reporting rate: 2 aggregators are allowed
– For 90-5 with six PMU software option, the following are acceptable
a. 60/50 reporting rate: six PMUs can be supported with one ASDU only
b. 120/100 reporting rate: six PMUs can be supported with one ASDU and one aggregator combination only
AUTHENTICATION FAIL
• Latched target message: No.
• Description of problem: The number of failures threshold was exceeded.
• What to do: Wait for the lockout interval and try to authenticate again.
FIRMWARE LOCK
• Message: "Unauthorized firmware attempt"
• Latched target message: No.
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
TARGETS MENU
7
7-13