GE G60 Instruction Manual page 529

7 COMMANDS AND TARGETS
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.
d) EXTERNAL DEVICE SELF-TEST ERROR MESSAGES
The major self-test errors are listed and described below.
GPM-F FAILURE:
TROUBLE 01
• Latched target message: No.
• Description of problem: The G60 detects loss of communication with the field ground module on the RS485 link.
• How often the test is performed: Every five seconds.
• What to do: Check the field ground module and its RS485 connection to G60.
GPM-F FAILURE:
TROUBLE 02
• Latched target message: No.
• Description of problem: The field ground module reports trouble with injected low frequency signal voltage level or fre-
quency.
• How often the test is performed: Every second.
• What to do: Verify that the injection voltage actual value in the G60 is around 15 V. If the message remains, cycle
power the field ground module. If the problem persists, then contact the factory.
GPM-F FAILURE:
TROUBLE 03
• Latched target message: No.
• Description of problem: Field ground module reports trouble with its circuitry.
• How often the test is performed: Every second.
• What to do: Verify that the actual values in G60 are within accepted values. Cycle power to the field ground module. If
the problem remains, then contact the factory.
GPM-F FAILURE:
TROUBLE 04
• Latched target message: No.
• Description of problem: The setting for field ground module injection frequency does not match the injection frequency
reported by the module.
• How often the test is performed: Every second
• What to do: The field ground module may be connected to another G60 through its alternate RS485 port and it might
be receiving another frequency setting. Please ensure both G60 devices connected to the same field ground module
have the same injection frequency setting.
GE Multilin
.
G60 Generator Protection System
7.2 TARGETS
7
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