GE N60 Instruction Manual page 557

CHAPTER 7: COMMANDS AND TARGETS
• Latched target message: No.
• Description of problem: A discrepancy has been detected between the actual and desired state of a latching contact
output of an installed type "4L" module.
• How often the test is performed: Upon initiation of a contact output state change.
• What to do: Verify the state of the output contact and contact the factory if the problem persists.
MAINTENANCE ALERT:
GGIO Ind xxx oscill
• Latched target message: No.
• Description of problem: A data item in a configurable GOOSE data set is oscillating.
• How often the test is performed: Upon scanning of each configurable GOOSE data set.
• What to do: The "xxx" text denotes the data item that has been detected as oscillating. Evaluate all logic pertaining to
this item.
MAINTENANCE ALERT:
Setting Changed
• Latched target message: No.
• Description of problem: Any device settings were changed over any available interface.
• How often the test is performed: On any setting changes, when new settings were written to device.
• What to do: Verify that the setting change was legitimate and essential for proper functioning of the protection and
control system.
MAINTENANCE ALERT:
Front Panel Trouble
• Latched target message: No.
• Description of problem: The front panel is not communicating with the CPU module.
• How often the test is performed: Every five seconds.
What to do: Open the front panel and check the connection between the CPU module and the front panel, then restart the
relay in EnerVista under Commands > Relay Maintenance > Reboot Relay or by powering the relay off and on. If trouble
persists, contact the factory.
MAINTENANCE ALERT:
GFP Version Mismatch
• Latched target message: No.
• Description of problem: The graphical front panel firmware revision is not synchronized with that of the CPU module in
the relay.
• How often the test is performed: Whenever connection is established between the graphical front panel and the CPU
module in the relay.
• What to do: Perform UR firmware upgrade with the graphical front panel connected to the CPU module in the relay. It
can be done using any communication interface (Ethernet or USB). This synchronizes the graphical firmware revision
with that of the relay. If trouble persists, contact the factory.
DIRECT I/O FAILURE:
COMM Path Incomplete
• Latched target message: No.
• Description of problem: A direct device is configured but not connected.
• How often the test is performed: Every second.
• What to do: Check direct input and output configuration and wiring.
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
TARGETS MENU
7
7-11