GE G30 Instruction Manual page 517

CHAPTER 7: COMMANDS AND TARGETS
• What to do: Contact the factory.
PROTOTYPE FIRMWARE:
Self Test Error
• Description of problem: Seen until the builds is tagged as being 'release candidate' or 'gold' builds.
• What to do: Update firmware to either of these builds.
7.2.2.4 HardFiber self-test error messages
In addition to those provided by the standard UR-series devices, the UR devices implement HardFiber self-tests. These are
listed here. Any abnormal diagnostic condition indicated by the LEDs or the critical failure relay also results in a self-test
message, so troubleshooting is described here. For other relays, such at the B95
Equipment mismatch major self-test
• Description of problem: The number or type of installed hardware modules does not match the order code stored in
the CPU. The standard UR-series Equipment Mismatch self-test is extended to cover the possible presence of a
Process Card.
• Severity: Protection is not available and all contact outputs and shared outputs are de-asserted.
• What to do: Check all modules against the order code. Ensure they are inserted properly, and cycle the control power.
If a module has intentionally been added or removed use the Update Order Code command to notify the relay that the
current module configuration is correct.
Module failure major self-test
• Description of problem: UR-series device module hardware failure detected.
• Severity: Protection is not available and all contact outputs and shared outputs are de-asserted.
• What to do: Contact the factory and supply the failure code noted in the display. Text in the message identifies the
failed module (for example, H81). If operated on a Process Card failure, the Module Fail self-test seals-in (latches) till the
UR-series device is restarted.
Process bus failure major self-test
• Description of problem: Mission critical data is not available via the process bus. An AC quantity is considered critical if
both AC bank origins and the crosschecking settings are other than none. This self-test is also initiated by an AC input
discrepancy being detected. See the description of the crosschecking setting in this manual for further information. In
addition, this self-test can be initiated by user logic responding to loss of critical contact input/output or other data
using the Process Bus Failure Operand user-programmable self-test setting. This setting is located in the Settings >
Product Setup > User-Programmable Self Test menu.
• Severity: Protection is not available and all contact outputs and shared outputs are de-asserted.
• What to do: First rectify any Process Bus Trouble and Brick Trouble self-test errors. Check the actual value of the
operand referenced by the Process Bus Failure Operand setting, and if "On," determine the cause and rectify.
If the problem persists with the foregoing all clear, the cause must be an AC input discrepancy, which is typically the
result of problems in the input signals to the Bricks, or faults in the Brick input conditioning hardware. If the error was
annunciated the first time significant signal was encountered, suspect the former cause and check the copper
connections external to the Brick. Where multiple UR-series devices have self-test errors, look for common causes.
To further isolate AC input discrepancy errors, put the relay in test-isolated mode, then one by one, temporally change
an AC bank crosschecking setting to none, until the Process Bus Failure clears. Once the problem AC bank has been
identified, the values from each of the two Bricks can be examined individually by temporarily mapping each to an AC
bank with a single origin.
G30 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL
TARGETS MENU
Plus
, see that product's instruction manual.
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