Troubleshooting
4–2
153378
Faults and Fault Codes
Fault states are automatic from any state of operation. In the event of a fault
condition, the GT100 will immediately stop processing power and execute an
immediate orderly shutdown, open both the main AC and DC contactors, and
remain in a faulted state until the fault is remedied and cleared (manually or
automatically).
•
Faults associated with a grid disturbance or Air Duct Intake temperature
excursions clear automatically. The GT100 will automatically re-start after a
period set by Auto-Clear delay or five minutes respectively.
•
All other faults must be cleared manually.
All fault conditions arising from within the GT100
are reported to the UFCU
(Universal Frontpanel Control Unit). The 4-line VFD will display a hexadecimal
value (fault code) and a brief text description of the fault.
Most faults are latching and only those faults associated with grid disturbances
and Air Duct Intake temperature excursions are auto-clearing and thus enable the
GT100 to restart after a delay period.
Once the cause of the fault has been identified and corrected, and it is determined
to be safe to proceed, GT100 faults may be manually cleared from the UFCU
keypad or using the remote GUI.
See “Clearing Faults Manually” on page 4–4 for instructions on this procedure.
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