General Troubleshooting
153378
4–3
General Troubleshooting
Respond to any GT100 alarm or fault as follows:
1. Note and document the alarm or fault code and brief text description.
2. Determine the source of the alarm or fault by referring to Table 4-1, “Fault
Codes” on page 4–5.
3. Rectify the alarm or fault condition, determine it is safe to proceed, and
attempt to clear the fault from the UFCU keypad and display. See “Clearing
Faults Manually” on page 4–4 for instructions on this procedure.
4. If the condition is sustained and cannot be corrected, again note and document
the fault code and description, and contact either your Distributor / Reseller,
or Xantrex Customer Service.
Important:
Before clearing a fault, it is recommended that the Oscillography data be
retrieved from the CCU2. The log will start recording again, and over-write the previous
data, once the fault is cleared.
WARNING: Lethal Voltage
In order to remove all sources of voltage from the GT100, the incoming power must be
de-energized at the source. This may be done at the main utility circuit breaker, the PV
array disconnect, and by opening the AC Disconnect and the DC Disconnect Switch on
the GT100. Review the system configuration to determine all of the possible sources of
energy. In addition, allow five minutes for the DC bus capacitors to discharge after
removing power. Follow the “Lockout and Tag” procedure on page 2–26 to de-energize
the GT100.
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