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Maintenance and Troubleshooting
6–4
975-0466-01-01
Table 6-1 is intended to assist in determining fault conditions that may require
user action to remedy.
Table 6-1
Troubleshooting the GT Inverter
Problem
Possible Cause
Solution
The inverter’s LEDs and display are
blank and the inverter does not
operate in sufficient sunlight.
Utility service panel AC and DC
breakers are switched off.
Turn on the breakers in the sequence
described in “Commissioning
Procedure” on page 4–2.
The display reads
Inverter Offline
and
AC Voltage Fault
.
Utility service panel breakers are
switched off.
AC grid voltage is not present or
incorrect.
Turn on utility panel breakers.
Check AC connections at the
inverter’s terminals. Ensure AC
voltage within the range specified in
“Output” on page A–2 is present.
The display reads
Inverter Offline
with sufficient sunlight.
DC breakers are switched off (if
installed), or DC fuses are blown (if
installed).
DC array voltage is not present.
Turn on any DC breakers and check
any DC fuses.
Check DC connections at the
inverter’s positive and negative DC
terminals. Check for incorrectly
wired PV arrays.
The display reads
Inverter Offline
and
DC Voltage Fault
with sufficient
sunlight.
DC voltage is present but incorrect.
Check DC connections at the
inverter’s positive and negative DC
terminals. Check for incorrectly
wired PV arrays. Ensure a voltage
within the operating voltage range is
present at the inverter’s terminals.
Only the inverter RED LED is
illuminated and the display reads
Ground Fault
.
Ground fault condition detected on
the PV array.
The PV system should be checked
by a qualified electrician and
repaired. See “PV Ground Fault
Detection” on page viii. To
reconnect:
1.
Make sure the GT Inverter is not
outputting power, and then
switch off the DC breaker. If a
DC breaker is not used, then
disconnect the DC input.
2.
Switch off the AC breaker.
3.
Remedy the actual ground fault.
4.
Restart the unit using the
sequence described in
“Commissioning Procedure” on
page 4–2.
Summary of Contents for GT2.8-AU-QC-230
Page 1: ...Xantrex Grid Tie Solar Inverter Owner s Manual GT2 8 AU QC 230 GT5 0 AU QC 230 ...
Page 2: ......
Page 3: ...Xantrex Grid Tie Solar Inverter Owner s Manual ...
Page 8: ...vi ...
Page 14: ...Contents xii 975 0466 01 01 ...
Page 16: ...xiv ...
Page 18: ...xvi ...
Page 58: ...4 4 ...
Page 70: ...Monitoring the Inverter 5 12 975 0466 01 01 ...
Page 76: ...Maintenance and Troubleshooting 6 6 975 0466 01 01 ...
Page 82: ...A 6 ...
Page 89: ......