Xantrex Technology PV-30208 User Manual

Page 29

SECTION 5
TROUBLESHOOTING

DOCUMENT: 151315

PV-30208 Photovoltaic Inverter

Operation and Maintenance Manual

5-5

processed.

• Check +/- VDC power supply outputs.

• Check control wire harness integrity (Refer to the system schematic in Section 7).

• Check CT harness for damage.

• Check CT harness +/-15VDC at CT.

• Check CT output voltage (mV) with reference to ground.

• Replace CT showing high output voltage offset.

(9) Current Imbalance Fault (0x10000)
The PV-30208 has determined that there is an excessive phase-to-phase current imbalance, while the
system is operating.

• Observe individual phase currents during operation with the operator interface program and with a

true RMS oscilloscope. Verify waveforms are sinusoidal and maintain proper phase relationships.

• Determine which phase is imbalanced.

• Verify phase conductor wiring integrity (Refer to the system schematic in Section 7).

• Check CT control wire harness integrity (Refer to the system schematic in Section 7).

• Replace CT on the phase exhibiting the current imbalance.

Stop Switch Fault
The on/off switch, located on the upper enclosure, is disabled. The contact block on the back of the
switch must be open for the PV-30208 to report this message.

If the switch is in the on position and the LCD reads ‘Stop Switch’:

• Isolate the PV-30208 from external power (Refer to Section 2).

• Verify continuity across the switch contact block while the switch is turned to the on position.

• Verify continuity between J9-1 and J9-2 while the switch is enabled.