Xantrex Fault Codes

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Xantrex Error Codes

Problem Possible Cause Solution
The inverter's KEDs 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".
The display reads inverter offline and ZC 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 is within the range specified and "output" below 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 Restart the unit using the sequence described in "commissioning procedure" below.
The system value (power being produced by the system) displayed on each inverter's LCD is different on inverters connected to the same daisy-chained network Inverters can display different system values when one of the inverters is set to a different baud rate than the rest. That particular inverter's baud rate screen show Tx and / or RX error Check each inverter's baud rate and compare the settings. Change any inverters with an incorrect baud rate. Make sure to follow the recommended procedure supplied by Xantrex grid tie solar inverter baud rate change procedure (976-0216-01-01 available on www.xantrex.com)

Steps for Commissioning Procedure

To start the GT inverter
1. Ensure the AC breaker is off
2. Ensure the correct multi-contact PV connectors are firmly plugged into the GT inverter as described in "connecting the DC wiring" on page 3-2 of the Xantrex solar inverter manual
3. (GT 2.8-AU only) Ensure the AC quick connect is firmly inserted into the GT inverter and that the coupling ring is tight
4. Uncover the PV array and/or close the main DC disconnect switch, if one is installed. Ensure the PV array is producing the required output voltage
5. Connect the utility grid voltage by switching the AC circuit breaker on

The AC Voltage Should be Within Below Output Range

GT 2.8-AU GT5.0-AU
Maximum output power 2800 W ac 5000 W ac
Maximum output current 14.0 A 24.0 A
Nominal grid voltage 230 Vac
Nominal grid frequency 50 Hz
Total Harmonic Distortion (THD) <3%
Power Factor >0.99% (at rated power)
>0.95% (full power range)
Output Characteristics Current source
Output Current Waveform Sine wave