Outback Power Systems GFX1424E, GFX1312E, GFX1448E manual Error Messages, Error Troubleshooting

Troubleshooting

Error Messages

An error message is caused by a critical fault. In most cases when this occurs, the unit will shut down and the inverter’s ERROR LED (see page 11) will illuminate. See the system display manual for instructions on viewing errors. One or more messages will display yes in the MATE system display; Y in the MATE3. If a message says no (or N), it is not the cause of the error.

Error screens can only display errors; they cannot clear them. It is possible to clear an error by resetting the inverter. The inverter must be turned off, and then on, to reset it. Other possible steps are shown below (although it is still necessary to reset the inverter).

Table 5 Error Troubleshooting

Message	Message	Causes
(MATE)	(MATE3)
low ac	Low Output	Inverter’s AC regulation cannot be
output	Voltage	maintained under high load conditions.
voltage
stacking	Stacking Error	Programming problem among stacked
error		units. (Often occurs if there is no master.)
detected		Can also occur when ac output backfeed
		occurs.
inverter	Over	Inverter has exceeded its maximum
overtemp	Temperature	allowed operating temperature.
low battery	Low Battery V	DC voltage is below Low Battery Cut-Out
voltage		(LBCO) set point.
		This error can be triggered by other
		causes. It can appear along with low ac
		output voltage, ac output shorted, or ac
		output backfeed errors.
phase loss	Phase Loss	A slave was ordered to transfer to AC by
error		the master, but no AC is present. The unit
		continues inverting. This is the only
		“Error” that is not accompanied by a
		shutdown.
high battery	High Battery V	DC voltage exceeded acceptable level
voltage		(specified on page 13).
ac output	AC Output	Inverter exceeded its maximum surge
shorted	Shorted	current due to severe overload.
ac output	AC Output	Usually indicates another AC power
backfeed	Backfeed	source (out of phase with the inverter)
		was connected to the unit’s AC output.

Possible Remedy

Check loads and measure current draw. Remove loads as necessary.

Check stacking programming and designation of master. (See page 25.)

Check for output backfeed from external source. Disconnect output if necessary.

Shut off the inverter to reduce the temperature, or add external cooling.

If this error accompanies other errors, treat those conditions as appropriate.

If it occurs by itself: Recharge the batteries. The error will clear automatically if an external AC source is connected and the inverter’s charger comes on.

Check the AC voltage on the inverter input terminals. If AC voltage is not present, problem is external. If AC voltage is present, the unit may be damaged. Contact OutBack Technical Support (see inside front cover of this manual).

Check the charging source. This problem is usually the result of external charging. This error will clear automatically if conditions are removed.

Check the loads and wiring. This issue is usually the result of a wiring problem (a short), as opposed to a poorly-sized load.

Disconnect the AC OUT wires from the inverter. Check the wires (not the inverter) with an AC voltmeter. If an AC source is present, shut it off.

900-0112-01-00 Rev B 37