Outback Power Systems GS8048 manual Message Definition Possible Remedy, AC Freq Too High

Troubleshooting

Warning Messages

A Warning message is caused by a non-critical fault. When this occurs, the unit will not shut down, but the MATE3 system display will show an Event and a specific Warning message. This screen is viewed using the MATE3 Home screen’s soft keys. (See the MATE3 manual for more instructions.) One or more messages will display Y (yes). If a message says N (no), it is not the cause of the warning.

NOTE: The Radian series has no external indicators and requires the MATE3 system display to identify a Warning.

Some warnings can become errors if left unattended. Frequency and voltage warnings are meant to warn of a problematic AC source. Often the inverter will disconnect from the source. This will occur if the condition lasts longer than the inverter’s transfer delay settings. If the inverter disconnects, the warning will display as long as the source is present, accompanied by a Disconnect message. (See next page.)

Warning screens can only display warnings; they cannot clear them. The way to correct the fault may be obvious from the message.

Table 4 Warning Troubleshooting

Message	Definition	Possible Remedy
AC Freq Too High	The AC source is above the upper acceptable	Check the AC source. If it is a generator, reduce
	frequency limit (66 Hz) and prevents	its speed.
	connection.
AC Freq Too Low	The AC source is below the lower acceptable	Check the AC source. If it is a generator, increase
	frequency limit (54 Hz) and prevents	its speed.
	connection.
Voltage Too High	The AC source is above the upper acceptable	Check the AC source. The inverter’s acceptance
	voltage limit on either L1 or L2 (132 Vac	range is adjustable.
	default setting) and prevents connection.	NOTE: Adjusting the range may accommodate a
		problematic AC source, but it will not fix it.
Voltage Too Low	The AC source is below the lower acceptable	Check the AC source. Check the AC wiring. The
	voltage limit on either L1 or L2 (108 Vac	inverter’s acceptance range is adjustable.
	default setting) and prevents connection.	NOTE: Adjusting the range may accommodate a
		problematic AC source, but it will not fix it.
Input Amps > Max	AC loads are drawing more current from the	Check the loads. Oversized loads can open circuit
	AC source than allowed by the input setting.	breakers. If they exceed the inverter’s transfer
		relay size, the relay can be damaged.
		This issue is usually the result of a poorly-sized
		load, as opposed to a wiring problem.
Temp Sensor Bad	An internal inverter temperature sensor may	In the MATE3, the three readings are labeled
	be malfunctioning. One of the three internal	Transformer, Output FETs, and Capacitors.
	sensor meters may give an unusual reading.	These values are given in degrees Celsius. See
		next page.
Comm Fault	The inverter has suffered an internal	Unit still functions, but may require repair.
	communication failure.	Contact OutBack Technical Support (see inside
		front cover of this manual).

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