Outback Power Systems GS4048A Operators Manual - Manual (Page 53)

Troubleshooting
900-0161-01-00 Rev A 51
Table 6 Troubleshooting
Symptom Possible Cause Possible Remedy
Conflicting AC sources. Priority
input is interfering with
secondary input.
If AC is present on the priority input, the inverter will not connect
to AC on the second input. This is true even if the first input is not
connected for other reasons (programming, low power quality).
Low charge rate.
Charge complete or nearly
complete.
Check the DC voltage and charging stage using the MATE3, if
present. Confirm with DC voltmeter.
MATE3’s DC meter reads
significantly higher than actual
battery voltage.
Check the DC voltage on the inverter’s DC terminals. If different
from the MATE3 reading, the inverter could be damaged.
Otherwise, check the DC voltage on batteries with a voltmeter. If
different from the reading on the inverter, this could be a DC
connection problem.
High output loads. If total loads and charge exceed the AC input setting, charge rate
decreases to give priority to the loads. Turn off some of the
output loads and test the charge rate again.
High temperature. The inverter will reduce the current rate for charging and other
activities if the internal temperature exceeds a certain level.
Check temperature readings and allow the inverter to cool if
necessary. (See page 57.) External cooling may also be applied.
Will not charge.
No AC input. See “Will not connect to AC” category.
Charger set to Off. MATE3 system display only: Check the Charger Mode screen with
the CHARGER hot key and set to On or Auto. (If this setting was
intentional, then no action is required.)
Grid Zero mode in use. MATE3 system display only: The charger is inoperative in Grid Zero
mode. (If this setting was intentional, then no action is required.)
Will not sell power
to the utility grid.
Grid-tied function has been
manually disabled. MATE3 system display only: Check the Grid-Tie Enable setting in
the Grid-Tie Sell menu. Confirm it is set to Y.
Grid Tied mode not in use on
the appropriate input.
MATE3 system display only: Check the Inverter part of the Settings
menu to see if Grid Tied mode is in use. Confirm that it has been
selected for the correct Radian input terminals.
AC source does not meet
requirements; this item is
usually accompanied by
disconnecting from the
utility grid when in Grid Tied
mode.
Verify grid voltage and frequency. Determine if they are within
the inverter’s approved limits. If not, the inverter is operating
correctly. Contact the utility company if necessary.
MATE3 system display only: The program limits are found in the
inverter’s Grid Interface Protection menu. See the Grid Tied
mode beginning on page 15 for more information on this menu.
The inverter has other criteria
besides the AC source which
must be met, such as the
qualifying time.
MATE3 system display only: Check Sell Status screen using the
Home screen’s soft keys. The inverter may be operating correctly.
Depending on the conditions which need to be met, the delay
may be temporary,
The inverter will perform the
Offset function before
attempting to sell.
Output loads can consume all excess renewable power if they are
large enough. (The Offset function “sells to the loads.”) Turn off
some output loads and observe the sell operation.