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3. Under
Voltage
Indicator
The under voltage indicator indicates that the Inverter has shut down because the protection circuits have sensed the
DC input voltage is lower than that recommended for safe operation.
4. Over Temp Indicator
The over temp indicator indicates that the Inverter has shut down because the thermal protection circuits have sensed
the Inverter has become overheated. The Inverter may overheat because it has been operated at power levels above
its rating, or because it has been installed in a location which does not allow it to dissipate heat properly.
The power inverter will restart automatically once it has cooled down. If the Inverter continues to shut down, reduce the
load, and check the ambient temperature.
5. Overload
Indicator
The overload indicator indicates that the Inverter has shut down because its output circuit has been short circuited, or
drastically overloaded. Switch the ‘ON/OFF’ switch to ‘OFF’, correct the fault condition, and then switch the ‘ON/OFF’
switch back to ‘ON’.
L. Green Power Adjustment
The Inverter features automatic load-sensing, which means it will wait in Standby Mode until an AC load is switched
‘ON’. When an AC load appears, the Inverter will immediately start. This feature conserves valuable battery energy as
the Inverter uses only about 10% of normal power when in Standby Mode (Standby Mode is indicated by flashing
GREEN indicator). The amount of AC power required to start the Inverter can be adjusted on the front panel. Follow the
procedure below. Ensure the battery voltage is at the nominal 12V level.
1. Adjusting Load Sensitivity for Green Power Mode
•
Turn ‘OFF’ all AC loads, keeping the AC wiring connected to the Inverter AC output. Some loads such as TVs
must be turned ‘OFF’ at the power point as they can still represent a small load to the Inverter.
•
Using a small screwdriver, adjust the black plastic trim pot located to the right of the over voltage indicator and to
the left of the power switch. Turning this control fully clockwise will override the Standby circuit and keep the
Inverter ‘ON’ all the time. This could be used if you have a very small load that must stay ‘ON’ at all times.
•
Adjust the trim pot until the indicator is a steady GREEN; then turn the trim pot back a little until the indicator
flashes GREEN. Allow 10 seconds between adjustments for stabilisation: clockwise decreases the sensitivity or
threshold; counter-clockwise is increases the sensitivity or threshold.
•
Note:
the trim pot is extremely sensitive.
•
When the indicator flashes GREEN, the Inverter is in Standby Mode.
•
Turn ‘ON’ the smallest AC load connected to the Inverter. The Inverter should now deliver 240VAC, and AC status
indicator should be a steady GREEN. However, if the indicator is ORANGE the sensitivity must be increased by
turning the control trim pot a little counter-clockwise.
•
Now turn ‘OFF’ the AC load. The indicator should return to flashing GREEN, indicating that the Inverter is in
Standby Mode. If this does not occur, reduce sensitivity by turning the control trim pot
a little clockwise and check
again.
M. Trouble Shooting:
1. AC Output Does Not Remain ‘ON’
If Green Power Mode is being used, some AC loads may not be large enough to hold the Inverter ‘ON’. This condition
is indicated by the Inverter turning ‘OFF’ after every eight to ten seconds, then back ‘ON’ again. The AC Status
indicator will also be flashing ORANGE.
There are two possible solutions:
•
Increase the sensitivity of the inverter by turning the Standby control slightly counter-clockwise until the indicator
is a steady GREEN; or
•
Increase the amount of AC load on the Inverter.
