Power Save Override ON/OFF (SW3):
Under the Battery Priority Mode (SW5 in position “1”), the inverter can be switched between two
modes: Power Saver Mode (SW3 in position “1”) and Unit Off Charging Mode (SW3 in position
“0”). The power Switch should be in “Power saver on” position all the time for using these func
-
tions. In Power Saver Mode, the inverter is initially in standby mode and sends a pulse to detect
the presence of a load every 3 seconds. Each pulse lasts for 250ms. The inverter will remain in
standby mode until a load has been detected. Then it will wake up from standby mode and start to
invert electricity from the battery bank to supply the load. As this function is under Battery Priority,
the inverter will always prefer to invert electricity from battery first even there is a qualified AC input
present. Only when the battery voltage is lower than the low voltage alarm point, will the inverter
switch to AC input power to charge the battery and supply the load at the same time.
This Power Saver Mode can be changed to Unit Off Charging mode via SW3 by switching it to “0”
position (SW5 still in “1”). “Unit Off Charging” will enable the inverter charger to charge batteries
as much as possible while without discharging them. In “Unit Off Charging” mode, the inverter will
stay in standby mode without sensing loads. It won’t output any power even if a load is turned on,
and only stay idle in this mode when there is no AC input.When a qualified AC input is present, it
will start charging the battery and transfer power to loads.This feature is ideally suitable for appli-
cations where energy conservation for batteries is required. Charging will be activated once qual-
ified AC exists, while discharging is disabled.
The inverter only consumes as little as 3 watts in “Unit Off Charging” mode
.
Output Frequency(SW4):
The output frequency of the inverter can be set at either 50Hz or 60Hz by SW4 which make the
inverter charger an international models for most electricity systems.
AC/Battery Priority (SW5):
The Auto Power Inverter Charger is designed with AC/Battery priority switch (DIP switch #5).
Switch the battery priority selector to Position “0” for AC priority mode, Position”1” for battery
priority mode. In AC priority mode, when AC input is present, the battery will be charged first, and
the inverter will transfer the input AC to power the load. Only when the AC input is stable for a
continuous period of 15 days will the inverter start a battery inverting cycle to protect the battery.
After 1 normal charging cycle ac through put will be restored.
When you choose battery priority, the inverter will invert from battery despite the AC input.
When the battery voltage reaches the low voltage alarm point which is (0.5Vdc for 12V, 1Vdc
for 24V, 2V for 48Vdc) higher than “Low Battery Trip Point”, the inverter will transfer to AC input,
charge battery, and switch back to battery when the battery is fully charged. This function is main-
ly for wind systems using utility power or generator as back up.
The AC/Battery Priority function can be activated by sliding the switch even when the inverter is in
operation.
Note: In battery priority mode, when qualified AC inputs for the first time and the battery
voltage is below 12.5Vdc, the inverter will first carry out a cycle of bulk charging and ab-
sorb charging, the inverter will not go into float charging mode.
Choosing the battery type selector to “0” will disable the built-in battery charger while
still allow transfer through. When battery charger is disabled, if the battery is charged by
external DC power to 13.5Vdc, the inverter will go to battery priority mode again.
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