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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 (12.5Vdc for 12Vdc, 25Vdc for 24Vdc, 51Vdc for 48Vdc), the inverter will first carry
out a cycle of bulk charging and absorb 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 (13.5Vdc for 12Vdc, 27Vdc for 24Vdc, 54Vdc for 48Vdc), the inverter will go to battery
priority mode again.
2.5.11 Auto Generator Start
The inverter can start up generator when battery voltage goes low.
When the inverter goes to low battery alarm, it will send a signal to start a generator and turn the generator
off after battery charging is finished.
The auto gen start feature will only work with generators which have automatic starting capability. The generator
must have start and stop controls [i.e., an electric starter and electric choke (for gasoline units)], and the safety
sensors to be able to start and stop automatically.
There is an open/close relay (constant open) that will close and short circuit the positive and negative cables from
a generator start control. The input DC voltage can vary, but the max current the relay can carry is 16Amp.
The Auto Generator Start terminal pins are not polarized.
In addition, these two pins can also be used as dry contacts to send out “Low Battery Voltage” signal to an
external alarm device.
This AGS relay can also carry AC voltage within its capacity.
This inverter will skip the float charging when it is set at battery priority mode, so that the generator will no
longer be kept running to maintain a small charge on the batteries.
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