HYBRID INVERTER | Installer Manual
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PLEASE NOTE
Do not alter these settings too often on the same battery, as it may damage the battery.
Gen Charge:
Uses the GEN input of the system to charge the battery bank from an attached generator.
Gen Signal:
Normally open (NO) relay that closes when the Gen Start signal state is active.
Gen Max Run Time:
This indicates the longest time the generator can run in one day. When the maximum
running time is reached, the generator will be turned off. ‘24H’ means the generator will run continuously.
Gen Down Time:
This indicates the delay-time of the generator to shut down after it has reached the
running time
Grid Charge:
It indicates that the grid will charge the battery.
Grid Signal:
This indicates when the grid should no longer charge the battery.
Recommended battery settings:
Battery Type
Absorption Stage
Float Stage
Voltage (every 30 days 3hr)
AGM (or PCC)
14.2V (57.6V)
13.4V (53.6V)
14.2V (57.6V)
Gel
14.1V (56.4V)
13.5V (54.0V)
Wet
14.7V (59.0V)
13.7V (55.0V)
14.7V (59.0V)
Lithium
Follow its BMS voltage parameters
A generator can either be connected to the Grid side or to the Gen connection. When connected to the Grid
Input, the inverter will consider the power coming from the generator as ‘Grid Supply'. Users should ensure
this power goes to the LOAD only and should not be exported to other outlets, as this will damage the gen-
erator.
An advantage of connecting the generator to the Grid Input is that it can be paralleled, whereas the GEN/
AUX input cannot be paralleled. That means the inverter will extract what power it requires from ‘Grid Supply’
to charge its batteries.
If the generator is connected to the inverter and a generating signal exists, the inverter will switch 100% of
the load to the generator and then slowly increase the charging currents to the batteries. Therefore, the
generator must be able to supply both the charge current and the total load current.
The generator can be controlled via a relay with a set of dry-contacts to enable remote control. The current
on the contacts is limited to approximately 1Amp 12V.
Below is a simple reference circuit of an auto-start system that can auto-start generators on a boat. (Sunsynk
will be releasing a new OS E406 ( Auto-Start ) for better generator control).
