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PV energy supply priority setting: 1
st
Load, 2
nd
Battery
PV power will provide power to the load first and then charge battery. Feed-in to
the grid is not allowed under this mode. At the same time, the grid relay is
connected in Inverter mode. That means the transfer time from inverter mode to
battery mode will be less than 15ms. Besides, it will avoid overload fault because
grid can supply load when connected load is over rated output capacity of the
inverter.
Battery charging source:
1.
PV or Grid: If there is remaining PV power after supporting the loads, it will charge
battery first. Only until PV power is not available, grid will charge battery. (Default)
2.
PV only: It is only allow PV power to charge battery.
3.
None: It is not allowed to charge battery no matter it’s PV power or grid.
Load supply source:
When PV power is available:
1.
1
st
PV, 2
nd
Battery, 3
rd
Grid (Default)
PV power will provide power to the load first. If it’s not sufficient, battery power will
provide power to the load. When battery power is running out or not available, grid
will back up the load.
2.
1
st
PV, 2
nd
Grid, 3
rd
Battery
PV power will provide power to the load first. If it’s not sufficient, grid will provide
power to the load. If grid is not available at the same time, battery power will back
up.
When PV power is not available:
1.
1
st
Grid, 2
nd
Battery
Grid will provide power to the load at first. If grid is not available, battery power will
provide power backup.
2.
1
st
Battery, 2
nd
Grid (Default)
Battery power will provide power to the load at first. If battery power is running out,
grid will back up the load.
NOTE: This option will become ineffective during AC charging time and the priority
will automatically become 1
st
Grid and 2
nd
Battery order. Otherwise, it will cause
battery damage.
