25
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: 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.
Off-Grid (III)
PV energy supply priority setting: 1
st
Load, 2
nd
Battery
PV power will provide power to load first and then charge battery. Feed-in to the
grid is not allowed under this mode. The grid relay is NOT connected in Inverter
mode. That means the transfer time from inverter mode to battery mode will be
about 15ms. If connected load is over 10KW and grid is available, this inverter will
allow grid to provide power to the loads and PV power to charge battery.
Otherwise, this inverter will activate fault protection.
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.
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.
NOTE:
It’s allowed to set up AC charging duration.