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Battery charging source:
1.
PV and Grid (Default)
It’s allowed to charge battery from PV power first. If it’s not sufficient, 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 from PV power or grid.
Load supply source:
When PV power is available: 1
st
PV, 2
nd
Grid, 3
rd
Battery
If battery is not fully charged, PV power will charge battery first. And remaining PV
power will provide power to the load. 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 (Default)
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.
Grid-tie with backup (II) :
