11. Initial Setup
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PV energy supply priority setting:
1
st
Load, 2
nd
Battery
PV will provide power to the load first and then charge battery. Feed-in to the grid is
not allowed in this mode. The grid relay is connected in Inverter mode. As a result,
the transfer time from inverter mode to battery mode will be less than 15ms
.
Overload faults are avoided as grid can supply load when the load is above 3KW.
Battery charging source:
1.
PV or Grid: If there is remaining PV power after supporting the loads, it will
charge battery first. Only if PV power is not available, will grid charge battery.
(Default)
2.
PV only: Only PV is allowed to charge battery.
3.
None: Neither PV nor grid is allowed to charge the battery.
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 power is 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 power is 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 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 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.
