FSP HySpirit series User Manual
26
http://www.fsp-group.com.tw/en/product/PVInverter.html
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 in 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 5KW
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: PV power is only allowed 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.
Load supply source:
When PV power is available: 1
st
PV, 2
nd
Battery, 3
rd
Grid
PV power will provide power to the load first. If it’s not sufficient, battery power will back up the
load. Only after battery power is running out, Grid will back up the load.
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: 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.
