24 User Manual UM0007_ASW3000-5000H-S_EN_V01_0321
3
）
At night, there is no photovoltaic,
and the battery supplies power to
the load.
4
）
In case of power failure, switch to
off grid, and off grid load can still
work normally
5.3.2 Back-up
Battery as a backup power supply, always keep sufficient energy,
power supply to the load when GRID failure.
Load priority
：
batter>load> GRID
When the photovoltaic energy is enough, first charge the battery,
then supply power to the load, and finally go online.
Power priority
:PV> GRID
When the load power is too large, first from the photovoltaic
energy, and then use the power grid. Under normal conditions,
Evening
PV
BAT
EPS
AC
Morning
PV
BAT
EPS
AC