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controlled freely, though it can be set. Details refer to the below
instructions.
OUTPUT
Inverter Priority
PV power is sufficient (namely, extra energy exists except charging
the battery), PV supplies the load as a priority. When PV power is
insufficient, the battery supplies the load as a supplement. When the
battery voltage is lower than LVD, the utility supplies the load as a
supplement.
Note: LVD and LVR settings refer to Item 7 on the Standard interface
for common users.
Utility Priority
Utility supplies the load as a priority.
When the utility is abnormal, the PV supplies the load as a
supplement. When PV power is insufficient, the battery supplies the
load as a supplement.
Scenario A: Both PV and utility are not available.
（
A
）
PV
Utility
Regardless of the input and output sources, the working mode is as follows.
Before the battery voltage drops to the LVD
point, the battery supplies the load.
Scenario B: PV is available, but the utility is not available.
（
B
）
PV
Utility
Regardless of the input and output sources, the working mode is as follows.
Scenario C: Both PV and utility are available.
（
C-1
）
Input:
Solar only
Output:
Inverter Priority
❶
When P
PV
> P
Load
, PV charges the
battery and supplies extra power to the
load.
❷
When P
PV
≤
P
Load
, PV stops charging
the battery. Instead, it supplies the load
together with the battery.
❸
When V
Battery
≤ V
LVD
, only PV charges
the battery.
