User Manual

IntroductionIntroduction
In case of power failure, the system will power EPS
loads through PV and battery.
(Battery must be installed for this mode)
①When the power of PV is sufficient
PV will power the loads rstly, and surplus power
will charge to the battery.
(PV＞Load, PV → Load → Battery)
②When the power of PV is insufficient
The remaining power will be taken from the battery.
(PV＜Load, PV → Load → Battery)
③ Without PV power
The battery will power the emergency loads until
the battery reached the min SOC, then the inverter
will enter into the idle mode.
(PV=0, Battery → Load)
EPS(off-grid) SOC-min condition is adjustable within
the range of 10%-25%.
EPS(Off-grid) mode
Backup mode
The back-up mode is suitable for areas with
frequent power outages.
Same working logic with “Self-use” mode. This
mode will maintain the battery capacity at a
relatively high level. (Users' setting) to ensure
that the emergency loads can be used when the
grid is off. Customers no need to worry about the
battery capacity.
Battery min SOC can be set:30%-100%.
Charge battery to min SOC can be set:30%-100%.
①
②
③
①
②
③
①
②
①
②
Note: in the case of grid connection, all working modes work normally
when the battery SOC >5%. When the Min SOC of the system - the actual
SOC of the battery > 5%, PV or Grid will force the battery to charge to Min
SOC +1%, and then return to the normal working mode set by the user.
③Without PV power
Active Charging time period: The grid will power
the home loads and also charge the battery;
(PV=0 , Grid → Load + Battery)
Active Discharge time period: The battery will
power the home loads rstly. If the battery power
is not enough, the remaining power will be taken
from the grid. The inverter will enter into the
standby state.
(PV=0, Battery+Grid → Load)
Battery min SOC can be set: 10%-100%;
Charge battery to min SOC can be set:10%-100%.
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2.4 Dimension
Feed-in priority
①
②
③
Active Discharge time period: PV will power the
loads rstly,and surplus power will feed-in to the
grid.
(PV＞ Load, PV → Load → Grid )
②When the power of PV is insufficient
Active Charging time period: PV will power the
battery and the remaining power will be taken from
the grid when PV is not enough. PV and grid power
will charge the battery until it reaches the set value.
And then PV will power the load and the remaining
power will be taken from the grid when PV is not
enough. The battery will not discharge.
(PV＜ Battery charge, PV + Grid → Battery)
Discharge time period: PV+BAT will power the
loads together.
If the power is still not enough, the remaining
power will be taken from the grid.
(PV＜ Load, PV + Battery + Grid → Load)
Note: when the actual SOC of the battery is ≤ Min SOC, if the mains
power is lost, the inverter will not enter the EPS (Off-grid) mode. The
inverter is in EPS Waiting state, at which time the PV will charge the
battery. When the battery capacity reaches 31%, the machine will
automatically enter EPS (Off-grid) mode.
199mm
503mm
503mm