User Manual

Diagram D: N line and PE line together, M series inverter;
( Applicable to Australia)
Note!
The RCD on the gure represents a leakage protection
device with a circuit breaker function.
• When power cuts suddenly, the inverter connects the N
line of EPS(Off-grid) load with the ground through relay,
providing a xed zero potential for EPS(Off-grid) load and
ensuring the safety of electricity use by users.
• Please control the inverter load and make sure it is
"output value" in "within " EPS(Off-grid) mode, otherwise
the inverter will stop and alarm overload fault".
• Please confirm with the grid operator whether there are
special regulations for grid connection.
IntroductionIntroduction
14
15
2.3 Work Modes
Self Use
The self-use mode is suitable for areas with low
feed-in subsidies and high electricity prices.
① When the power of PV is sufficient
Active Charging or Discharge time period: PV will
power the battery. When the battery is fully charged,
PV will power the load, and then sell the surplus
power to the grid.( The inverter will limit the output
if Feed-in limit or zero feed-in is needed)
(PV＞Battery charge, PV →Battery→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 at this time.
(PV＜Battery charge, PV + Grid → Battery)
Active 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)
③ Without PV power
Active Charging time period: The grid supplies the
loads and also can 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%.
①
②
①
②
③
Feed-in priority
①
②
③
The Feed-in priority mode is suitable for areas with
high feed-in subsidies, but has feed-in power
limitation.
①When the power of PV is sufficient
Active Charging time period: PV power the battery
to the set value, and then power the load, and sell the
surplus power to the grid.
If the local grid company limits the grid-connected
power of the inverter, the excess energy continues to
charge the battery.
(PV＞Battery, PV→Battery→Load→Grid → Battery)
N
BAT
Battery
N-BAR for loads
N-BAR for EPS(Off-grid) loads
EPS(Off-grid) loads
Loads
Inverter
PV 1
PV 2
E-BAR
Grid
Grid
EPS(Off-grid)
Main Breaker
Breaker
Breaker
CT
CT-R
X3-Matebox
E-BAR
N
CT-S
CT-T
RCD
The inverter can be based on different needs, there are a variety of
models.