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the same time. If not, it will display fault 82 in following-order inverters. However, these inverters will
automatically restart. If detecting AC connection, they will work normally.
LCD display in Master unit
Step 5: If there is no more fault alarm, the parallel system is completely installed.
Step 6: Please switch on all breakers of Line wires in load side. This system will start to provide power to the
load.
Support three-phase equipment
Step 1: Check the following requirements before commissioning:
Correct wire connection
Ensure all breakers in Line wires of load side are open and each Neutral wires of each unit are
connected together.
Step 2: Turn on all units and configure LCD program 28 as P1, P2 and P3 sequentially. And then shut down
all units.
NOET: It's necessary to turn off switch when setting LCD program. Otherwise, the setting cannot be
programmed.
Step 3: Turn on all units sequentially.
LCD display in L1-phase unit
Step 4: Switch on all AC breakers of Line wires in AC input. If AC connection is detected and three phases are
matched with unit setting, they will work normally. Otherwise, the AC icon
work in line mode.
LCD display in L1-phase unit
Step 5: If there is no more fault alarm, the system to support 3-phase equipment is completely installed.
Step 6: Please switch on all breakers of Line wires in load side. This system will start to provide power to the
load.
Note 1: To avoid overload occurring, before turning on breakers in load side, it's better to have whole system
in operation first.
Note 2: Transfer time for this operation exists. Power interruption may happen to critical devices, which
cannot bear transfer time.
LCD display in Slave unit
LCD display in L2-phase unit
LCD display in L2-phase unit
54
LCD display in L3-phase unit
will flash and they will not
LCD display in L3-phase unit
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