User manual

11
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: Switch on DC breakers of three units.
Step 3: Turn on three units.
LCD display in L1-phase unit
LCD display in L2-phase unit
LCD display in L3-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 will flash and they will not work in line mode.
LCD display in L1-phase unit
LCD display in L2-phase unit
LCD display in L3-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.