MPP Solar LV 6548 User Manual page 61

Support split-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 2P1 and 2P2 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 split-phases are
matched with unit setting, they will work normally. Otherwise, the AC icon
in line mode.
LCD display in L1-phase unit
Step 5: If there is no more fault alarm, the system to split-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 L2-phase unit
LCD display in L2-phase unit
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will flash and they will not work