How to connect parallel solar inverter?
Parallel operation:
1- First connect the parallel cables. The parallel operation of 2 machines requires 2 parallel cables, divided into male and female, which need to be connected accordingly
2-Multiple inverters must be connected to the same battery pack
3- When paralleling, the length of the wires should be the same, positive to positive, negative to negative
4-AC input line is N-N, L-L; output is also N-N, L-L
5- PV solar panel connection: each inverter is connected to the solar panel separately, and cannot be connected with PV!
6-Before commissioning, please check the following requirements: whether the wiring is correct, make sure that all circuit breakers in the load side line are disconnected
7-(The screen displays 24 faults) Because the parallel board is inserted, a parameter needs to be changed:
Set “PAR” in program 27 on the LCD and turn off all inverters
communication succeeded interface parallel set succeeded,
communication failed interface parallel set failed interface
Note: The two machines output at the same time, you can check the power used by each. The output power of the two machines is a little different, because the length of the wire is different, the power close to the load will be relatively small, and the power farther away from the load will be higher.
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