wiring, please refer to 2.4.3 Wiring Diagram.
Parallel connection in three-phase: ensure N-to-N and PE-to-PE connection for all solar storage inverters. The
L lines of all inverters connected to the same phase need to be connected together. But L lines of different
phases cannot be joined together. Other connection precautions are the same as parallel connection in single
phase. For specific wiring, please refer to 2.4.4 Wiring Diagram.
4. GRID wiring:
Parallel connection in single phase: ensure L-to-L, N-to-N and PE-to-PE connection for all solar storage
inverters, and that the connection is correct with the same wiring length and line diameter before power on,
so as to avoid the abnormal operation of parallel system output caused by wrong connection. Meanwhile, it is
not allowed to have multiple different AC source inputs to avoid damage to the external equipment of the
inverter. The consistency and uniqueness of AC source input shall be ensured. For specific wiring, please refer
to 2.4.3 Wiring Diagram.
Parallel connection in three-phase: ensure N-to-N and PE-to-PE connection for all solar storage inverters. The
L lines of all inverters connected to the same phase need to be connected together. But L lines of different
phases cannot be joined together. Other connection precautions are the same as parallel connection in single
phase. For specific wiring, please refer to 2.4.4 Wiring Diagram.
5. Wiring of parallel communication line:
Our parallel communication cable is a shielded 10Pin network connection cable, which can be used for single-
phase or three-phase parallel connection. Each machine must be connected with one out and one in. This
means that the machine "Parallel_A" is connected to the machine to be parallelized "Parallel_B", and that the
machine "Parallel_A" is not allowed to connect to the "Parallel_B". "Parallel_B" or "Parallel_A" is connected to
the machine to be parallelized "Parallel_A". At the same time, the parallel communication cable of each
machine should be fastened with 10Pin network connection cable to avoid disconnection or poor contact of
the parallel communication cable, which may cause abnormal operation or damage to the system output.
6. Before and after connecting the system, please check the following system wiring diagrams in detail to ensure
that all wiring is correct and reliable before powering on.
7.
After the system is wired, powered on and in normal operation, if a new inverter needs to be connected, make
sure to disconnect the battery input, PV input, AC input and AC output, and that all solar storage inverters are
powered off before reconnecting into the system.
4.9.3 Schematic diagram of parallel connection in single phase
1. The parallel communication line and current sharing detection line of the solar storage inverter need to be
locked with screws after connecting. The schematic diagram is as follows:
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