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3.6.6 Connection of communication cables
PWS2-30M-EX has two different communication interfaces: Ethernet and RS-485.
(1) Ethernet cable connection
PWS2-30M-EX can be directly networked through Ethernet and connected to PC for
communication. Through networking, users can remote dispatch energy, monitor operation
state, and set parameters with background software in PC. The definition of RJ45
connector pin is shown in Fig. 3-6.
1 2 3 4 5 6 7 8
RJ45 connector
RJ45
1 2 3 4 5 6 7 8
Pin1:Orange&white
Pin2:Orange
Pin3:Green&white
Pin4:Blue
Pin5:Blue&white
Pin6:Green
Pin7:Brown&white
Pin8:Brown
Fig. 3-6 Ethernet interface
Step 1: Penetrate network cable whose insulating layer is stripped into the waterproof cap
and insert it into RJ45 connector after being arranged in order;
Step 2: Use wire crimpers to compress the connector;
Step 3: Insert the finished cable into the "Ethernet" port of the inverter panel.
Step 4: Insert the ready-made cable into Ethernet terminal.
Step 5: Lock the waterproof cap.
(2) RS 485 cable connection
PWS2-30M-EX can be connected to BMS/EMS through RS-485 to obtain battery
information and energy dispatching command and complete automatic charging and
discharging control and protection of energy storage system. The port is a 3.81MM pitch
pluggable terminal block with a spacing of 3.81 8P.
Insert the communication cable into the terminal block, lock the terminal, and access the
communication port according to the sequence of the operation panel.
WARNING
Only qualified professional can conduct wiring work.
3.6.7 EPO connection
The R-in+ interface and R-in-interface can be used as the EPO interface, which is a
3.81MM pitch pluggable terminal block.
The EPO function can be enabled or disabled by setting the contents of the 0x0148
address register to 1 or 0. When the EPO function is enabled, you needs to short the R-
in+ interface to the R-in-interface to maintain the normal operation of the PWS2-30M-EX.
