This is an old revision of the document!
Communication connection
Bottom view
| No. | Description |
|---|---|
| 1 | DC waterproof tube + |
| 2 | DC waterproof tube - |
| 3 | Ethernet waterproof terminal |
| 4 | RS-485 waterproof terminal |
| 5 | R-EPO waterproof terminal |
| 6 | AC waterproof tube |
| 7 | AC disconnect |
| 8 | Fan box |
PWS2-30K-NA has two different communication interfaces: Ethernet and RS-485, meanwhile, there is a remote emergency power off terminal.
At a same time, the PWS2-30K-NA can only be configured to communicate with the EMS via Ethernet, or RS-485, refer to HMI operation for more information
Ethernet cable connection
PWS2-30K-NA can be directly controlled through Ethernet for remote control. Through networking, users can remote dispatch energy, monitor operation status, and set parameters with MODBUS TCP/IP protocol.
The pinout of a standard T-568B straight-through ethernet cable:
| Pin | Color |
|---|---|
| 1 | white/orange |
| 2 | Orange |
| 3 | white/green |
| 4 | blue |
| 5 | white/blue |
| 6 | green |
| 7 | white/brown |
| 8 | brown |
- Penetrate network cable whose insulating layer is stripped into the waterproof cap and insert it into RJ45 connector after being arranged in order;
- Use wire crimpers to compress the connector;
- Screw out the cap on the waterproof Ethernet terminal at the bottom of the inverter;
- Insert the ready-made cable into Ethernet terminal.
RS-485 cable connection
PWS2-30K-NA can be connected to 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. RS-485 is connected through RJ45 connector. The definition of the pin of RJ45 connector is shown in the following image. The connection steps are the same as Ethernet cable.
Remote EPO connection
A remote EPO switch can be connected to the R-EPO RJ45 port.
THE R-EPO IS A NORMAL CLOSED CONTACT. IT SHOULD BE CONNCTED TO A NC SWITCH OR BUTTON. IF NO REMOTE EPO IS NEEDED, PLEASE DISABLE THE EPO FUNCTION IN HMI.