Cabling plans for: BYD Battery-Box HVB, HVM+ and HVS+ with corresponding BCU
With BYD batteries, the battery communication can take place via the Multi I/O interface or via an RJ45 interface. SMA Solar Technology AG recommends wiring of the BYD batteries via the Multi I/O. Check prior to installation which communication interface is needed for the battery used. Note the required pin assignment for each communication interface. Incorrect interface selection or pin assignment can result in communication errors or failed commissioning.
Cabling plan for the circuitry of Sunny Tripower Hybrid X with BYD Battery-Box HVB, HVM+ and HVS+.
Pin at the MULTI I/O inverter | Signal | Terminal point at battery |
|---|---|---|
11 | CAN_H | 8 |
12 | CAN_L | 7 |
13 | EN_GND | 3 |
14 | BAT_EN | 4 |
15 | "Do not use" | - |
Cabling plan: Sunny Tripower Hybrid X with BYD Battery-Box HVB, HVM+ and HVS+.
Pin at the RJ45 connector on the inverter | Signal | RJ45 connector on the battery |
|---|---|---|
2 | EN_GND | 8 |
4 | CAN_H | 4 |
5 | CAN_L | 5 |
7 | BAT_EN | 7 |