Installing Internal Communication Cables; Installing Internal Dc Power Cables; External Electrical Connections Of The Battery; Installing An External Bms Cable - Pytes HV48100 User Manual

5.1.2 Installing Internal communication cables

Step 1 Connect the Link 1 port of the first battery on the top to the next battery Link 0 port.
Step 2 Repeat step 1, make sure the connection from the former battery Link 1 port to later
battery Link 0 port.
Step 3 Connect Battery communication port of BCU with Link 0 port of the first Battery
module.

5.1.3 Installing internal DC Power cables

Step 1 Connect the first battery negative terminal(B-) with second battery positive terminal
(B+) with battery power cable.
Step 2 Repeat Step 1 in order from top to bottom connect all battery modules in series.
Step 3 Connect the negative terminal (B-) of BCU with last battery negative terminal (B-) with
negative battery power cable.
Step 4 Connect the positive terminal (B+) of BCU with first battery positive terminal (B+) with
positive power cable.

5.2 External Electrical Connections of the Battery

5.2.1 Installing an external BMS cable

Step 1 Connect RS485/CAN port of BCU and Inverter BMS port with BMS cable.
Note:
Different Inverter will have different Communication protocol and Pin layout, consult installer for right one.
Port definition and Pin layout of BCU:
No.
1
2
3
4
5
6
7
8

5.2.2 Installing external DC power cable

Step 1 Connect Negative External power terminal (P-) of BCU with inverter Negative Battery
terminal (-).
Step 2 Connect Positive External power terminal (P+) of BCU with inverter Negative Battery
terminal (+).

5.3 Installing the Antenna

Step 1 Connect the Antenna cable with WiFi Port on BCU.
CAN
CAN_H
CAN_L
24
RS485
485_A
485_B
RS232
TX
GND
RX