Communication Installation - Goodwe HT Series User Manual

4.5 Communication Installation

4.5.1 RS485 communication
This function is only applicable to RS485 models.
The RS485 port of the inverter is used to connect to the data collector, and the total length of the
connecting cable must not exceed 1000m.
The communication cable must be separated from other power lines to avoid communication
interference.
The RS485 wiring method is shown in the diagram.
Inverter Inverter
RS485 RS485
RS485 RS485
RS485 RS485
If multiple inverters are connected together and they are connected to the data logger, the
maximum number of inverters connected in the daisy chain is 60.
Complete the RS485 communication connection according to the following steps.
Step 1: Take the communication terminal from the accessory pack and disassemble it as
shown in the diagram.
17
Inverter
Internet
Ezlogger Pro
Router
RS485 LAN
RS485
RS485
Waterproof rubber ring
Nut
Step 2: Choose RS485 shielded twisted pair wire and strip it as shown in the diagram below,
then connect the terminal and crimp it tightly.
Step 3: Insert the RS485 shielded twisted pair cable through the communication terminal
PC terminal
as shown in the diagram below, and connect it to the corresponding port according to the
wiring sequence. Then assemble the terminals and tighten them.
Step 4: Connect the communication terminal
to the inverter COM2.
6.5mm
25mm
Final result
Use tools to crimp the terminals
RS485 wiring sequence
No. Functions
1 485-A1
2 485-B1
3 485-A2
4 485-B2
5 PE
6 PE
18