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3.3.3 Communication connection
There are two RS485 signal ports on the inverter. Shielded cables should
be used for communication cables with the maximum length of 3280 feet.
(1) The communication of one single local inverter is to connect the RS485
communication bus cable through the RS485-1 or RS485-2 port of the inverter
directly. Wiring requirement of RS485-1/2 is shown in Table 3-9:
Table 3-9 RS485-1/2 wiring requirement
(2) The wires are labeled 1~8 from left to right, as shown in Figure 3-19:
Figure 3-19 Diagram of RS485-1/2 wiring
No.
Color
Function
1
White orange
485+
2
Orange
N.C.
3
White green
485-
4
Blue
N.C.
5
White blue
N.C.
6
Green
N.C.
7
White brown
COM
8
Brown
N.C.
