Chapter 2; Gpd315 Modbus Rtu Connections; Wiring; Figure 2-1 Location Of Terminals And Dip Switches - YASKAWA GPD 315/V7 Technical Manual

GPD315 Modbus RTU Connections

Wiring

Locate terminals S+, S-, R+, and R- on the control terminal block.

Figure 2-1 Location of Terminals and Dip switches

Twisted pair, shielded wire should be used for all RS-485 connections. The shielded wire should
be separated and connected per the drawing below to eliminate interference due to noise.
S+/R+
-
S-/R- Two Wire RS-485
GPD315 Modbus RTU Technical Manual TM 4325

Chapter 2

Outer Jacket
S+/R+
S-/R-

Figure 2-2 Shielded Wire Termination

R+ R-
S+ S-
Outer Jacket
S+
S-
R+
Four Wire RS-485
R-
Shiel
S+
S-
R+
R-
2
Page