8-3 
 
8-1 RS-485 Communication Function 
This Servo Driver provides RS-485 Communication Function and the following describes the 
communication wiring and communication protocol. 
 
8-1-1 RS-485 Communication Wiring 
CN4 Wiring Method 
 
 
Driver end uses MD-Type 8Pins  RS-485 converter
 
Pin 
Number
Pin Name Symbol
1
2
3
4
5
6
7
8
Signal Grounding
GND
D+
D-
Serial Data Transmission +
Serial Data Transmission -
Pin Name Symbol
Power Input Positive Terminal
Serial Data Transmission -
Serial Data Transmission +
Power Input Ground Terminal
D+
D-
+ VS
GND
Power Supply
 
 
 
Servo Driver CN4 
USB/RS-485 converter 
Personal Computer