Revision May, 2018     8-1 
Chapter 8 Communications 
8.1  RS-485 / RS-232 Communication Hardware Interface 
This servo drive supports the serial communication of RS-485 and RS-232. 
Communication function enables the servo drive to access and change parameters inside 
the system. However, RS-485 and RS-232 cannot be used at the same time. Parameter 
P3-05 can use RS-485 and RS-232 as the communication protocol. Followings are the 
wiring description. 
RS-232 
  Configuration 
 
 
NOTE
 
(1) 15-meter communication cable is suitable for less interference 
environment. If the transmission speed is over 38400bps, the length 
of communication cable should be shorter than 3 meters so as to 
ensure the accuracy of transmission. 
(2) Numbers shown in the above diagram represent the pin number of 
each connector.