Delta Electronics ASDA-AB Benutzerhandbuch

Chapter 3  Connections and Wiring|ASDA-AB Series

 

3-32  

 

Revision January 2009

The servo drive can be connected to a PC or controller via a serial communication connector. Users can 

operate the servo drive through PC software supplied by Delta (contact to the dealer). The 

communication connector/port of Delta servo drive can provide three common serial communication 

interfaces: RS-232, RS-485, and RS-422 connection. RS-232 is mostly be used but is somewhat limited. 

The maximum cable length for an RS-232 connection is 15 meters (50 feet). Using RS-485 or RS-422 

interface can allow longer distance for transmission and support multiple drives to be connected 

simultaneously.  

PIN No. 

Signal Name 

Terminal 

Identification 

Description 

1 Grounding 

GND 

- 

2 RS-232 

data 

transmission RS-232-TX 

For data transmission of the servo drive. 
Connected to the RS-232 interface of PC. 

3 RS-422 

data 

receiving 

RS-422-RX+ 

For data receiving of the servo drive  
(differential line driver + end) 

RS-232 data receiving 

RS-232_RX 

For data receiving of the servo drive. 
Connected to the RS-232 interface of PC. 

4 

RS-422 data receiving 

RS-422_RX- 

For data receiving of the servo drive   
(differential line driver - end) 

5 RS-422 

data 

transmission RS-422-TX+ 

For data transmission of the servo drive 
(differential line driver + end) 

6 RS-422 

data 

transmission RS-422-TX- 

For data transmission of the servo drive 
(differential line driver - end) 

 

1)  For the connection of RS-485, please refer to page 8.2 and 8.3.  
2)  There are two kinds of IEEE1394 communication cables available on the market. If the user uses 

 one kind of cable, which its GND terminal (Pin 1) and its shielding is short-circuited, the 
communication may be damaged. Never connect the case of the terminal to the ground of this kind 
of communication cable.