Delta Electronics ASDA-B Series 사용자 설명서

Chapter 3  Connections and Wiring|ASDA-B Series 

Revision January 2009 

 

3-25 

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

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

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

interfaces: RS-232, and RS-485 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 interface can 

allow longer distance for transmission and support multiple drives to be connected simultaneously.  

CN3 Drive Connector

Pin No 

Signal Name 

Terminal 

Identification 

Description 

1 RS-485- 

RS-485- 

For data transmission of the servo drive. 
Connected to the RS-485- interface of PC.  

2 Signal 

power  +5VD 

 

3 RS-485+ 

RS-485+ 

For data transmission of the servo drive.  
Connected to the RS-485+ interface of PC.  

4 

RS-232 data 
receiving 

RS-232-RX 

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

5 

RS-232 data 
transmission 

RS-232-TX 

For data transmission of the servo drive.  
Connected to the RS-232 interface of PC. 
Please refer to section 3.5.2. 

6 

RS-232 / RS-485 
data format 
selection  

SEL232 / 485 

RS-232 & RS-485 data format selection 
For RS-485 connection, connect SEL232/485(Pin6) 
to GND(Pin8). For RS-232 connection, do not 
connect SEL232/485(Pin6) to GND(Pin8). 

7 

Re-flash 
selection 

Boot_Load 

Boot_Load terminal for DSP Reflash burn-in 
selection (Do not connect this terminal). 

8 Grounding 

GND 

 

 

1)  In order to avoid the communication error, if the users use their own communication connector, 

ensure the circuit between the connector case and all pins is not closed.