Serial Communication Connector Cn3; Cn3 Terminal Layout And Identification - Delta ASDA-A2 Series User Manual

Chapter 3 Connections and Wiring|ASDA-A2 Series
3.5

Serial Communication Connector CN3

3.5.1 CN3 Terminal Layout and Identification

The servo drive can be connected to a PC or controller via this serial communication connector CN3.
Users can operate the servo drive through PC software supplied by Delta. 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.
Figure 3.9 The layout of CN3 Drive Connector
PIN No.
1 Grounding
2 RS-232 data transmission
3 -
4 RS-232 data receiving
5 RS-485 data transmission
6 RS-485 data transmission
NOTE
1) For the connection of RS-485, please refer to page 9.3.
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.
3-34
CN3 Terminal Signal Identification
Signal Name
Terminal
Identification
GND Ground
For data transmission of the servo drive.
RS-232_TX
Connected to the RS-232 interface of PC.
- Reserved
For data receiving of the servo drive.
RS-232_RX
Connected to the RS-232 interface of PC.
For data transmission of the servo drive
RS-485(+)
(differential line driver + end)
For data transmission of the servo drive
RS-485(-)
(differential line driver - end)
Description
Revision April, 2010