Delta Electronics ASDA-AB manual PIN No Signal Name Terminal Identification Grounding

Chapter 3 Connections and WiringASDA-AB Series

3.5Serial Communication Connector CN3

3.5.1 CN3 Terminal Layout and Identification

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.

Figure 3.11 The layout of CN3 Drive Connector

CN3 Terminal Signal Identification

PIN No.	Signal Name	Terminal
		Identification
1	Grounding	GND
2	RS-232 data transmission	RS-232-TX
3	RS-422 data receiving	RS-422-RX+
	RS-232 data receiving	RS-232_RX
4
	RS-422 data receiving	RS-422_RX-
5	RS-422 data transmission	RS-422-TX+
6	RS-422 data transmission	RS-422-TX-

Description

-

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

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

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

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

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

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

NOTE

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.

3-32 Revision January 2009