Delta Electronics ASDA-B Series manual CN3 Terminal Signal Identification

Chapter 3 Connections and WiringASDA-B 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. 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.

Figure 3.9 The layout of CN3 Drive Connector:

4

1

3

6

2

5

8

			7
	CN3 Drive Connector
				CN3 Terminal Signal Identification
Pin No	Signal Name			Terminal	Description
				Identification
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		RS-232-RX	For data receiving of the servo drive.
					Connected to the RS-232 interface of PC.
	receiving
	RS-232	data			For data transmission of the servo drive.
5				RS-232-TX	Connected to the RS-232 interface of PC.
	transmission				Please refer to section 3.5.2.
	RS-232 / RS-485				RS-232 & RS-485 data format selection
					For RS-485 connection, connect SEL232/485(Pin6)
6	data	format		SEL232 / 485
					to GND(Pin8). For RS-232 connection, do not
	selection
					connect SEL232/485(Pin6) to GND(Pin8).
7	Re-flash			Boot_Load	Boot_Load terminal for DSP Reflash burn-in
	selection				selection (Do not connect this terminal).
8	Grounding			GND

NOTE

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.

Revision January 2009 3-25