Serial Communication Connector Cn3; Cn3 Terminal Layout And Identification; The Layout Of Cn3 Drive Connector - Delta Electronics ASDA-B Series User Manual

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 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:
Pin No Signal Name
1 RS-485-
2 Signal power
3 RS-485+
RS-232
4
receiving
RS-232
5
transmission
RS-232 / RS-485
6 data
selection
Re-flash
7
selection
8 Grounding
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
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CN3 Drive Connector
CN3 Terminal Signal Identification
Terminal
Identification
RS-485-
+5VD
RS-485+
data
RS-232-RX
data
RS-232-TX
format SEL232 / 485
Boot_Load
GND
Chapter 3 Connections and Wiring|ASDA-B Series
Description
For data transmission of the servo drive.
Connected to the RS-485- interface of PC.
For data transmission of the servo drive.
Connected to the RS-485+ interface of PC.
For data receiving of the servo drive.
Connected to the RS-232 interface of PC.
For data transmission of the servo drive.
Connected to the RS-232 interface of PC.
Please refer to section 3.5.2.
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).
Boot_Load terminal for DSP Reflash burn-in
selection (Do not connect this terminal).
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