Wiring For The Cn3 Communication Connector; Wiring For The Modbus Communication Connector - Delta ASDA-B3 Series User Manual

ASDA-B3

3.5 Wiring for the CN3 communication connector

3.5.1 Wiring for the MODBUS communication connector

When the servo drive is connected to the PC via CN3, you can operate the servo drive, PLC, or
HMI through MODBUS using the assembly language. The CN3 connector supports the RS-485
communication interface which enables you to connect multiple servo drives simultaneously.
Note: B3 -L model: single port (Pin 1 - Pin 8); supports RS-485 only.
Pin assignment:
Pin No.
1
2
3, 7
4
5
6, 8
Note: refer to Chapter 9 for the RS-485 wiring.
(1) CN3 connector (female); (2) CN3 connector (male)
Signal
- -
- -
GND_ISO Signal GND
RS-485- The servo drive transmits the data to differential terminal (-).
RS-485+ The servo drive transmits the data to differential terminal (+).
- -
Description
Wiring
3
3-59