Internal Communication For Master Control; Slave Drives Settings; Master Drives Settings - Delta C2000 series User Manual

16-10 Internal Communication for Master
Control
The 'Internal Communication' function is designed and developed for the applications where
CANopen communication is not applicable or accessable. It replaces CANopen by RS485 and
provides real-time transmission as CANopen communication. This communication protocol is
available for C2000 series and CT2000 series AC motor drives only and the way it functions is similar
to Master/Slave control. A master drive could control a maximum of 8 slaves and the master/slave
setting process is very simple.

Slave Drives Settings:

1. Set Pr.09-31= -1~-8, the drive is able to control 8 nodes.
2. Set Pr.00-21=1, set source of control to RS485.
3. Select for what RS485 should control: Pr.00-21=2 (Speed command) or Pr.11-33 = 1 (Torque
command) or Pr.11-40=2 (Position command).
4. Once completed, the slave setting is done. It is not required to turn on PLC functions.

Master Drives Settings:

1. Set Pr.09-31= -10 and set PLC to Enable.
Connection for Hardware:
Establish Master drive and Slave drives connections by using RS485 cable. The CT2000 series AC
motor drive is designed with 2 types of RS485 ports, as shown in the figure following:
(Refer to Chapter 06 Control Terminal for more about wiring terminals)
Removable Term inal Block
16-94
Chapter 16 PLC Function |C2000 Series
8 1 8 1
SG+ SG-
Mod bus RS-485
Pi n 1 ~ 2 , 7 ~ 8 : R e s e rve d
Pi n 3 , 6 :G N D
Pi n 4 :SG -
Pi n 5 :SG +