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RS485 Integrated Brushless Servo Drive Communicate With PLC Via RS485

Shenzhen ECON Technology Co.,Ltd | Updated: May 24, 2018

RS485 integrated brushless servo drive communicate with PLC via RS485


Step 1: Wiring between PLC and IV57- RS485-18 Integrated Brushless servo motor

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Communication port 2 (Port2) is a communication port. It can be used to download programs and connect external devices. The communication parameters (baud rate, data bits, etc.) of this communication port can be reset by software. Port2 supports both RS232 and RS485 ( The RS485 terminal is at the output, A is 485+, B is 485-), but it should be noted that they cannot be used at the same time.

The RS485 integrated brushless servo motor communication port as below

Pin Function

Details

PUL+

INEFFECTIVE DUE TO COMMUNICATION WITH RS485   Modbus

PUL-

DIR+

DIR-

ENA+

Enable signal: This   signal is used for enabling/disabling the Drive. High level (NPN control   signal, PNP and Differential control signals are on the contrary, namely Low   level for enabling.) for enabling the Drive and low level for disabling the   Drive. Usually left UNCONNECTED (ENABLED)

ENA-

ALM+

OC   single -end output, the pull on voltage is 5-24vdc,and the max output current   is 100MA

ALM-

T+

RS485 communication   port

T-

Step 2: Click "PLC Settings" to set PLC serial port 2 communication protocol parameters

Set the integrated Brushless Motor Address to 1

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Step 3: Write the PLC program and find the function code

Run the motor forward (speed 1000 RPM) send it three instructions

1. RS-485 function effective instruction

2. Set the motor speed 1000 RPM

3 motor forward command

The PLC program is written as follows:

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Download the program to the PLC and set M0 to ON and the  RS485 integrated brushless servo drive to run at 1000 RPM!

 

ECON TECH is a leading supplier of motion control technology solutions in China, focusing on the development, production and sales of ,RS485/ethercat/canopen stepper servo drive(closed loop stepper drive), stepper drive,brushless servo drive, integrated stepper drive/integrated closed loop motor,integrated brushless servo drive. 



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