Mitsubishi FX5U “Modbus RTU” INVT Goodrive 20 Tutorial

Hello friends!
INVT Goodrive 20 inverter is a cheap inverter originating from China, but its quality is quite good for the city. Moreover, it is easy to use and supports RS485 Communication Port.

• Mitsubishi FX5U “Modbus RTU” FUJI Frenic Tutorial

Today plc247.com will guide you to use PLC Mitsubishi FX5U to control INVT GD20 via Modbus RTU (RS485)

Mitsubishi FX5U & INVT GD20 “Wiring Diagram”

Note: Use a 120Ω terminal resistor if the communication distance is far

INVT Goodrive 20 Modbus-RTU Setting

In order for the FX5U PLC to control the INVT GD20 inverter with Modbus-RTU, we need to set the communication parameters for the inverter as below:

+ P00.01 = 2 (Communication running command)

+ P00.06 = 8 (The frequency is set by MODBUS)

+ P00.09 = 0 (Select A frequency)

+ P14.00 = 1 (Slave Number.1)

+ P14.01 = 3 (9600bps)

+ P14.02 = 1 (Digital bit checkout E,8,1 RTU)

+ P14.03 = 5 (Communication answer delay)

+ P14.04 = 0.0 (Communication overtime fault time)

Registers for Control

>>> VFD Control Address = 2000 (hex)

• Set Word 2000 = 1 >>> Motor Run Forward
• Set Word 2000 = 2 >>> Motor Run Reverse
• Set Word 2000 = 5 >>> Stop

>>> Frequency Reference Address = 2001 (hex)

Registers for Monitoring

Mitsubishi FX5U Modbus RTU Configuration

We need to configure the same communication parameters as configured in the INVT GD20 Inverter

FX5U Modbus RTU Example

+ Read/Write Distribution

+ VFD Control Command

+ Read Data Response

Project Video Tutorial

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Related Software and Documents

+ Download PLC FX5U Programming Software

+ Download INVT Goodrive 20 Manual PDF (Password Extract: plc247.com)

If you have any problems in the process of connecting Mitsubishi FX5U with INVT Goodrive.20, please comment below the article, plc247.com will reply to you as soon as I read the comments.

Best Regards!