Mitsubishi FX5U “Modbus RTU” FR E700 VFD Tutorial

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Mitsubishi is a manufacturer of extremely famous automation equipment in the industry and has products that are widely used and popular in the world.

• Mitsubishi FX5U “Modbus RTU” Yaskawa V1000 Tutorial

Today plc247.com will guide you to use the Mitsubishi FX5U PLC to control the FR-E700 Series inverter via Modbus RTU (both have built-in 1 RS485 port).

Mitsubishi FX5U & FR-E700 “Connection Diagram”

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

Mitsubishi FR E700 Modbus-RTU Configuration

In order for the FR E700 inverter to be controlled by Modbus RTU, we need to set the parameters as below

+ Pr117: 1 (Slave Address)

+ Pr118: 3 (Baudrate 9600)

+ Pr119: 0 (8bit, stop bit = 1)

+ Pr120: 2 (Even)

+ Pr121: 9999

+ Pr122: 9999

+ Pr123: 9999

+ Pr124: 1

+ Pr340: 1

+ Pr549: 1

+ Pr79: 2 (Last Setting)

Mitsubishi FR-E700 Registers for Control

Note: VFD Address = Starting register address (decimal) – 40001

>>> Control Address = 40009 – 40001 = 8 (dec) = 8 (hex)

• Set Word 8(hex) = 0000 0000 0000 0010 = 2 >>> Forward Run
• Set Word 8(hex) = 0000 0000 0000 0100 = 4 >>> Reverse Run
• Set Word 8(hex) = 0000 0000 0000 0000 = 0 >>> Stop

>>> Set Frequency Address = 40014 – 40001 = 13 (dec) = D (hex)

Mitsubishi FR-E700 Registers for Monitoring

• Output Frequency Address = 40201 – 40001 = 200 (dec) = C8 (hex)
• Output Current Address = C9 (hex)
• Output Voltage Address =CA (hex)

Mitsubishi FX5U Modbus RTU Setting

We need to set communication parameters of Mitsubishi FX5U same as FR-E700 VFD

FX5U Programming Example

+ Reset & Automatic Read / Write

+ VFD Control Command

+ VFD Data Monitoring

Project Video Tutorial

Related Software and Documents

+ Download FX5U Programming Software

+ Mitsubishi FR E700 Manual PDF Download (Password Extract: plc247.com)

If in the process of connecting Mitsubishi FX5U to the FR E700 inverter, you have any problems, please comment below the article, plc247.com will answer you as soon as I read the comment.

Best Regards!