Mitsubishi E700 Series inverter is a cheap but good quality inverter, so it is commonly used in the market. Today plc247.com will guide you to use the computer to control it via Modbus-RTU RS485.
I use Modbus Poll software (3MB, Download link below the article) and USB to RS485 convert Cable.
Mitsubishi FR E700 Modbus-RTU Wiring Diagram
Mitsubishi FR E700 Modbus Configuration
In order for the inverter to communicate with Modbus-RTU, you need to configure the following parameters:
- 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)
Register for Control
Note: For Mitsubishi E700 Series VFD
“Control Address = Register Address – 40001”
>>> Motor Control Address = 40009 – 40001 = 8
- Set Word 8 = 0000 0000 0000 0010 = 2 for Forward Run
- Set Word 8 = 0000 0000 0000 0100 = 4 for Reverse Run
- Set Word 8 = 0000 0000 0000 0000 = 0 for Stop
>>> Frequency Setting Address = 40014 – 40001 = 13 (dec) = D (hex)
Register for Monitoring
We will read 3 consecutive response data bars starting from register 40201
Output Frequency = 40201 – 40001 = 200 (dec) = C8 (hex)
Modbus Poll Software Configuration
+ Motor Control Word
+ Set Frequency
+ Read Data Response
Detailed Instruction Video
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Software & Documention:
+ Download “Modbus Poll” Software
+ Download FR E700 VFD Manual PDF
If you have any questions about the project implementation, please comment below the article.
Best Regards!
