Hello everyone, in the previous post plc247.com showed you how to use Siemens S7-1200 PLC connected to FUJI-Frenic Series inverters via Modbus-RTU RS485 communication.
Today I will continue to guide you to use another extremely popular PLC, Mitsubishi FX3U (combined with FX3U-485ADP-MB module) to control FUJI Frenic VFD.
Wiring Diagram FX3U & Fuji Frenic VFD
Fuji Frenic Mini Configurator
To be able to control the Fuji Frenic inverter in Modbus-RTU RS485 mode, we need to configure the following parameters:
- H30 = 3 (Run & Frequency Control via RS 485)
- Y01 = 1 (Slave No.)
- Y02 = 0
- Y03 = 2.0
- Y04 = 2 (9600bps)
- Y05 = 0 (8bit)
- Y06 = 1 (Even)
- Y07 = 1 (1bit)
- Y10 = 0 (Modbus-RTU)
- Y99 = 0 (Folow H30 Parameter)
Register Address
Below is the starting code table of each group of registers corresponding to their Hexa code
Register Control
+ Frequence Setting Address = S (07Hex) + 05 = 705 (Hex)
+ Motor Control Address = S (07Hex) + 06 = 706 (Hex)
- Set 706(Hex) = 1 >>> Run Forward
- Set 706(Hex)= 2 >>> Run Reverse
- Set 706(Hex)= 0 >>> Stop Motor
Register Output Data
>>> Output Frequency Address = M (08Hex) + 09 = 809 (Hex)
>>> Output Voltage Address = M (08Hex) + 012 = 80C (Hex)
Mitsubishi FX3U Programming
+ FX3U CH2 Communication Configuration
+ Distribution Read/Write
+ Setting Frequency Command
+ Motor Control Run Command
+ Read Data Response
Installation Instruction Video
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Documentation and supporting software
- GX-Works2 for FX3U Programming
- Download Fuji Frenic Basic Manual PDF
- FUJI Frenic RS485 Manual PDF (Password Extract: plc247.com)
If you need any assistance in the process of connecting Mitsubishi FX3U and FUJI Frenic, please comment below the article.
Best Regards!
I’m Japanese. I’m sorry if my English is poor. I have two questions.
1) How do you operate the program when it’s running in Gxworks2? Is it a remote operation?
2) If it is a remote operation, the program doesn’t increment properly even when it’s actually started. What is the reason?
I would like to answer as follows:
1. GX-Works2 software I connect directly to PLC and you can use HMI instead of this