Hi everybody. In previous posts thelivingchristmascompany.com used some PLCs, HMIs to control FUJI-Frenic Series inverters via Modbus-RTU. Today I will continue to guide you to use your PC to control it.
I use USB to RS485 Cable and “Modbus Poll” software to make this project. You can download the software at the end of the article.
Fuji Frenic & PC Wiring Diagram
You connect according to the diagram below, pay attention if the communication distance is long, you need to use a terminal resistor 120Ω
Fuji Frenic Communication Configuration
Below are the communication parameters to be configured:
- H30 = 3 ( Motor Control via RS485)
- Y01 = 1 ( Address No.1)
- Y02 = 0
- Y03 = 2
- Y04 = 2 (baud rate 9600bps)
- Y05 = 0 (8bit)
- Y06 = 1 (Even)
- Y07 = 1 (stop bit = 1)
- Y10 = 0 (Modbus RTU Selection)
- Y99 = 0
Modbus Address Area
Below is the table of Hexa addresses corresponding to the Parameters Group
Register Control
>>> Frequency Reference = S (07H) + 05 = 705 (Hex)
>>> Operation Command = S (07H) + 06 = 706 (Hex)
+ Set 706 = 1 >>> Run Forward
+ Set 706 = 2 >>> Run Reverse
+ Set 706 = 0 >>> Stop Run
Register Monitoring
>>> Output Frequency = M (08H) + 09 = 809 (Hex)
>>> Input Power = 80A (Hex)
>>> Output Current = 80B (Hex)
>>> Output Voltage = 80C (Hex)
Modbus Poll Programming
+ Motor Control Word
+ Frequency Setting Command
+ Read Data Monitoring
Detailed Instruction Video
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Software & Documents Download:
- (Password Extract: thelivingchristmascompany.com)
If you have any difficulties in connecting Fuji Frenic to PC or have any questions to answer, please comment below the article.
Best Regards!
