Hello everyone!
Mitsubishi FX3U PLC is one of the most commonly used PLCs in the world and today I will show you how to use it to control PowerFlex525 (Allen-Bradley) Inverters
To be able to communicate with Modbus-RTU, FX3U needs to use the FX3U-485ADP-MB Module.
FX3U & PowerFlex525 “Wiring Diagram”
PowerFlex 520 Series Communication Settings
To configure the Modbus-RTU parameters we need to set the parameters as follows
Register for Control
>>> Control Run Address = 2000 (Hexa)
+ Set Word 2000 = 18 >>> Motor Forward Start
= 34 >>> Motor Reverse Start
= 1 >>> Stop
= 8 >>> VFD Fault Reset
>>> Setting Frequency Address = 2001 (Hexa)
Register for Monitoring
Mitsubishi FX3U Programming
+ FX3U Channel2 Modbus RTU Settings
+ Distribution Write/Read Automatic
+ Frequency Setting & Motor Control Run
+ Data Monitoring Read
Video Tutorial
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Documentation and supporting software:
+ GX-Works2 for PLC Mitsubishi Programming
+ PowerFlex 525 Manual PDF Download (Password Extract: plc247.com)
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Best Regards!
