Hello everyone, continuing the series using Siemens S7-200 PLC to control different types of inverters through Modbus-RTU communication protocol, today thelivingchristmascompany.com continues to guide you to control Fuji Frenic inverters.
The inverter model used is Fuji Frenic Mini (similar ECO, Multi models) I will guide you to control it in the simplest and easiest way.
Siemens S7-200 & Fuji Frenic “Wiring Diagram”
RS485 communication connection diagram between PLC Siemens S7-200 and Fuji Frenic Mini inverter.
Fuji Frenic Modbus Parameters Setting
Below are the Modbus communication parameters that need to be installed for the Fuji Frenic inverter:
- H30: 3 (VFD Control via RS485 Port)
- Y01: 1 (Slave Address)
- Y02: 0
- Y03: 2
- Y04: 2 (9600bps)
- Y05: 0 (Data: 8bit)
- Y06: 1 (Parity Check: Even)
- Y07: 1 (Stop Bit: 1)
- Y10: 0 (Modbus-RTU Selection)
- Y99: 0
Fuji Frenic Group Address Area
Fuji Frenic Registers Address
Note: Siemens S7-200 Holding Registers Address =
“VFD Address (Dec) + 40001”
>>> Frequency Reference Address = S(07H) + 05 = 705 (hexa)
= 1797 (dec) + 40001 = 41798 (dec)
>>> Operation Command Address = S(07H) + 06 = 706 (hexa)
= 1798 (dec) + 40001 = 41799 (dec)
- Set Word “41799” = 1 >>> Forward Run
= 2 >>> Reverse Run
= 0 >>> Stop Run
>>> Output Frequency Address = M(08H) + 09 = 809 (hexa)
= 2057 (dec) + 40001 = 42058 (dec)
>>> Output Current Address = M(08H) + 11 = 80B (hexa)
= 2059 (dec) + 40001 = 42060 (dec)
>>> Output Voltage Address = M(08H) + 12 = 80C (hexa)
= 2060 (dec) + 40001 = 42061 (dec)
Siemens S7-200 Modbus Example
+ Read/Write Distribution
+ Modbus Configuration
+ Frequency Write Command
+ VFD Start/Stop Command
+ Output Monitoring Read
Video Tutorial
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References
>>> Download Siemens STEP7 MicroWIN V4.0 Software
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