Continuing with the series of articles on how to control LS iG5A VFD via Modbus-RTU (RS485) communication standard, today plc247.com would like to continue to guide you to use PLC Keyence to control
We can use any Keyence PLC of KV-Series in combination with Module KV-L21/21V to connect.
Keyence KV-L21V & LS iG5A VFD Connection Diagram
LS iG5A Configurator
In addition to the basic parameters for the motor installation, we need to set the communication parameters according to the following table
+ Drv = 3
+ Frq = 7
+ I59 = 0
+ I60 = 1
+ I61 = 3
+ I62 = 0
+ I65 = 2
Modbus Regigter Address
Note: PLC Register Address = “Address – 1”
PLC Keyence Modbus RTU Configurator
We need to set the same parameter as the inverter
KV5500 PLC Programming
+ Reset registers when PLC starts running & Control Read/Write
+ Frequency Write Command
+ Control Run Command
+ Read Data Command
+ Read Data Reponse
Video Installing and Running the Program
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Required documents and software:
+ KV Studio for PLC Keyence Programming
+ LS iG5A VFD Manual PDF Download (Password Extract: plc247.com)
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Best Regards!
