Hello everyone! In this Article post, I would like to guide you to use MicroLogix 1400 PLC to control PowerFlex4M AC Drive.
In order for the VFD to be controlled via “Modbus RTU” communication, we need to configure the following minimum parameters:
Note: MicroLogix 1400 Address = “VFD Address (Dec) + 1“>>> Motor Control Address = 8192 (Dec) + 1 = 8193+ Set Word 8193 = 8 : Reset VFD= 18 : Forward Run= 34 : Reverse Run= 1 : Stop>>> Motor Frequency Reference Address = 8193 (Dec) + 1 = 8194