Open the .DLD file in WinProLadder. Connect your PLC and VFD as described in the wiring diagram. Download the program to the PLC to control the motor speed.

Abstract: The variable-frequency speed control system based on PLC has many advantages of PLC and VFD, which is one of the most ideal and promising speed control methods for three-phase asynchronous ...

Abstract: Most commercially used large scale industries, such as spinning, cement, sugar, and food, are now introducing the next step of textile machines control for ...