Abstract—A hybrid method utilizing ladder logic diagram modeled Programmable Logic Controller and Pulse Width Modulation based variable frequency drive has been proposed for controlling the prime mover; induction motor. The paper epitomizes the basic requirements of the proposed panel based on ergonomics. The proposed design covers the implementation parameters aiming to ameliorate the human machine interaction. This computer controlled systems has the ability to continuously evolve its control strategy conditions for flexible operations. The tasks complied through the control panel include customized starting, direction controlling, inching and speed controlling.

Index Terms—Ladder logic diagram, programmable logic controller, pulse width modulation, voltage frequency speed drive.

S. Takiyar is with Department of Electrical & Electronics Engineering, Sri Ram Swaroop College of Engineering & Management affiliated to Uttar Pradesh Technical University, Lucknow, India (e-mail: takiyar.s@gmail.com).
B. K. Chauhan is now with ABES Institute of Technology, Ghaziabad, India (e-mail: bhaveshsudan2000@yahoo.com).