This paper’s emphasis is on the development of a scalable prototype exterior automatic vehicle washing system. The system is built around a Logo Zelio (SR3B261BD) PLC for inputs and output components control. VFD moderates the conveyor belt motor speed as required for it smooth operation. Water recirculation system is incorporated for water and detergent economy. The status lamp on the control panel informs the user of the instantaneous stages of operation and control of the entire system. | A prototype plc built automatic vehicle washing system using VFD
