The VFD Panel (Variable Frequency drive panel) also known as VFD Control Panel are designed to control the speed of electric motor and feed pump. They are widely used in drilling, pumping and other large machine applications. The VFD panels are widely used in extruder plants, rolling Mills, tube mills, paper mills, cable industry and CTL Lines.

Adjustment of the speed of the motor is the application, which is required in all the process industries & machinery Mfg.'s. Variable Frequency drive is used as energy saving device for some of the machines to save power during no load or it is used as final control element of the closed loop control application where the speed of the motor is changed to control one parameter. Some of the application is provided with manual speed control of the motors. These are the open loop control applications.