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    VFD (Variable Frequency Drives} control the speed of a motor, but they do so by changing the voltage and frequency and can thus only be used with AC motors. VFDs can vary speed control at start-up, during the run, and at motor stop. VFDs are mainly used in three different kinds of systems, which are AC motor controllers, driver/operator interface, and speed control.


    • Conveyer systems
    • Pump Speeds
    • Blower Speeds
    • Pharmaceutical Industry
    • Gas Industry



    Q: What is the difference in VFD (variable frequency drive) and VSD

    (variable Speed drive)?

    ;A: Variable speed drive refers to AC and DC drives whereas the variable frequency drive only applies to AC motors.

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