The VLT 3000 Variable Speed Drives series is an adjustable-frequency drive platform designed for variable-speed control of three-phase asynchronous motors across several industrial supply-voltage classes.
The series includes models for 3-phase 200 to 230 V, 380 to 415 V, and 440 to 500 V systems, with programmable output frequency ranges up to 120 Hz or 500 Hz depending on application requirements. Its control design uses Danfoss Voltage Vector Control technology and also includes features such as automatic motor adaptation, programmable control inputs and outputs, RS485 communication, and selectable operating characteristics for constant-torque and variable-torque loads. Standard built-in elements such as motor coils, DC link coils, and galvanic isolation are used to improve installation flexibility, reduce harmonic effects on the mains, and support longer motor cable runs without additional external components. Across the series, the drives also incorporate integrated thermal motor protection, short-circuit and earth-fault protection, and multiple enclosure formats for use in industrial installations.
