ATA VFDs deliver full-range motor speed control, reduce energy consumption, and protect equipment in the most demanding industrial environments. CE and EAC certified. Low voltage and medium voltage ranges available.
A variable frequency drive (VFD) — also known as an inverter drive, AC drive, or frequency converter — is an electronic device that controls the speed and torque of an AC motor by varying the frequency and voltage of its power supply. Unlike a soft starter, which only manages the initial motor start-up before bypassing itself, a VFD remains fully active throughout the entire operation.
This continuous, dynamic control allows precise, on-demand speed adjustment at any point in the process, making VFDs ideal for variable-demand applications such as pumps, fans, compressors, conveyors, and industrial machinery where output requirements change over time. VFDs eliminate harmful inrush currents at start-up, reduce mechanical stress on driven equipment, and enable consistent process control that improves product quality and reduces waste. At ATA, we design and manufacture both VFDs and soft starters, and our engineers will work with you to select the right solution for your specific application and performance needs.
ATA provides soft starter solutions for both low voltage and medium voltage applications
Every VFD is tested under actual motor load conditions on our in-house test platforms to verify speed regulation accuracy, torque control performance, and protection function response before shipment.
ATA VFDs use highly reliable IGBT modules selected for industrial-grade thermal stability and switching performance, with burn-in testing completed before PCB assembly.
Our engineers will recommend the optimal low or medium voltage VFD to match your motor, load profile, and operational requirements.
A variable frequency drive (VFD) is an electronic power control device that regulates the speed and torque of an AC motor by adjusting the frequency and voltage of its output. Unlike soft starters, VFDs remain active throughout the entire motor operation, enabling precise speed control for variable-load applications.
A VFD continuously controls both frequency and voltage to adjust motor speed and torque during the entire operating cycle, supporting variable-speed operation. A soft starter only controls voltage during start-up and shut-down to limit inrush current and mechanical stress, then bypasses itself once the motor reaches full speed. VFDs are ideal for variable-speed applications, while soft starters are optimized for fixed-speed systems.
Energy savings depend on your application, but for variable-torque loads like fans and pumps, VFDs can significantly reduce power consumption. Savings vary based on operating conditions and load profiles, and our engineers can provide a customized estimate based on your specific motor and application requirements.
ATA VFDs work with most standard three-phase AC motors, including induction or synchronous motors used in applications such as fans, pumps, compressors, conveyors, crushers, and mills. We also support specialized motor types and offer tailored solutions for both low voltage and medium voltage applications.
ATA VFDs are designed and tested to meet IEC 61800 international standards for adjustable-speed power drive systems. Our low voltage VFDs carry CE certification, supported by accredited third-party EMC and safety testing. Our manufacturing processes are also backed by ISO 9001 certification, ensuring consistent quality across all product lines.
Whether you are specifying a new project, requesting a technical proposal, or exploring distributor opportunities, our engineering team responds to all international enquiries within 24 hours.
