BENTLY 125768-01 DCS/PLC CONTROLLER IN STOCK

Of course, variable frequency drives (VFDs) are another option for soft-start functionality. They provide the same controlled starting and stopping functions of a soft starter, albeit in a different way — by varying motor-input voltage frequency rather than voltage magnitude. Other VFDs advantages over soft starters include the ability to control motor speed over the entire operating range. VFDs can also deliver power for holding torque (full torque at zero speed) which is key in motor-driven applications such as cranes and elevators.