... % - 10s; 200% - 0.5s once per 10 minutesOperational control characteristicsControl mode V/f controlSensor-less vector control without PG 1Sensor-less ... drawing machine, wind/un-winder, elevator and escalator, crane, machine tool, conveyor, compressor, drilling machine, carding machine, roving machine, compressor, crusher ... , etc. AC motor drives with large torque and vector control mode