... & 2)< 5ms (close-loop vector control with PG)Torque control accuracy +/-7.5% (sensor-less vector control without ... motors, weak magnetic control, high-precision torque restraint, V/f separated control, torque control without PG, torque control with PG, two ... , wire drawing machine, wind/un-winder, elevator and escalator, crane, machine tool, conveyor, compressor, drilling machine, carding machine, ...