... & 2)< 5ms (close-loop vector control with PG)Torque control accuracy +/-7.5% (sensor-less vector control ... magnetic control, high-precision torque restraint, V/f separated control, torque control without PG, torque control with PG, two ... , machine tool, conveyor, compressor, drilling machine, carding machine, roving machine, compressor, crusher, pump, fan, etc. AC motor drives with large torque and ...