... 1 & 2)< 5ms (close-loop vector control with PG)Torque control accuracy +/-7.5% (sensor-less vector control without PG ... , weak magnetic control, high-precision torque restraint, V/f separated control, torque control without PG, torque control with PG, two encoder signal ... carding machine, roving machine, compressor, crusher, pump, fan, etc. AC motor drives with large torque and vector control mode