VARIABLE SPEED DRIVE 1) multi-function drive 2) high torque ac drive 3) 16 segment speed drive 4) CE, SGS, ISO9001 VARIABLE SPEED DRIVE.1. SY-8000G 380V three phase ac drive, frequency ... , RUN/STOP status, special status, charging status.Protection functionProtection functionOver voltage, under voltage, current limitation, over current, overload of inverter, overload of ...