... , Inverter, frequency converter, VFD, variable frequency drive, VSD, variable speed drive, AC motor drive, energy saver, speedchanger, variator, speed controller1 ... be connected;8> Traversal function can be widely applied to all kinds of spinning devices; Power range: 0 ... metallurgy machine etc.2> Long-distance control to start/stop of the motor: blower, food, chemical machine, packing machine, ...