... VFD, variable frequency drive, VSD, variable speed drive, AC motor drive, energy saver, speedchanger, variator, speed controller1 Features ... keypad;7> Hi-performance isolating OC output, AC or DC load of 220V/0.5A can ... machine, china machine, baccy machine, metallurgy machine etc.2> Long-distance control to start/stop of the motor: blower, food, chemical machine, packing machine, transportation machine ...