For general-purpose 0.25 to 3 hp motor applications, Variflex2 RVEF Series uses microprocessor technology to controls all drive functions. These ac motor drives, setup via front touchpad or PC software tool, come in 2 frame sizes that cover main supply voltages of 110/230 Vac, single-phase or 230/480 Vac, 3-phase. Along with sensorless vector or V/F control, drive includes various control inputs, motor protection, and multifunction digital output.