... 0.75~1000kW (>/=355kW is v/f control) WIN-VC frequency converter with Closed-loop vector control Power rangeVoltage : 220V,380V,660V ... is v/f control)Application areaSuitable for high-end application area with high precision, fast response, high torque, big inertia, potential load ... , null-servo control, self-learning, parameter copy and other high-end function.4 modes of control available: V/F control ...