1.Vector, V/F control 2.1PH / 3PH AC 220V, 50 / 60Hz; 3PH ... 0~380V ACFrequency0.1~400.0HzControl MethodVector Control, V/F ControlDisplay4 LED display, indicator display. DIsplay the setting frequency, output frequency, output ... currenct, velocity, error and so on.Control Characteristics Output ...