CE, ISO9000 certification 3 phases, 380V AC 5.5~7.5KW inverter VVVF control, constant,vairable ... torque mode VD4 series3 phases, 380V AC 5.5~7.5KW invertersVD4-45P5Suitable motor: 5.5KW, rated ... multi-devices linkage functionRunning functionCommand modeOperated by three mode: digital panel, control terminal, serial portFrequency setting modeSetting modes can be selected ...