... ,vairable torque mode VD4 series single phase, 220V AC 1.5~2.2KW inverter VD4-21P5Suitable motor: 1.5KW, rated output ... current: 7.5A, External Dimension: 83*210*152mmVD4-22P2Suitable motor: 2.2KW, rated output current: 10A, External Dimension: ... master-slave multi-devices linkage function Running functionCommand modeOperated by three mode: digital panel, control terminal, serial portFrequency setting ...