... mills, conveyors and lifts 1. Variable Frequency Drive characteristicsVFD is a masterpiece of outstanding performance and high reliability, which is widely used ... VFD uses new type of IGBT with advanced microcomputer control.High-High voltage resource VFD, direct 3, 3.3, 4.16 ... accurate protection. The basic protection includes over voltage, over current, low voltage, phase loss, over load, over heat, ...