HLP-B series is based on Danfoss technology platform Holip new generation of high performance, multi-function vector driver. It has four control modes of speed open loop, speed closed loop, process closed loop and torque open loop, which can be widely used in speed control of induction motor and synchronous motor. It has swing, coupling and winding application functions. To meet the needs of different customers, HLP-B series provides a wealth of expansion cards.