1.Adopt 16 single chip micyoco digital automation automation control 2.The mode of connection is three input and six output, all series on line protaction will come ture. 3.The main component is from japan and the brand of cpu is philip. 4.Based on the different load we can set different current and voltage time of start torque , then we can get the best current pulse and the characteristic of the torque. 5.It can provide motor slip start progress, reduce the starting current on the impact of power grid. Reducing vibration and noise of equipment . Extended the life span of mechanical transmission, and improved working environment for artificial.