... motor driver microstepping driver, current: 2~6A Power input type:24V~55V AC microstepping driver, current: 2 ... Stepping motor other winding5.CP +,CP -:Stepping pulse input+5V (Rising edge effective , rising edge duration ... 10μS)6.CW +,CW-:Stepping motor direction input, voltage level touched off,high towards, low ... over 3A, fix the module on big metal shell , or use axle flows fan dispels the heat ...