... driver microstepping driver, current: 2~6A Power input type:24V~55V AC microstepping driver, current: 2- ... Stepping motor direction input, voltage level touched off,high towards, low reverse7.REST+,REST-: motor free ... the module on big metal shell , or use axle flows fan dispels the heat, to make the ... machinery is a mistake . CW6060AC high quality stepper motor driver,2A-6A,Power input type:24V~55V AC