... :2~6A3. Mircostepping:1(1.8º),1/2,1/4,1/8,1/16,1/32,1/64 ... -:Stepping motor direction input, voltage level touched off,high towards, low reverse7.REST+,REST-: motor free NOTE ... thus would damage the driver seriously. The protecting circuit is within this driver, when users connect by mistake ... wiring of electrical machinery is a mistake . CW6060AC high quality stepper motor driver,2A-6A,Power input type: ...