... Stepping motor direction input, voltage level touched off,high towards, low reverse7.REST+,REST-: motor free NOTE ... 1.When ambient temperature is high or working current over 3A, fix the module on big metal shell , ... flows fan dispels the heat, to make the module run reliably for a long time. 2.Half ... of electrical machinery is a mistake . CW6060AC high quality stepper motor driver,2A-6A,Power input type: ...