... 1/2504. Protect form : Overheated protect, lock automatic half current ,error connect protect5. The maximum pulse ... guard against exceeding 70V, so as not to damage the module2.GND:DC power cathode3.A ... >10uS)6.CW +,CW-:Stepping motor direction input, voltage level touched off,high towards, low reverse 7 ... free CW8060 micro stepping 2-phase step motor driver, current 2A-6A, input voltage 36Vdc~80Vdc