... edge effective,rising edge duration >10uS)DIR + DIR-: Stepping motor direction input, voltage level touched off,high towards, low reverseENA ... + ENA-: motor free Note:When ambient temperature is high or working current ... wiring of electrical machinery is a mistake CW5045 2-phase Stepper motor driver, Stepping motor driver,1.5A~4.5A, 24Vdc~48Vdc