... Rising edge effective,rising edge duration >10uS)DIR + DIR-: Stepping motor direction input, voltage level touched off,high towards, low reverseENA ... reliably for a long time.Half current automatically: if control machine not send out signal in half second, driver enter ... the wiring of electrical machinery is a mistake CW5045 2-phase Stepper motor driver, Stepping motor driver,1.5A~4.5A, 24Vdc~48Vdc