... +,PUL -:Stepping pulse input+5V (Rising edge effective , rising edge duration >10μS)6,DIR +,DIR-:Stepping motor direction input, voltage ... of the electric3, The fault phase is protected : When the double-phase electrical machinery is connected with driver , users are apt to ... Full current;1=half current4,Pulse choice:In the driver has a jump5,installation dimension Stepping motor driver,1.3A-4.5A, ...