... 2~6A3. Mircostepping:1(1.8º),1/2,1/4,1/8,1/16,1/32,1/64,1 ... :DC power cathode3.A+,A-:Stepping motor one winding 4.B+,B-:Stepping motor other winding5.CP +,CP -: ... control machine not send out signal in half second, driver enter half current state of automatically for electricity saving, ... : When the double-phase electrical machinery is connected with driver , users are apt to connect the phase by mistake, ...