... 2.High microstep,high torque 3.broad voltae range 4.wide output current range:0.3-8V Characteristics:1.DC power ... input type:24V~50VDC2.Output current:1.3A-4.5A3.Mircostepping:1(1.8º),1/2,1 ... /4,1/8,1/16,1/32,1/64, ... , but the electrical machinery runs abnormally, shake , and output is small.Please check whether the wiring of electrical machinery ...