ITEM NAME:DM542 Stepper Motor Driver For 57 86 Series 2-Phase Digital Stepper Motor D W7G9 DM542 Stepper Motor Driver For 57 86 Series 2-Phase Digital Stepper Motor D W7G9 The driver uses discrete components structure, as long as no over voltage and wiring is right, please rest assured that two-phase 4-wire, 6-wire, 8-wire can be used. 57 series 4.5A or less (including 4.5A) two-phase four-wire, six-wire, eight-wire stepper motor also can be used Feature: 20KHz chopping frequency.Optical isolation signal input. Output current DIP switch is adjustable. Bipolar constant current chopping method High segmentation: 2,4,8,16,32,64,128,256. 5,10,25,50,125,200.TTL input signal compatible,while accepting differential signal input Specifications: Power supply:DC 24-60 (V) Current maximum:4.5A Output phase current:1.5A-4.5A Logic input current:10-20mA Operating temperature:-15 °Ã¢â‚¬â€+45 ° Size:11.7*8.5cm/4.61*3.35 inch Color: black + green Material: metal + ABS Package Contents:1 x stepper motor driver.57 series 4.5A or less (including 4.5A) two-phase four-wire, six-wire, eight-wire stepper motor also can be used. Output phase current:1.5A-4.5A. Color: black + green. Logic input current:10-20mA. 20KHz chopping frequency.Optical isolation signal input.