DM556 Stepper Motor Driver: Input Voltage: DC 20-50V; Output Current: 1.0-5.6A, 8 Level Adjustable, 0.5A Resolution.<br> DM556 is a Generation of High Performance Digital Stepping Driver Based On 32-Bit DSP Technology.<br> Two Phase Hybrid Stepper Motor of Various Types with Peak Current Below 4.2A and Outer Diameter 42-66MM is Provided.<br> Suitable for Nema 17, Nema 23 and Nema34 Stepper Motor,2-Phase Hybrid Stepper Motors (Outer Diameter: 42,57,66mm).<br> Used for All Kinds of Small and Medium-Sized Automation Equipment and Inst ents: Engraving Machine, Marking Machine, Cutting Machine, Laser Typesetting, Plotter, CNC Machine Tools, Automatic Assembly Equipment, etc.<br> DSP Digital Stepper Motor DriverStandard Single Pulse InterfaceProvides Energy-Saving Semi-Automatic Current Locking Function, Semi-Enclosed Housing Can Be Adapted to More Stringent EnvironmentHigh Speed Optocoupler Isolation Signal, Strong Resistance to High-Frequency InterferenceBuilt-in Overheat, Over-Current,Over-voltage and Under-voltage Protection, Can Drive 4,6, 8 Wire Two Phase Stepper Motor, Control Signal 5-24V Universal<br> Drive Method:Bipolar Constant Current PWM Drive Pulse<br> Response Frequency:200kHz(Max)<br> Insulation Resistance:greater than equal 500Mohm<br> Insulation Strength:500V/min<br> Colour:As Shown<br> Material:Plastic<br> Size:118x75.5x34mm/4.6x3.0x1.3in<br> Package Contents:<br> 1 * Driver<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.