The DM542 digital stepper motor driver adopts the latest 32-bit DSP technology, suitable for driving 57 and 86 series motors. It has excellent medium-low speed performance and can meet the application needs of most medium and small equipment. Features: 1. Integrated with parameter self-tuning function, which can automatically generate optimal operating parameters for different motors. 2. Can drive 4-wire / 8-wire two-phase stepper motor. 3. Stable running and low noise under medium-low speed. 4. Precise current control greatly reduces the motor heat. 5. Optical isolation signal input, strong anti-interference ability. 6. With over-voltage, over-current protection. Specification: Model: DM542 Input voltage: 18-48VDC, 24V(Typical) Output current: 1.0-4.2A Pulse response frequency: 200kHz(Maximum) Insulation resistance: ≥ 500M Ω Subdivision range: 400~25600ppr Weight: Approx. 268g / 9.4oz Package list: 1 x Steeper Motor Driver Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. .