DM556 Digital Stepper Motor Driver 20-50VDC 1.4-5.6A

Description

The DM556 is a digital, DSP‑driven two‑phase stepper driver tailored for NEMA 17–23 motors. It operates solely on 20–50 VDC (no AC support) and delivers 1.4–5.6 A peak output current (≈4.0 A RMS) via DIP‑switch configuration. Key functions include motor auto‑identification and auto‑tuning on power‑up, anti‑resonance smoothing to eliminate mid‑speed instability, soft‑start to prevent motor “kick,” and idle‑current reduction to cut heat during standstill.