

Overview:
The DM556 is a high-performance digital stepper motor driver powered by DSP technology, designed for 2-phase hybrid stepper motors. Supporting frame sizes from 42mm to 86mm and peak current up to 5.6A, it is optimized for quiet, smooth operation with ultra-low vibration. It integrates motor-specific control algorithms and advanced fault protection for reliable performance.
Key Features:
Wide Voltage Range: 20–50VDC input for flexible power setups
Adjustable Output Current: 1.4A to 5.6A with 8-level DIP switch control
Microstepping Options: Up to 128 subdivisions (400 to 25600 pulses/rev)
DSP Control Algorithm: Delivers smooth, quiet, and precise motion control
Signal Compatibility: 5–24VDC for PUL, DIR, and ENA inputs
Built-in Protections: Overvoltage, overcurrent, and thermal fault detection
Cooling: Natural or fan-assisted air cooling supported
Durable Design: Suitable for industrial and commercial equipment
Applications:
Ideal for CNC routers, 3D printers, laser engraving machines, textile automation, electronics manufacturing, measurement and medical instruments—especially in systems requiring low noise, high smoothness, and cost-effectiveness.
Wiring Interface:
PUL+ / PUL-: Pulse signal input (>1.2μs)
DIR+ / DIR-: Direction control signal
ENA+ / ENA-: Enable or disable output
+V / GND: DC power input (20–50V)
A+ / A-, B+ / B-: Stepper motor phase outputs
DIP Switch Settings:
Current (SW1–SW3): 1.4A to 5.6A adjustable
Standby Mode (SW4): Full or half current
Microstepping (SW5–SW8): 15 levels, including 5, 10, 25, 50, 125, and 25600 steps/rev
Environmental & Physical Specs:
Operating Temperature: 0°C – 50°C
Humidity: 40–90% RH
Weight: 0.25kg
Cooling: Natural convection or external fan
Avoid dust, oil, corrosive gas, moisture, and strong vibration
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