DM860H Microstep Stepper Motor Driver
The DM860H is a high-performance microstep driver designed for 2-phase and 4-phase hybrid stepper motors. It offers smooth motion, low noise, and reliable operation, making it ideal for CNC machines, 3D printers, and automation equipment.
Key Features
- Input Voltage: 18–80VAC or 24–110VDC
- Output Current: 2.4A to 7.2A (adjustable via DIP switches)
- Microstep Resolution: 400 to 25,600 steps/rev (16 selectable settings)
- Max Pulse Frequency: 300 kHz
- Control Modes: PUL/DIR or CW/CCW
- Idle Current Reduction: Automatically reduces current when idle
- Protection: Over-voltage, over-current, short-circuit, and under-voltage
- Compatible Motors: NEMA 23, NEMA 34, NEMA 42 (2-phase or 4-phase stepper motors)
- Operating Temperature: -5°C to +50°C
- Cooling Method: Natural heat sink + built-in fan air cooling
Electrical Specifications
- Input Voltage Range: 18–80VAC / 24–110VDC
- Output Current Range: 2.4–7.2A (peak current)
- Logic Signal Current: 7–16 mA
- Minimum Pulse Width: ≥2.5 μs
- Insulation Resistance: >500 MΩ
- Dielectric Strength: 500V AC/min
Physical Specifications
- Dimensions: 150 × 97 × 48 mm
- Weight: Approx. 500 g
- Mounting: Wall or cabinet mount
Pin Configuration
Control Signal Inputs:
- PUL+ / PUL- – Pulse signal
- DIR+ / DIR- – Direction signal
- ENA+ / ENA- – Enable signal
Motor Outputs:
- A+ / A- – Coil A
- B+ / B- – Coil B
Power Supply:
- AC (18–80V) or DC (24–110V)
- GND – Power Ground
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