ST2-Plus Digital Stepper Motor Driver 12-50VDC
The ST2‑Plus from is a high-precision digital driver for NEMA 11–17 hybrid stepper motors. It operates on 12–50 VDC and offers 0.1–3.0 A peak output current via SW1–SW4 DIP switches. Equipped with auto motor identification and tuning, anti-resonance smoothing, soft-start, idle-current reduction, and 16-position microstep selection up to 25,600 steps/rev, the ST2‑Plus ensures smooth, stable motion with reduced vibration and heat.
Features
- Wide input voltage range: 12–50VDC.
- Peak output current up to 3.0A.
- Advanced microstepping up to 1/256 step resolution (51,200 pulses per revolution).
- Optically isolated STEP and DIR inputs supporting up to 200kHz pulse frequency.
- Idle current reduction to minimize power consumption.
- Comprehensive protection features: over-voltage, under-voltage, over-temperature, and short-circuit.
- Compact design for easy system integration.
Specifications
| Parameter | Value |
|---|---|
| Model | ST2‑Plus (SR2‑Plus DAC) |
| Driver Type | DSP‑controlled two‑phase hybrid stepper driver |
| Supported Models | NEMA 8–17 hybrid stepper motors |
| Input Voltage | 12–50 VDC |
| Peak Output Current | 0.1–3.0 A (SW1–SW4 selectable) |
| Microstep Resolution | 200–25,600 steps/rev (SW5–SW8) |
| Pulse Frequency | Up to 2 MHz input filtering selectable |
| Control Modes | Step/Direction or CW/CCW |
| Soft‑Start | Yes |
| Anti‑Resonance | Yes |
| Idle‑Current Reduction | 50% or 90% after ~1 s inactivity (SW4) |
| Protections | Over-voltage, under-voltage, over-current, motor short/open, over-temperature |
| Operating Temp Range | 0 °C–40 °C |
| Storage Temp Range | –10 °C–70 °C |
Applications
- 3D printers.
- CNC machinery.
- Robotics.
- Automated assembly lines.
- Packaging equipment.
- Textile machinery.
Package Contents
- 1x ST2-Plus Digital Stepper Motor Driver.
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