ST5-H Digital Stepper Motor Driver 18-65VAC/20-90VDC 2.8-7.0A

Description

ST5-H Digital Stepper Motor Driver 18-65VAC/20-90VDC 2.8-7.0A The ST5‑H is a DSP‑driven hybrid stepper driver engineered for two‑phase NEMA 23–34 motors. It accepts 18–65 VAC or 20–90 VDC and delivers 2.8–7 A peak output current, selectable in 16 levels via SW1–SW4. With 16 microstep resolutions from 200 to 25,600 steps/rev via SW5–SW8, automatic motor tuning, anti‑resonance smoothing, soft‑start, and idle‑current reduction, the ST5‑H ensures smooth, precise motion and minimal heat. Features Configurable peak current 2.8–7 A in 16 steps via SW1–SW4. Selectable microstepping 200–25,600 steps/rev via SW5–SW8. Dual supply compatibility: 18–65 VAC or 20–90 VDC. DSP‑based auto‑tuning/self‑test on power‑up. Anti‑resonance filtering for stable mid‑speed torque. Soft‑start to prevent motor “kick” at power‑on. Idle‑current reduction (~50 %) after ~1 s inactivity. Opto‑isolated step/direction and CW/CCW inputs. Comprehensive protections: over‑voltage, under‑voltage, over‑current, phase‑open. Specifications Parameter Value Model ST5‑H Driver Type DSP‑controlled two‑phase hybrid stepper driver Supported Models Two‑phase NEMA 23–34 hybrid stepper motors Input Voltage 18–65 VAC or 20–90 VDC Peak Output Current 2.8–7 A (16 levels via SW1–SW4) Microstep Resolution 200–25,600 steps/rev (16 levels via SW5–SW8) Pulse Frequency Up to 200 kHz Soft‑Start Yes Anti‑Resonance Yes Idle‑Current Reduction 50 % after ~1 s inactivity Protections Over‑voltage, under‑voltage, over‑current, phase‑open Operating Temp Range 0 °C – 50 °C Storage Temp Range –20 °C – 80 °C Applications CNC machinery and motion control. 3D printers and additive manufacturing systems. Pick-and-place robotic systems. Conveyor and material handling systems. Laser cutting and engraving machines. Automated testing and inspection equipment. Package Contents 1x ST5-H Digital Stepper Motor Driver 20-90VDC / 18-65VAC.

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