ST8 Digital Stepper Motor Driver 20-110VAC/20-160VDC 2.2-8.2A

Description

ST8 Digital Stepper Motor Driver 20-110VAC/20-160VDC 2.2-8.2A The ST8 is a high‑performance drive utilizing DSP-based PI current control, designed for two-phase hybrid stepper motors. It accepts 20–110 VAC or 20–160 VDC, delivers 2.2–8.2 A peak output current, and supports step & direction or CW/CCW pulse signals, switch-selectable. With 16-position microstepping (up to 1/100 internal resolution), robust protections against over-voltage, over-current, phase faults, and built-in idle-current halving, the ST8 delivers smooth, low-noise, and low-heat operation across a wide speed range. Features Wide input voltage range: 20–160VDC or 20–110VAC. Peak output current up to 8.2A. Supports single-ended and differential pulse inputs. Microstepping resolution up to 51,200 steps per revolution. PI control algorithm for smooth and quiet operation. Built-in protections: over-voltage, under-voltage, over-current, and overheating. Compatible with NEMA 34 stepper motors. Compact design for easy system integration. Specifications Parameter Value Model ST8 Driver Type DSP-controlled two-phase hybrid stepper driver Supported Models Two-phase NEMA 34 hybrid stepper motors Input Voltage 20–110 VAC or 20–160 VDC Peak Output Current 2.2–8.2 A Microstep Resolution 16‑position (up to 1/100 internal emulation) Control Modes PUL/DIR or CW/CCW (switch-selectable) Idle‑Current Reduction 50% after motor stops Protections Over‑voltage, under‑voltage, over‑current, phase‑open fault PINOUT Applications CNC milling machines. 3D printers. Robotics and automation systems. Laser engraving machines. Medical equipment. Textile machinery. Packaging machinery. Stage lighting systems. Package Contents 1x ST8 Digital Stepper Motor Driver.

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