User manual for the Shuangjie SJ-2H80MS2/5 driver that controls two‑phase mixed stepper motors with adjustable current and micro‑stepping.
The SJ-2H80MS2/5 driver is designed for two‑phase mixed stepper motors, offering high‑frequency chopper operation, constant‑current drive, and strong anti‑interference performance. It supports motors such as the 110BYG and 130BYG series with a maximum per‑phase current of 8 A and provides eight selectable current levels.
The manual details wiring diagrams, power supply requirements, signal input connections (CP, DIR, FREE), micro‑stepping settings, and troubleshooting tips. It also includes specifications, indicator lamp functions, and a FAQ section to help users configure and maintain the driver in applications like stage lighting, automation, POS machines, and industrial printers. This manual is written in Chinese.
| Supply voltage AC1 | 17 V |
|---|---|
| Supply voltage AC2 | 60‑110 V |
| Maximum per‑phase current | 8.0 A |
| Current adjustment steps | 8 levels |
| Micro‑stepping options | 2/2, 4/5, 8/10, 16/20, 32/40 |
Change the direction signal (DIR) in the control system or swap the motor wiring (e.g., exchange A+ and A‑).
The motor is likely operating in the resonant region; adjust the input pulse frequency (CP) to a different value to reduce noise and vibration.
The supply voltage may be too low for the higher frequency; increase the AC2 voltage within the specified limits to prevent stalling.