STN-22
The STN-22 is a contactless optical reflective absolute position sensor that delivers high-precision single-turn feedback for compact motion control systems. Its integrated dual sensing heads and Duplus Core redundant technology provide reliable, high-resolution performance even in demanding environments.
With SSI and BiSS-C interfaces, the STN-22 delivers 18–22-bit resolution and ±4 mdeg accuracy, giving precise and repeatable feedback. Its low-profile 22 mm design and wide assembly tolerances simplify alignment and installation, making it a true plug-and-play solution for OEMs and system integrators.
The STN-22 operates reliably under harsh conditions, combining robust mechanical design, low power consumption, and high vibration and shock resistance to maintain long-term stability in automation, robotics, and precision drive systems.
Technical Specifications – STN-22
| Parameter | Specification |
|---|---|
| Technology | Optical reflective, contactless |
| Interfaces | SSI, BiSS-C |
| Resolution | 18–22 bit |
| Accuracy (INL) | ±4 mdeg |
| Repeatability | ±1 count |
| Data Latency | 20 µs |
| Startup Time | 20 ms |
| Power Supply | 5 V DC ±5% |
| Current Consumption | 150 mA |
| Max Rotation Speed | 5,000 RPM |
| Rotor Moment of Inertia | 60 g·mm² |
| Permissible Radial Run-out | ±0.4 mm |
| Rotor / Stator Air Gap | 1.75 ± 0.5 mm |
| Operating Temperature | –40°C to +100°C |
| Humidity | 95% RH, non-condensing (IEC 60068-2-78) |
| IP Rating | IP40 (enclosed) |
| Shock Resistance | 1000 m/s², 6 ms, ½ sine, 3 axes |
| Vibration Resistance | 100 m/s² max @ 55–2000 Hz, 3 axes |
| EMC Compliance | IEC 61326-1 |
| Weight | 6 g |
