Aura® P Absolute Encoders
Aura P is an extension to the Aura Optical Encoder Series, offering a connectivity-ready high resolution absolute encoder in a super-compact form-factor. Maintaining its well-known high accuracy, run speed, and wide alignment tolerances, Aura P is now easier to install and integrate than ever, reducing overall time-to-market.
Aura employs a short wavelength LED for precise absolute position decoding. An advanced sensor and incremental scale track produce pure sine wave signals, enabling high resolution interpolation with run-speeds up to 83,721 rpm (with 18 mm scale). High accuracy and repeatability satisfy the most demanding of applications.
The small, low power consumption SMT package now comes integrated into a ready-to-use OEM PCB. The high speed BiSS-C interface delivers the minimal latency required for high bandwidth control loops. The generous alignment tolerances facilitate installation and the built-in scale eccentricity compensation eliminates the cost of dual averaging encoders and improves production efficiency.
SmartPrecision™ III is intuitive software for calibration, alignment, and status monitoring. Encoder data can be sampled and recorded in a CSV file. To simplify installation, hubs with pre-mounted encoder scales are offered
Features and benefits
- Aura on a super-compact PCBA
- Outputs true absolute position
- High resolution and accuracy
- Low power consumption
- Supply voltage as low as 2.97V
- Zero hysteresis
- Capable of running at high mechanical speed
- Easy to Install
- BiSS-C communication
- Intuitive commissioning Software
Specifications
| Rotary | Linear | ||
|---|---|---|---|
| AUR P-R-B | AUR P-R-C | ||
| Dimensions | 12.0 x 14.0 x 7.4 mm | 12.0 x 14.0 x 7.4 mm | 12.0 x 14.0 x 7.4 mm |
| Scale Diameter | 18.0 mm | 26.0 mm | 33.0 mm | 51.8 mm | 63.5 mm | – |
| Interfaces | BiSS-C | BiSS-C | BiSS-C |
| Resolution | 18-22 bits | 18-22 bits | ± 12.5 nm to ± 200 nm |
| Accuracy | ± 0.01° | ± 0.005° | ± 2.0 µm (250 mm glass scale) |
| Repeatability | 1 LSB | 1 LSB | 1 LSB |
| Max Speed | 83,721 RPM | 56,250 RPM | 41,983 RPM | 18,922 RPM | 15,859 RPM | 50 m/s |
| Input Voltage | – | – | 2.97V to 5.5 V |
| Supply Current | – | – | 90 mA (5V) | 180 mA (2.97V) |
| Op. Temperature | – | – | -40°C to 85°C |
| Weight | – | – | 0.9 g |
