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The STS030-HN030-AK22 is a non-contact, bearingless absolute rotary encoder from the SICK STS series, designed for direct motor integration with a 30 mm through hollow shaft. It uses the HIPERFACE® digital interface, which combines power and data over a single cable, simplifying installation and minimizing wiring. The encoder’s compact and wear-free design ensures high reliability, even in environments with tight space constraints.

Key Technical Specifications

• Interface: HIPERFACE® (digital single-cable communication)

• Resolution:

  • Sine/Cosine Periods: 70 per revolution

  • Interpolated Steps via RS485: 2,240

  • Measuring Step Size: 4.52 arcseconds (with 12-bit interpolation)

• System Accuracy: ±0.09°

• Repeatability: 0.01°

• User Memory: 1,792 bytes

• Coding Type: Binary

• Counting Direction: Clockwise (viewed from the A-side = increasing value)

• Connector: 8-pin male connector

• Power Supply: 7 to 12 V DC (recommended: 8 V)

• Current Consumption: ≤250 mA

• Weight:

  • Sensor Head: ≤0.15 kg

  • Magnetic Ring: ≤0.25 kg

• Moment of Inertia: 85 g·cm²

Mechanical & Environmental Characteristics

• Shaft Type: 30 mm through hollow shaft

• Max Speed: 10,500 rpm

• Max Angular Acceleration: ≤50,000 rad/s²

• Permissible Shaft Movement:

  • Radial: ≤0.6 mm

  • Axial: ±0.5 mm

• Operating Temperature:

  • Sensor: –30 °C to +105 °C

  • Magnetic Ring: –30 °C to +100 °C

• Storage Temperature: –30 °C to +100 °C

• Humidity: Up to 95% (non-condensing)

• Shock Resistance: 100 g for 6 ms (per EN 60068-2-27)

• Vibration Resistance: 20 g from 10 Hz to 2,000 Hz (per EN 60068-2-6)

• EMC Standards: EN 61000-6-2 and EN 61000-6-4

• Protection Rating: IP00

Typical Applications

• Industries:

  • Packaging

  • Robotics

  • Automation

• Use Cases:

  • Precise non-contact rotary position sensing

  • High-speed applications with minimal mechanical wear

  • Large-shaft integration where traditional encoders won’t fit