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The SES90-HN050AK22 is a high-resolution absolute rotary encoder from the SICK SES/SEM90 series. It is designed for direct integration into motors with large hollow shafts. Using the HIPERFACE® digital interface, it enables both power and data transmission over a single cable, simplifying the installation and reducing cabling complexity. Its compact, bearing-free design ensures wear-free operation and high reliability, making it ideal for applications requiring precise position feedback in limited spaces.

Key Technical Specifications

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

• Resolution:

  • Singleturn: 64 sine-cosine periods

  • Multiturn: Not applicable (singleturn only)

• System Accuracy: ±120 arcseconds

• Signal Noise: ±10 arcseconds (at 25 °C)

• Startup Time: ≤500 milliseconds

• User Memory: 2,048 bytes available

• Temperature Sensor Compatibility: Supports NTC/PTC sensors

• Connector Type: 8-pin male connector

• Power Supply: 7 V to 12 V DC

• Current Consumption: ≤150 mA

• Weight: Approximately 329 g

Mechanical & Environmental Characteristics

• Shaft Type: 50 mm hollow shaft

• Maximum Continuous Operating Speed: 6,000 rpm

• Maximum Angular Acceleration: ≤100,000 rad/s²

• Permissible Shaft Movement:

  • Radial:

    • Static: ±0.1 mm

    • Dynamic: ±0.05 mm

  • Axial:

    • Static: ±0.5 mm

• Operating Temperature Range: –30 °C to +115 °C

• Storage Temperature Range: –40 °C to +125 °C

• Shock Resistance: 100 g for 6 milliseconds

• Vibration Resistance: 20 g from 5 Hz to 2,000 Hz

• EMC Compliance: According to EN 61000-6-2, EN 61000-6-4, and IEC 61000-6-7

• Protection Rating: IP40 (with cover and connector properly closed)

Typical Applications

• Industries:

  • Packaging machinery

  • Robotics

  • Factory automation

• Use Cases:

  • Precise singleturn rotary position feedback

  • Servo motor integration with large shaft designs

  • Applications demanding robust and compact encoder solutions