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Safety Absolute Encoder SRS50S-HFA0-K21 | SIL 2 & PL d Compliance | HIPERFACE Communication | by SICK
The Safety Absolute Encoder SRS50S-HFA0-K21 is designed for industrial automation, offering SIL 2 and PL d compliance for safety-critical applications. With 1,024 sine/cosine periods per revolution and a robust operating temperature range of -30 °C to +115 °C, this encoder ensures precise absolute position measurement in high-speed rotary applications up to 12,000 min⁻¹. Its IP40 enclosure rating provides protection in demanding environments, making it a reliable choice for machinery control.
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Product Name/Title: Safety Absolute Encoder SRS50S-HFA0-K21 | SIL 2 & PL d Compliance | HIPERFACE Communication | by SICK
Brand: SICK
SKU: 1051789
Alternatively Known As: Safety Absolute Encoder, HIPERFACE Encoder, SIL 2 Encoder, Absolute Rotary Encoder
Technical Specifications
- Safety integrity level: SIL 2 (IEC 61508), SILCL2 (IEC 62061)
- Category: 3 (EN ISO 13849)
- Performance level: PL d (EN ISO 13849)
- PFH: 1.0 x 10⁻⁸ per hour
- Mission time: 20 years
- Sine/cosine periods per revolution: 1,024
- Total steps: 32,768
- Measuring step: 0.3″ with 12-bit interpolation
- Integral non-linearity: ±45″ typical
- Differential non-linearity: ±7″
- System accuracy: ±52″
- Communication interface: HIPERFACE®
- Connection type: Male 8-pin radial connector
- Supply voltage: 7 V DC to 12 V DC (recommended 8 V DC)
- Current consumption: 80 mA
- Output frequency for sine/cosine signals: ≤ 200 kHz
- Shaft version: Tapered shaft
- Flange type: Spring mounting plate
- Moment of inertia: 10 gcm²
- Operating torque: 0.2 Ncm
- Start-up torque: +0.4 Ncm
- Permissible static movement: ±0.5 mm radial, ±0.75 mm axial
- Permissible dynamic movement: ±0.1 mm radial, ±0.2 mm axial
- Life of ball bearings: 3.6 x 10⁹ revolutions
- Operating temperature: -30 °C to +115 °C
- Storage temperature: -40 °C to +125 °C
- Relative humidity: 90%, no condensation
- Shock resistance: 100 g, 10 ms
- Vibration resistance: 20 g, 10 Hz to 2,000 Hz
- EMC: Compliant with EN 61000-6-2 and EN 61000-6-3
- Enclosure rating: IP40 with mating plug inserted
- Operating altitude: up to 2,000 m
- Dimensions (H x L x W): 50mm x 50mm x 50mm
- Weight: 0.2 kg
Key Features
- Safety integrity level SIL 2 (IEC 61508) and Performance Level d (EN ISO 13849)
- Absolute encoder with 1,024 sine/cosine periods per revolution
- Binary code output with HIPERFACE® communication interface
- Operating temperature range from -30 °C to +115 °C
- Operating speed up to 12,000 min⁻¹ with reliable absolute position
- Low operating torque of 0.2 Ncm and start-up torque of +0.4 Ncm
- IP40 enclosure rating with mating plug inserted
- High resistance to shocks (100 g) and vibrations (20 g, 10 Hz to 2,000 Hz)
Professional Installation Requirements
- Installation should be performed by qualified personnel familiar with safety-related control systems and electrical connections to ensure compliance with safety standards.
Applications
- Industrial automation requiring precise absolute position measurement
- Safety-related machinery control with SIL 2 and PL d compliance
- High-speed rotary applications up to 12,000 min⁻¹
- Environments requiring robust encoder with IP40 protection
Standards & Compliance
- AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- High reliability reduces downtime and waste from equipment failure
- Low power consumption electronics contribute to energy efficiency
Warranty Information
Standard manufacturer warranty applies; please refer to SICK's official warranty policy.
Available Now
The SICK SRS50S-HFA0-K21 Safety-Related Absolute Encoder is available for immediate purchase, ideal for industrial automation and safety-critical applications.
