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Absolute Rotary Encoder SRM50S-HEV0-K21 | SIL 2 Safety Level | 4,096 Absolute Revolutions | HIPERFACE Communication | by SICK
The SRM50S-HEV0-K21 Absolute Rotary Encoder is designed for high-precision rotary position measurement in industrial automation. With a SIL 2 safety integrity level and robust operating temperature range from -30 °C to +115 °C, it ensures reliable performance in safety-critical applications. Featuring HIPERFACE communication and a tapered shaft, this encoder is perfect for motion control systems requiring accuracy and durability.
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Product Name/Title: Absolute Rotary Encoder SRM50S-HEV0-K21 | SIL 2 Safety Level | 4,096 Absolute Revolutions | HIPERFACE Communication | by SICK
Brand: SICK
SKU: 1051811
Alternatively Known As: Absolute rotary encoder, HIPERFACE encoder, SIL 2 encoder, rotary position sensor
Technical Specifications
- Safety integrity level: SIL 2 (IEC 61508), SILCL2 (IEC 62061)
- Category: 3 (EN ISO 13849), Performance Level: PL d
- Sine/cosine periods per revolution: 1,024
- Absolute ascertainable revolutions: 4,096
- Total number of steps: 134,217,728
- Measuring step: 0.3″ with 12-bit interpolation
- Integral non-linearity: ±45″ typical
- Differential non-linearity: ±7″
- Operating speed: ≤ 6,000 min⁻¹ for absolute position
- System accuracy: ±52″
- Code type: Binary, increasing clockwise rotation
- Communication interface: HIPERFACE®
- Connection: 8-wire radial cable, 2 m length
- 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: Tapered shaft
- Flange type: Rubber support
- Weight: ≤ 0.2 kg
- Moment of inertia: 10 gcm²
- Operating speed max: ≤ 12,000 min⁻¹
- Angular acceleration max: ≤ 200,000 rad/s²
- Operating torque: 0.2 Ncm
- Start-up torque: +0.4 Ncm
- Permissible static movement: ±0.3 mm radial, ±0.75 mm axial
- Permissible dynamic movement: ±0.1 mm radial, ±0.2 mm axial
- Ball bearing life: 3.6 x 10^9 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: EN 61000-6-2 and EN 61000-6-3 compliant
- Enclosure rating: IP40 with mating plug
- 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 SILCL2 (IEC 62061)
- Category 3 (EN ISO 13849) with Performance Level PL d
- High resolution with 1,024 sine/cosine periods per revolution
- Absolute position measurement with 4,096 revolutions and 134,217,728 total steps
- Robust operating temperature range from -30 °C to +115 °C
- HIPERFACE® communication interface
- Tapered shaft with rubber support flange
- IP40 enclosure rating with mating plug inserted
- Low operating torque of 0.2 Ncm and start-up torque of +0.4 Ncm
- Long ball bearing life of 3.6 x 10^9 revolutions
Professional Installation Requirements
- Installation should be performed by qualified personnel familiar with safety-related control systems and electrical wiring standards to ensure compliance and optimal performance.
Applications
- Industrial automation and control systems
- Safety-related motion control applications
- High-precision rotary position measurement
Standards & Compliance
- AS/NZS 3000 – Wiring Rules (Electrical Installation)
Environmental Benefits
- High reliability reduces downtime and waste from replacements
- Low power consumption with 80 mA current draw
- Durable design extends product lifecycle
Warranty Information
Standard manufacturer warranty applies; please refer to SICK's official warranty policy.
Available Now
The SICK SRM50S-HEV0-K21 Absolute Encoder is available for immediate purchase, ideal for industrial automation and safety-critical applications.
