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Incremental Rotary Encoder | 2,126 Pulses/Rev | ±0.008° Precision | IP65/IP67 Rated | by SICK

BRAND: SICK
SKU: 1090528
$912.70 List price: $1,147.20
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The Incremental Rotary Encoder DFS20A-A1ADL002126 offers high precision with a measuring step deviation of ±0.008°, making it ideal for industrial automation and motion control applications. With an incremental communication interface and robust mechanical design, it ensures reliable performance in challenging environments, featuring IP65 and IP67 ratings for protection against dust and water.
Technical Specifications
  • Mean time to dangerous failure (MTTFD): 330 years (EN ISO 13849-1)
  • Pulses per revolution: 2,126
  • Measuring step: ±90°, electric/pulses per revolution
  • Measuring step deviation: ±0.008° pulses 100 ... 10,000
  • Error limits: ±0.03°
  • Communication interface: Incremental TTL / RS-422
  • Number of signal channels: 6
  • 0-set function via hardware pin: H-active, L = 0 - 3 V, H = 4.0 - U s V
  • Initialization time: 40 ms
  • Output frequency: 820 kHz
  • Load current: 30 mA
  • Operating current: 50 mA (without load)
  • Connection type: Cable, 9-wire, radial, 1.5 m
  • Supply voltage: 4.5 ... 5.5 V
  • Reference signal: 1, positioned at 90°, logically gated with A and B
  • Code sequence: Counterclockwise
  • Reverse polarity protection: Yes
  • Short-circuit protection of outputs: Yes
  • Mechanical design: Solid shaft, square flange
  • Shaft diameter: 1/4 inch with flat
  • Shaft length: 16 mm
  • Shaft material: Stainless steel 1.4305
  • Flange material: Aluminum
  • Housing material: Aluminum
  • Start up torque: 0.5 Ncm (+20 °C)
  • Operating torque: 0.3 Ncm (+20 °C)
  • Permissible shaft loading: 80 N radial, 40 N axial
  • Operating speed: ≤ 9,000 min⁻¹
  • Moment of inertia of rotor: 15 gcm²
  • Bearing lifetime: 3.6 x 10^9 revolutions
  • Angular acceleration: ≤ 500,000 rad/s²
  • EMC: According to EN 61000-6-2 and EN 61000-6-3
  • Enclosure rating: IP65 shaft side, IP67 housing side
  • Permissible relative humidity: 90% (no condensation)
  • Operating temperature range: –30 °C to +85 °C
  • Storage temperature range: –40 °C to +100 °C
  • Resistance to shocks: 100 g, 11 ms
  • Resistance to vibration: 30 g, 10 Hz to 2,000 Hz
  • Dimensions (H x L x W): 58mm x 40mm x 58mm
  • Weight: 0.4 kg
Key Features
  • High precision with measuring step deviation of ±0.008°
  • Incremental communication interface with TTL / RS-422
  • 6-channel signal output with 2,126 pulses per revolution
  • Robust mechanical design with solid shaft and square flange
  • IP65 rated shaft side and IP67 rated housing side for protection
  • Wide operating temperature range from –30 °C to +85 °C
  • Reverse polarity and short-circuit protection
  • Low operating torque of 0.3 Ncm
Professional Installation Requirements
  • Installation should be performed by qualified personnel familiar with incremental encoders and electrical wiring standards to ensure proper setup and safety.
Applications
  • Industrial automation and control systems
  • Robotics and motion control
  • Machine tool positioning
  • Conveyor and material handling systems
Standards & Compliance
  • AS/NZS 3000 – Wiring Rules (Electrical Installation)
Environmental Benefits
  • Durable design reduces need for frequent replacements, minimizing waste
  • 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 DFS20A-A1ADL002126 incremental encoder is available for immediate purchase, ideal for industrial automation and precision motion control applications.