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Incremental Rotary Encoder 2,126 Pulses Rev ±0.008° Precision SICK

BRAND: SICK
SKU: 1090528
$958.30 List price: $1,204.50
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The Incremental Rotary Encoder DFS20A-A1ADL002126 offers high precision with a measuring step deviation of ±0.008°
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.

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