Incremental Rotary Encoder DFS20A-B1A1L001000 | ±0.008° Precision | IP65/IP67 Rated | by SICK
The Incremental Rotary Encoder DFS20A-B1A1L001000 offers high precision with a measuring step deviation of ±0.008°, making it ideal for industrial automation and control systems. With a robust mechanical design featuring a solid shaft and servo flange, it ensures reliable performance in demanding environments, while its IP65/IP67 rating provides excellent protection against dust and moisture.
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- Pulses per revolution: 1,000
- 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-channel
- 0-set function via hardware pin: Yes, H-active
- 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 at 180°, gated with A
- Code sequence: Clockwise
- Reverse polarity protection: Yes
- Short-circuit protection of outputs: Yes
- Mechanical design: Solid shaft, Servo flange
- Shaft diameter: 1/4″ 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 10⁹ 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): 40mm x 80mm x 40mm
- Weight: 0.4 kg
- High precision with measuring step deviation of ±0.008°
- Robust mechanical design with solid shaft and servo flange
- IP65 rated shaft side and IP67 rated housing side for protection
- Supports incremental communication interface with TTL / RS-422
- Reverse polarity and short-circuit protection
- Operating temperature range from –30 °C to +85 °C
- High resistance to shocks (100 g) and vibration (30 g)
- Installation should be performed by qualified personnel familiar with incremental encoders and electrical wiring standards to ensure proper setup and safety.
- Industrial automation and control systems
- Robotics and servo motor feedback
- Position and speed measurement in manufacturing
- Machine tool and conveyor systems
- AS/NZS 3000 – Wiring Rules (Electrical Installation)
- Durable design reduces need for frequent replacements, minimizing waste
- Energy-efficient operation supports sustainable industrial automation
Standard manufacturer warranty applies; please refer to SICK for specific terms.
The SICK DFS20A-B1A1L001000 incremental encoder is available for immediate purchase, ideal for industrial automation and precision measurement applications.
