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DBS50E-S5AK02500

The SICK DBS50E-S5AK02500 is a rugged, solid-shaft incremental encoder from the DBS36/50 series, designed for high-resolution position and speed feedback in industrial applications. Built with an 8 mm stainless-steel shaft and face-mount flange, it offers 2,500 pulses per revolution (PPR) and utilizes a TTL/RS-422 interface for precise signaling.

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Technical Specifications
Performance

Pulses per Revolution (PPR): 2,500

Measuring Step per Pulse: 90° electric

Measuring Step Deviation: ±18° per pulse

Error Limits: ±54° per pulse

Duty Cycle: ≤ 0.5 ± 5%

Electrical & Output

Interface Type: Incremental, TTL/RS-422

Signal Channels: 6-channel (A, A-, B, B-, Z, Z-)

Initialization Time: < 3 ms

Max Output Frequency: ≤ 300 kHz

Load Current: ≤ 30 mA

Power Consumption (no load): ~ ≤ 50 mA

Reference Signal: 1 pulse per revolution at 90° electric, logically gated with A/B

Supply Voltage: 4.5 … 5.5 V DC

Protections: Reverse-polarity and short-circuit (if wired correctly)

Mechanical Design

Shaft: Solid stainless-steel, Ø 8 mm with flat, length ~15.5 mm

Mounting: Face-mount flange, aluminum housing

Weight: ~180 g (with cable)

Start-up Torque: +0.9 N·cm (at 20 °C)

Operating Torque: 0.6 N·cm (at 20 °C)

Permissible Shaft Load: 30 N axial; 50 N radial

Operating Speed: 6,000 min⁻¹ (typical); max 8,000 min⁻¹ (short-term)

Rotor Moment of Inertia: 0.65 g·cm²

Bearing Life: 2 × 10⁹ revolutions

Angular Acceleration: ≤ 500,000 rad/s²

Environmental & Reliability

EMC Compliance: EN 61000-6-2 and EN 61000-6-3 (Class A)

Protection Class: IP65

Humidity Tolerance: Up to 90% (no condensation)

Operating Temperature: –20 °C … +85 °C (–35 °C … +95 °C on request)

Storage Temperature: –40 °C … +100 °C (unpackaged)

Shock Resistance: 100 g, 6 ms (EN 60068-2-27)

Vibration Resistance: 20 g, 10 Hz … 2,000 Hz (EN 60068-2-6)

Safety & Certifications

MTTFd: 600 years (EN ISO 13849-1)

Certifications: EU & UK conformity, ACMA, China-RoHS, cRUus