SICK EKM36-2KF0B020A

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The EKM36-2KF0B020A is a compact, high-resolution multiturn motor feedback encoder developed by SICK. It utilizes the HIPERFACE DSL® interface, enabling both power and data transmission through a single cable, which simplifies installation and reduces system complexity. This encoder is designed for integration into motors with a 36 mm diameter, making it ideal for applications where space is limited.

Key Technical Features

• Interface: HIPERFACE DSL® (digital single-cable communication)

• Resolution:

  • Per Revolution: 20-bit (1,048,576 steps)

  • Multiturn Capability: 12-bit (4,096 revolutions)

• System Accuracy: ±100 arcseconds

• Signal Noise: ±4 arcseconds (at 25 °C)

• Initialization Time: ≤500 ms

• User Memory: 8,192 bytes available

• Temperature Sensor Support: Compatible with NTC/PTC sensors

• Connection Type: 4-pin male connector

• Power Supply: 7 V to 12 V

• Current Consumption: ≤150 mA

• Weight: 0.1 kg

Mechanical & Environmental Properties

• Shaft Type: Tapered shaft

• Maximum Operating Speed: 12,000 rpm

• Maximum Angular Acceleration: ≤500,000 rad/s²

• Permissible Shaft Movement:

  • Radial: ±0.1 mm (static), ±0.05 mm (dynamic)

  • Axial: ±0.5 mm (static), ±0.1 mm (dynamic)

• Operating Temperature Range: –20 °C to +115 °C

• Storage Temperature Range: –40 °C to +125 °C

• Shock Resistance: 100 g for 6 ms

• Vibration Resistance: 50 g from 10 Hz to 2,000 Hz

• EMC Compliance: According to EN 61000-6-2, EN 61000-6-4, and IEC 61326-3

• Protection Class: IP40 (when cover is closed and connector is attached)

• Mean Time to Dangerous Failure (MTTFD): 500 years

Functional Safety Features

• Safety Integrity Level (SIL): SIL 2 (IEC 61508), SILCL 2 (EN 62061)

• Performance Level (PL): PL d (EN ISO 13849)

• Category: 3 (EN ISO 13849)

• Test Rate: 1 hour

• Maximum Demand Rate: 216 µs

• Safety-Related Resolution:

  • Channel 1: 20-bit

  • Channel 2: 9-bit

• Mission Time (TM): 20 years

Applications

• Industries:

  • Packaging

  • Robotics

  • Industrial Automation

• Use Cases:

  • Precise position measurement in servo motors

  • Applications requiring high-resolution multiturn feedback

  • Environments demanding compact encoder solutions