Motor feedback systems rotary HIPERFACE®

Your Benefits

  • Its small dimensions allow manufacturers of small and very small motors to achieve a significant reduction in the length of their motors
  • The SEK/SEL37 motor feedback systems are particularly suitable for use under harsh ambient conditions
  • The capacitive measurement principle with holistic sensing enables high axial and radial tolerances
  • Due to the uniform mechanical component, a high level of flexibility can be achieved with SKS/SKM36 when using with various encoder systems


The SEK/SEL37 capacitative motor feedback systems are at home in two worlds of automation: One the one hand, the present world of resolvers in which users require high performance from absolute position encoders, such as servo motors or feed axes. On the other hand, thanks to the flexibility in connection with the automation engineering features, the SEK/SEL37 devices are particularly interesting for manufacturers of servo motors. With 16 sine/cosine signals per revolution, this family represents the basic solution for MFB systems with the HIPERFACE® interface. The centerpiece of the product family is a bearing-free, capacitive sensor element. The holistic scanning process virtually offsets eccentricity errors and is extremely rugged. Possible sources of error are nearly completely ruled out as there are no wear and tear parts. Furthermore, the motor feedback systems feature high temperature resistance, which was previously reserved for resolvers. SEK/SEL37 motor feedback systems features a HIPERFACE® interface recognized all over the globe, which is supported by many well-known drive manufacturers.

At a glance
  • Motor feedback systems for the basic performance range

  • 16 sine/cosine periods per revolution

  • Absolute position with a resolution of 512 increments per revolution and 4,096 revolutions with the multiturn system

  • Programming of the position value

  • Electronic type label

  • HIPERFACE® interface

  • Installed version with tapered shaft and axial or radial male connector connection

  • Conforms to RoHs

Technical overview

  • Technical data overview

    Technical data overview

    TypeFor integration
    ModelAbsolute Singleturn / Absolute Multiturn
    Communication interfaceHIPERFACE®
    Sine/cosine periods per revolution16
    Mechanical interfaceTapered shaft, 5 mm
    Connection type

    Male connector, 8-pin, radial

    Male connector, 8-pin, axial

    Available memory area1,792 Byte E2PROM 2048
    Measurement principleCapacitive
All technical data can be found accompanying the individual product