Motor feedback systems rotary HIPERFACE DSL®

High-resolution motor feedback system for dynamic servo drives

Your Benefits

  • Thanks to data transmission exclusively in digital format, no analog components are necessary on the controller side
  • The absence of a separate encoder cable considerably reduces costs. Data transmission is synchronized with the controller cycle.
  • Minimum cabling thanks to integration of encoder communication into the motor cable
  • Optimization of the controller circuit via automated synchronization with the controller cycle


High-resolution motor feedback system for dynamic servo drives

The EFS/EFM50 motor feedback system features a compact and rugged design with a diameter of 50 mm. In combination with the absolute location indicator system of the motor feedback system, a resolution of up to 23 bits per revolution and a maximum of 4,096 revolutions, this design is unique in its class.

At a glance
  • Motor feedback system with HIPERFACE DSL® interface
  • Compact, rugged design with 50 mm diameter
  • Up to 23-bit resolution per revolution and 4,096 revolutions measurable with the multiturn system
  • Facility for connecting an external temperature sensor
  • E²Prom with 8 KB of free memory space
  • SIL2-certified (only valid for EFS/EFM50-2)
  • 12-bit resolution of the safe position value
  • Usage chart


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Technical overview

  • Technical data overview

    Technical data overview

    TypeFor integration
    ModelAbsolute Singleturn / Absolute Multiturn
    Communication interfaceHIPERFACE DSL®
    Resolution per revolution21 bit / 23 bit
    Safety system– / ✔
    Mechanical interfaceTapered shaft
    Connection typeMale connector, 4-pin
    Available memory area8,192 Byte
    Measurement principleOptical
All technical data can be found accompanying the individual product