Absolute encoders

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    • Performance
      Max. number of steps per revolution (max. resolution)4,096 (12 bit)
      Error limits G0.35° (at 20 °C) 1)
      Repeatability standard deviation σr0.25° (at 20 °C) 2)
      • 1) In accordance with DIN ISO 1319-1, position of the upper and lower error limit depends on the installation situation, specified value refers to a symmetrical position, i.e. deviation in upper and lower direction is the same.
      • 2) In accordance with DIN ISO 55350-13; 68.3% of the measured values are inside the specified area.
    • Interfaces
      Communication interfaceIO-Link
      Communication Interface detailV1.1, COM3 (230,4 kBaud)
      Process dataPosition, speed
      Parameterising data

      Number of steps per revolution


      Counting direction

      Sampling rate for speed calculation

      Unit for output of the speed value

      Status informationVia status LED
      Initialization time2 s 1)
      Cycle time≤ 3.2 ms
      • 1) Valid positional data can be read once this time has elapsed.
    • Electrical data
      Connection typeMale connector, M12, 4-pin, universal
      Supply voltage18 ... 30 V
      Power consumption≤ 1.5 W
      Reverse polarity protection
      MTTFd: mean time to dangerous failure240 years (EN ISO 13849-1) 1)
      • 1) This product is a standard product and does not constitute a safety component as defined in the Machinery Directive. Calculation based on nominal load of components, average ambient temperature 40°C, frequency of use 8760 h/a. All electronic failures are considered hazardous. For more information, see document no. 8015532.
    • Mechanical data
      Mechanical designSolid shaft, face mount flange
      Shaft diameter1/4"
      Wave length12 mm
      Weight0.12 kg 1)
      Shaft materialStainless steel
      Flange materialAluminum
      Housing materialZinc
      Start up torque< 0.5 Ncm
      Operating torque< 0.5 Ncm
      Permissible Load capacity of shaft40 N / 20 N / radial / axial
      Moment of inertia of the rotor2.5 gcm²
      Bearing lifetime3.6 x 10^8 revolutions
      Angular acceleration≤ 500,000 rad/s²
      Operating speed≤ 9,000 min⁻¹
      • 1) Relates to devices with male connector connection.
    • Ambient data
      EMCAccording to EN 61000-6-2, EN 61000-6-3 and EN 61131-9
      Enclosure ratingIP65 (IEC 60529)
      Permissible relative humidity90 % (Condensation not permitted)
      Operating temperature range–20 °C ... +70 °C
      Storage temperature range–40 °C ... +100 °C
      Resistance to shocks100 g, 6 ms (according to EN 60068-2-27)
      Resistance to vibration20 g, 10 Hz ... 2,000 Hz (according to EN 60068-2-6)
    • Classifications
      ECl@ss 5.027270502
      ECl@ss 5.1.427270502
      ECl@ss 6.027270590
      ECl@ss 6.227270590
      ECl@ss 7.027270502
      ECl@ss 8.027270502
      ECl@ss 8.127270502
      ECl@ss 9.027270502
      ETIM 5.0EC001486
      ETIM 6.0EC001486
      UNSPSC 16.090141112113

    Technical drawings

    solid shaft, face mount flange, connector outlet
    Proposed fitting Solid shaft, face mount flange with flange adapter, centering collar D20 on D50 (BEF-FA-020-050, 2072297)
    Proposed fitting Solid shaft, face mount flange with flange adapter, centering collar D20 on D24 (BEF-FA-020-024, 2072294)
    PIN assignment
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