MSS 15

Incremental modular angle measurement in segment version

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MSS 15


Incremental modular angle encoders MSS 15 without integral bearing are used as position and rotator control for electrical drives and in the measurement technology.

  • Online signal stabilization
  • Display of the signal quality directly at the scanning head via 3-coloured LED function
  • Permanent control of the signals over the whole measuring range
  • High quality of the signals due to singlefield scanning
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MSS 15

Technical Data

Model AK MSS 15 1VppAK MSS 15 TTLx1uAK MSS 15 TTLx5AK MSS 15 TTLx10AK MSS 15 TTLx20AK MSS 15 TTLx25AK MSS 15 TTLx50AK MSS 15 TTLx100AK MSS 15 TTLx200
Measuring step [°]depending on external interpolation360°/(LPR × 4)360°/(LPR × 20)360°/(LPR × 40)360°/(LPR × 80)360°/(LPR × 100)360°/(LPR × 200)360°/(LPR × 400)360°/(LPR × 800)
Integrated interpolation--Times 1Times 5Times 10Times 20Times 25Times 50Times 100Times 200
Max. circumferential speed at scanning diameter D [m/s]10.0010.006.403.202.401.921.920.960.96
Max. output frequency250 kHz----------------
Edge separation amin--500 ns300 ns300 ns200 ns200 ns100 ns100 ns50 ns
Further features of the scanning head
Interpolation error ±(60)" / D
Electrical connection Cable, 0.5 m, 1 m or 3 m with D-sub connector 15-pin (male)
Voltage supply +5 V ±10 %
Power consumption Max. 880 mW (unloaded)
Current consumption Max. 160 mA (unloaded)
Vibration ≤150 m/s² (40 to 2000 Hz)
Shock ≤750 m/s² (8 ms)
Permissible temperature −20 °C to +70 °C (storage), 0 °C to +70 °C (operation)
Mass (approx.) Scanning head: 17g
Cable: 25 g/m
D-sub connector: 28 g
Graduation carrier
Model MB MSS 15: Steel tape scale with adhesive tape (SK)
Coefficient of expansion α ≈ 10 × 10-6 K-1
Possible scanning diameter > 75 mm to ≤ 1000 mm (at larger diameters MS 15 applicable)
≤ 75 mm on request
Accuracy of the grating (based on neutral axis) ±15 µm/m
Theoretical lines per revolution (360°) LPR = 78.5398 × D + 33.1942 (round down result to integer)
Reference marks
  • Standard: One reference mark at any position within measuring range
  • On request: additional or distance-coded reference marks
    Mass (approx.) 20 g/m
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    MSS 15


    • Mounting aid MH MSR 15

      Mounting aid for the scanning head of MSR 15 und MSS 15 (diameter-dependent).

    • PWT 100 / PWT 101

      The PWT 100 / PWT 101 is a testing device for checking the function and adjustment of RSF Elektronik encoders. Thanks to its compact dimensions and robust design, the PWT 100 / PWT 101 is ideal for mobile use. A 4.3-inch touchscreen provides for display and operation. For example, for encoders with EnDat interface you can not only display the position value but also export the online diagnosis, shift datums, and perform further inspection functions.

      Available functions
      The performance range of the PWT 100 / PWT 101 can be expanded by firmware update. Appropriate firmware files that can be imported to the PWT 100 through a memory card (not included in delivery) will be made available at 

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    MSS 15


    3d models
    26.7 kb
    415.31 kb
    Mounting Instructions
    MB MSS 15
    1303.95 kb
    AK MSR 15, AK MSS 15
    2547.55 kb
    EC Declaration of conformity
    MSS 15- EC declaration of conformity
    538.05 kb
    MSR 15, MSS 15
    1956.68 kb
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