ERM 2400 series

    Specifications

    Scanning head

    AK ERM 2480

    Interface

      1 VPP

    Cutoff frequency –3 dB

    ≥ 300 kHz

    Signal period

    ≈ 400 µm

    Line count*

    See ''Scale drum”

    Electrical connection*

    Cable 1 m, with or without coupling, tangential or axial cable outlet

    Cable length

    ≤ 150 m (with HEIDENHAIN cable)

    Voltage supply

    5 V DC ± 0.5 V

    Current requirement

    ≤ 150 mA (without load)

    Vibration 55 to 2000 Hz

    Shock 6 ms

    ≤ 400 m/s2 (EN 60 068-2-6)

    ≤ 1000 m/s2 (EN 60 068-2-27)

    Operating temperature

    –10 °C to +100 °C

    Protection EN 60 529

    IP67

    Mass

    ≈ 0.15 kg (with cable)

    Scale drum

    ERM 2404 scale drum

    TTR ERM 2405

    Measuring standard

    MAGNADUR graduation; signal period of approx. 400 µm

    Line count*

    512

    600

    900

    1 024

    512

    600

    Position error per
    signal period 1)

    ±18''

    ±15.5''

    ±10.5''

    ±9''

    ±18''

    ±15.5''

    Accuracy of graduation

    ±17''

    ±14''

    ±10''

    ±9''

    ±17''

    ±14''

    Reference mark

    One

    Inside diameter*

    40 mm

    55 mm

    80 mm

    100 mm

    40 mm

    55 mm

    Outside diameter

    64.37 mm

    75.44 mm

    113.16 mm

    128.75 mm

    64.37 mm

    75.44 mm

    Mech. permissible speed

    ≤ 42 000 rpm

    ≤ 36 000 rpm

    ≤ 22 000 rpm

    ≤ 20 000 rpm

    ≤ 33 000 rpm

    ≤ 27 000 rpm

    Moment of inertia of rotor

    0.12 · 10-3 kgm2

    0.19 · 10-3 kgm2

    1.0 · 10-3 kgm2

    1.4 · 10-3 kgm2

    0.11 · 10-3 kgm2

    0.17 · 10-3 kgm2

    Permissible axial motion

    ±0.5 mm

    Mass approx.

    0.17 kg

    0.17 kg

    0.42 kg

    0.43 kg

    0.15 kg

    0.15 kg

    * Please select or indicate when ordering

    1) The position error within one signal period and the accuracy of the graduation result together in the encoder-specific error;
    for additional error through mounting and the bearing of the measured shaft, see Measuring accuracy

    Other line counts/dimensions upon request