LIDA 479/489

    Spécifications techniques

    Linear scale

    LIDA 409

    Measuring standard

    Coefficient of linear expansion

    Steel scale tape with METALLUR scale grating; grating period 20 µm

    αtherm  10 · 10–6 K–1

    Accuracy grade*

    ±3 µm, ±15 µm1)

    Baseline error

    ±0.750 µm/50 mm (typical)

    Measuring length ML* in mm

    70 120 170 220 270 320 370
    420 520 620 720 820 920 1020

    Scale tape from the roll: 2 m,4 m, 6 m

    Reference marks

    One at midpoint of measuring length

    Every 50 mm

    Mass

    31 g/m

    Scanning head

    AK LIDA 48

    AK LIDA 47

    Interface

      1 VPP

    TTL

    Integrated interpolation*

    Signal period

    20 µm

    5-fold

    4 µm

    10-fold

    2 µm

    50-fold

    0.4 µm

    100-fold

    0.2 µm

    Cutoff frequency –3 dB

    400 kHz

    Scanning frequency*

    400 kHz

    200 kHz

    100 kHz

    50 kHz

    200 kHz

    100 kHz

    50 kHz

    25 kHz

    50 kHz

    25 kHz

    12.5 kHz

    25 kHz

    12.5 kHz

    6.25 kHz

    Edge separation a2)

    0.100 µs

    0.220 µs

    0.465 µs

    0.950 µs

    0.100 µs

    0.220 µs

    0.465 µs

    0.950 µs

    0.080 µs

    0.175 µs

    0.370 µs

    0.080 µs

    0.175 µs

    0.370 µs

    Traversing speed2)

    480 m/min

    480 m/min

    240 m/min

    120 m/min

    60 m/min

    240 m/min

    120 m/min

    60 m/min

    30 m/min

    60 m/min

    30 m/min

    15 m/min

    30 m/min

    15 m/min

    7.5 m/min

    Interpolation error

    ±45 nm

    Limit switches

    L1/L2 with two different magnets; output signals: TTL (without line driver)

    Electrical connection

    Cable, 0.5 m, 1 m or 3 m with D-sub connector (male) 15-pin

    Cable length

    See interface description, however limit: 20 m (with HEIDENHAIN cable)

    Voltage supply

    DC 5 V ±0.5 V

    Current consumption

    < 130 mA

    < 150 mA (without load)

    Vibration 55 Hz to 2000 Hz

    Shock 6 ms

    500 m/s2 (EN 60 068-2-6)

    1000 m/s2 (EN 60 068-2-27)

    Operating temperature

    –10 °C to 70 °C

    Mass Scanning head

    Connecting cable

    Connector

    20 g (without cable)

    22 g/m

    32 g

    * Please select when ordering

    1) ±5 µm after linear length-error compensation in the evaluation electronics

    2) At a corresponding cutoff or scanning frequency