LIDA 475/485

    Specifications

    Linear scale

    LIDA 405

    Measuring standard

    Coefficient of linear expansion

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

    Depends on the mounting surface

    Accuracy grade

    ± 5 µm

    Measuring length ML* in mm

    140, 240, 340, 440, 540, 640, 740, 840, 940, 1040, 1140, 1240, 1340, 1440,

    1540, 1640, 1740, 1840, 1940, 2040

    Larger measuring lengths up to 30 040 mm with a single-section scale tape and individual
    scale-carrier sections

    Reference marks

    One at midpoint of measuring length

    Weight

    115 g + 0.25 g/mm measuring length

    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 a1)

    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 speed1)

    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

    Limit switches

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

    Electrical connection

    Cable, 3 m with D-sub connector (male) 15-pin, with interface electronics for the AK LIDA 47 in the connector

    Cable length

    See Interface Description, but limit: ≤ 20 m (with HEIDENHAIN cable)

    Voltage supply

    5 V DC ± 0.25 V

    5 V DC ± 0.25 V

    5 V DC ± 0.25 V

    Current requirement

    < 100 mA

    < 170 mA (without load)

    < 255 mA (without load)

    Vibration 55 to 2 000 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

    Weight Scanning head

    Connecting cable

    Connector

    20 g (without connecting cable)

    22 g/m

    LIDA 485: 32 g, LIDA 475: 140 g

    * Please select when ordering

    1) At the corresponding cutoff or scanning frequency