LIDA 479/489

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