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LIDA 477 / LIDA 487

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Linear scale

LIDA 407

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 (up to ML 1040)
± 5 µm (as to ML 1240)
± 15 µm1)

Measuring length ML* in mm

240, 440, 640, 840, 1040, 1240, 1440, 1640, 1840, 2040, 2240, 2440, 2640, 2840,

3040, 3240, 3440, 3640, 3840, 4040, 4240, 4440, 4640, 4840, 5040, 5240, 5440, 5640,

5840, 6040

Reference marks

One at midpoint of measuring length

Weight

25 g + 0.1 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 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

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 487: 32 g, LIDA 477: 140 g

* Please select when ordering

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

2) At the corresponding cutoff or scanning frequency