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HEIDENHAIN LIF 48 Exposed Linear Encoder

BRAND : HEIDENHAIN

Scale

LIF 401 R

Measuring standard*

Coefficient of linear expansion

SUPRADUR phase grating on Zerodur glass ceramic or glass; grating period: 8 µm

?therm = (0±0.1) · 10–6 K–1 (Zerodur glass ceramic)

?therm  8 · 10–6 K–1 (glass)

Accuracy grade*

±1 µm (only for Zerodur glass ceramic of up to a measuring length of 1020 mm), ±3 µm

Details

Scale

LIF 401 R

Measuring standard*

Coefficient of linear expansion

SUPRADUR phase grating on Zerodur glass ceramic or glass; grating period: 8 µm

?therm = (0±0.1) · 10–6 K–1 (Zerodur glass ceramic)

?therm  8 · 10–6 K–1 (glass)

Accuracy grade*

±1 µm (only for Zerodur glass ceramic of up to a measuring length of 1020 mm), ±3 µm

Baseline error

? ±0.225 µm/5 mm

Measuring length (ML)*
in mm

70 120 170 220 270 320 370 420 470 520 570 620 670

720 770 820 870 920 970 1020 1140 1240 1340 1440 1540 1640

Reference marks

One at midpoint of measuring length

Mass

0.8 g + 0.08 g/mm measuring length

Scanning head

LIF 48

LIF 47

Interface

1 VPP

? TTL

Integrated interpolation*

Signal period

4 µm

5-fold

0.8 µm

10-fold

0.4 µm

20-fold

0.2 µm

50-fold

0.08 µm

100-fold

0.04 µm

Cutoff frequency –3 dB

? 1 MHz

Scanning frequency*

? 500 kHz

? 250 kHz

? 125 kHz

? 250 kHz

? 125 kHz

? 62.5 kHz

? 250 kHz

? 125 kHz

? 62.5 kHz

? 100 kHz

? 50 kHz

? 25 kHz

? 50 kHz

? 25 kHz

? 12.5 kHz

Edge separation a

? 0.080 µs

? 0.175 µs

? 0.370 µs

? 0.080 µs

? 0.175 µs

? 0.370 µs

? 0.040 µs

? 0.080 µs

? 0.175 µs

? 0.040 µs

? 0.080 µs

? 0.175 µs

? 0.040 µs

? 0.080 µs

? 0.175 µs

Traversing speed1)

? 240 m/min

? 120 m/min

? 60 m/min

? 30 m/min

? 60 m/min

? 30 m/min

? 15 m/min

? 60 m/min

? 30 m/min

? 15 m/min

? 24 m/min

? 12 m/min

? 6 m/min

? 12 m/min

? 6 m/min

? 3 m/min

Interpolation error

RMS position noise

±12 nm

0.6 nm (1 MHz2))

Electrical connection*

Cable, 0.5 m/1 m/3 m, with 15-pin Sub-D connector (male); interface electronics in the connector

Cable length

See interface description; however,
incremental: ? 30 m; homing, limit: ? 10 m; (with HEIDENHAIN cable)

Supply voltage

DC 5 V ±0.25 V

Current consumption

< 150 mA

< 165 mA (without load)

Vibration 55 Hz to 2000 Hz

Shock 11 ms

? 400 m/s2 (EN 60068-2-6)

? 500 m/s2 (EN 60068-2-27)

Operating temperature

0 °C to 50 °C

Mass Scanning head*

Cable

Connector

For scale made of Zerodur glass ceramic: 25 g

For scale made of glass: 9 g

38 g/m

75 g

* Please select when ordering

1) With TTL: maximum traversing speed during referencing: 9.6 m/min (40 kHz)

2) –3 dB cutoff frequency of the subsequent electronics