HEIDENHAIN LF 485 Sealed L?near Encoder

Specifications

LF 485

Measuring standard

Coefficient of linear expansion

SUPRADUR phase grating on steel, grating period 8 µm

?therm  10 x 10–6 K–1

Accuracy grade*

±5 µm; ±3 µm

Measuring length ML* in mm

Mounting spar* optional

50 100 150 200 250 300 350 400 450 500 550 600 650 700
750 800 900 1000 1120 1220

Interface

  1 VPP

Signal period

4 µm

Reference marks* LF 485

LF 485 C

• 1 reference mark at midpoint of measuring length • 2 reference marks, each 25 mm (for ML ? 1000 mm) or 35 mm (for ML ? 1120 mm) from the beginning and end of the measuring length

Distance-coded

Diagnostics interface

Analog

Cutoff frequency –3 dB

? 250 kHz

Electrical connection

Separate adapter cable (1 m/3 m/6 m/9 m) connectible to mounting block

Cable length

? 150 m (with HEIDENHAIN cable)

Voltage supply
without load

DC 5 V ±0.25 V/< 150 mA

Traversing speed

? 60 m/min (max. acceleration in measuring direction ? 100 m/s2)

Required moving force

? 4 N

Vibration 55 Hz to 2000 Hz
affecting the

Shock 11 ms

Housing with mounting spar: ? 150 m/s2 (EN 60 068-2-6)

Scanning unit: ? 200 m/s2 (EN 60 068-2-6)

? 300 m/s2 (EN 60 068-2-27)

Operating temperature

0 °C to 50 °C

Protection EN 60 529

IP53 when installed according to instructions in the brochure

IP64 with sealing air via DA 400

Mass

0.4 kg + 0.6 kg/m measuring length

* Please select when ordering