Specifications
LS 487
LS 477
Measuring standard
Coefficient of linear expansion
Glass scale with DIADUR grating, grating period 20 µm
?therm 8 x 10–6 K–1 (mounting type I/II); with mounting spar: ?therm 9 x 10–6 K–1 (mounting type III)
Accuracy grade*
±5 µm; ±3 µm
Measuring length ML* in mm
Mounting spar* up to ML 1240 optional, necessary as of ML 1340
70 120 170 220 270 320 370 420 470 520 570 620 670 720
770 820 920 1020 1140 1240 1340 1440 1540 1640 1740 1840 2040
Reference marks* LS 4x7
LS 4x7 C
• Selectable with magnets every 50 mm• One reference mark at midpoint of measuring length• Two reference marks, each 35 mm (for ML ? 1 020 mm) or 45 mm (for ML ? 1 140 mm) from the beginning and end of the measuring length
Distance-coded
Interface
1 VPP
? TTL
Integrated interpolation*
Signal period
–
20 µm
5-fold
–
10-fold
–
20-fold
–
Diagnostics interface
Analog
–
Cutoff frequency –3 dB
? 160 kHz
–
–
–
Scanning frequency*
Edge separation a
–
100 kHz
? 0.5 µs
50 kHz
? 1 µs
100 kHz
? 0.25 µs
50 kHz
? 0.5 µs
25 kHz
? 1 µs
50 kHz
? 0.25 µs
25 kHz
? 0.5 µs
Measuring step
Depends on interpolation
1 µm1)
0.5 µm1)
0.25 µm1)
Electrical connection
Separate adapter cable (1 m/3 m/6 m/9 m) connectible to mounting block
Cable length2)
? 150 m
? 100 m
Voltage supply
without load
DC 5 V ±0.25 V/< 120 mA
DC 5 V ±0.25 V/< 140 mA
Traversing speed
? 120 m/min
? 120 m/min
? 60 m/min
? 120 m/min
? 60 m/min
? 30 m/min
? 60 m/min
? 30 m/min
Required moving force
? 5 N
Vibration 55 Hz to 2000 Hz
Shock 11 ms
Acceleration
Without mounting spar: ? 100 m/s2 (EN 60 068-2-6)
With mounting spar, cable outlet at right: ? 200 m/s2, links: 100 m/s2 (EN 60 068-2-6)
? 300 m/s2 (EN 60 068-2-27)
? 100 m/s2 in measuring direction
Operating temperature
0 °C to 50 °C
Protection EN 60 529
IP53 when installed according to mounting instructions and information;
IP64 with compressed air from DA 400
Mass
0.4 kg + 0.5 kg/m measuring length
* Please select when ordering
1) After 4-fold evaluation in the subsequent electronics
2) With HEIDENHAIN cable
