Exposed Linear Encoders - DR. JOHANNES HEIDENHAIN GmbH - #29

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29 Specifi cations LIP 581 LIP 571 Measuring standard Coeffi cient of linear expansion DIADUR phase grating on glass Þtherm .. 8 · 10–6 K–1 Accuracy grade* ± 1 ìm Measuring length ML* in mm 70 120 170 220 270 320 370 420 470 520 570 620 670 720 770 820 870 920 970 1 020 1 240 1 440 Reference marks* LIP 5x1 R LIP 5x1 C One at midpoint of measuring length Distance-coded Incremental signals » 1 VPP « TTL Grating period 8 ìm Integrated interpolation* Signal period – 4 ìm 5-fold 0.8 ìm 10-fold 0.4 ìm Cutoff frequency –3dB ‡ 300 kHz – Scanning frequency* Edge separation a – † 200 kHz ‡ 0.220 ìs † 100 kHz ‡ 0.465 ìs † 50 kHz ‡ 0.950 ìs † 100 kHz ‡ 0.220 ìs † 50 kHz ‡ 0.465 ìs † 25 kHz ‡ 0.950 ìs Traversing speed † 72 m/min † 48 m/min † 24 m/min † 12 m/min † 24 m/min † 12 m/min † 6 m/min Power supply Current consumption DC 5 V ± 5 % < 175 mA DC 5 V ± 5 % < 175 mA (without load) Electrical connection* Cable length Cable 0.5 m, 1 m, 2 m or 3 m with D-sub connector (15-pin), interface electronics in the connector † 30 m (with HEIDENHAIN cable) Vibration 55 to 2 000 Hz Shock 11 ms † 200 m/s2 (EN 60 068-2-6) † 500 m/s2 (EN 60 068-2-27) Operating temperature 0 °C to 50 °C Weight Scanning head Scale Connecting cable Connector 25 g (without connecting cable) 7.5 g + 0.25 g/mm measuring length 38 g/m 140 g * Please select when ordering