HEIDENHAIN LIF 18 Exposed Linear Encoder

HEIDENHAIN LIF 18 Exposed Linear Encoder

Product Name: HEIDENHAIN LIF 18 Exposed Linear Encoder
Product Brand: HEIDENHAIN
Product Code: LIF 18
Product Artikel: HEIDENHAIN LIF 18 Exposed Linear Encoder
Scale LIF 101 Measuring standard Coefficient of linear expansion SUPRADUR phase grating on Zerodur glass-ceramic or glass; grating period: 8 µm α therm ≈ (0±0.1) x 10 –6 K –1 (Z erodur glass-ceramic ) α therm ≈ 8 x 10 –6 K –1 ( glass ) Accuracy grade ±3 µm; ±1 µm (only in Zerodur and up to a measuring length of 1640 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 1040 1140 1240 1340 1440 1540 1640 1840 2040 2240 2440 2640 2840 3040 3) Reference marks * LIF 101 R LIF 101 C One reference mark at midpoint of measuring length Distance-coded Mass 7.5 g + 0.25 g/mm of measuring length Scanning head LIF 18 LIF 17 Interface   1 V PP TTL Integrated interpolation * Signal period – 4 µm 5-fold 0.8 µm 10-fold 0.4 µm Cutoff frequency –3 dB ≥ 1 MHz – Scanning frequency – ≤ 200 kHz ≤ 100 kHz ≤ 50 kHz ≤ 100 kHz ≤ 50 kHz ≤ 25 kHz Edge separation a – ≥ 0.220 µs ≥ 0.465 µs ≥ 0.950 µs ≥ 0.220 µs ≥ 0.465 µs ≥ 0.950 µs Traversing speed 1) ≤ 240 m/min ≤ 48 m/min ≤ 24 m/min ≤ 12 m/min ≤ 24 m/min ≤ 12 m/min ≤ 6 m/min Interpolation error Position noise RMS ± 12 nm 0.6 nm (1 MHz 2) ) – Electrical connection* Cable, 0.5 m/1 m/3 m, with 15-pin D-sub connector (male); interface electronics in connector Cable length With HEIDENHAIN cable: ≤ 30 m Supply voltage DC 5 V ±5 % DC 5 V ±5 % Current consumption ≤ 165 mA ≤ 170 mA (without load) Vibration 55 Hz to 2000 Hz Shock 6 ms ≤ 200 m/s 2 (IEC 60 068-2-6) ≤ 500 m/s 2 (IEC 60 068-2-27) Operating temperature Storage temperature 0 °C to 50 °C –20 °C to 70 °C Protection EN 60 529 IP 00; scanning head: IP 50 Mass Scanning head Cable Connector 25 g (without cable) 38 g/m 75 g * Please select when ordering 1) Only for TTL: Maximum traversing speed for referencing: 9.6 m/min · (40 kHz) 2) –3 dB cutoff frequency of the subsequent electronics 3) Measuring lengths of up to 6 m upon request

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