Selection guide for LIDA: LIDA 475/485

Specifications

Linear scale	LIDA 405
Measuring standard Coefficient of linear expansion	Steel scale tape with METALLUR scale grating; grating period 20 µm Depends on the mounting surface
Accuracy grade	±5 µm
Baseline error	≤ ±0.750 µm/50 mm (typical)
Measuring length ML* in mm	140 240 340 440 540 640 740 840 940 1040 1140 1240 1340 1440 1540 1640 1740 1840 1940 2040
Measuring length ML* in mm	Larger measuring lengths up to 30 040 mm with a single-section scale tape and individual scale-carrier sections
Reference marks	One at midpoint of measuring length
Mass	115 g + 0.25 g/mm measuring length

Scanning head	LIDA 48	LIDA 47
Interface	1 VPP	 TTL
Integrated interpolation* Signal period	– 20 µm	5-fold 4 µm	10-fold 2 µm	50-fold 0.4 µm	100-fold 0.2 µm
Cutoff frequency –3 dB	≥ 500 kHz	–
Scanning frequency*	–	≤ 400 kHz ≤ 200 kHz ≤ 100 kHz ≤ 50 kHz	≤ 200 kHz ≤ 100 kHz ≤ 50 kHz ≤ 25 kHz	≤ 50 kHz ≤ 25 kHz ≤ 12.5 kHz	≤ 25 kHz ≤ 12.5 kHz ≤ 6.25 kHz
Edge separation a1)	–	≥ 0.100 µs ≥ 0.220 µs ≥ 0.465 µs ≥ 0.950 µs	≥ 0.100 µs ≥ 0.220 µs ≥ 0.465 µs ≥ 0.950 µs	≥ 0.080 µs ≥ 0.175 µs ≥ 0.370 µs	≥ 0.080 µs ≥ 0.175 µs ≥ 0.370 µs
Traversing speed1)	≤ 600 m/min	≤ 480 m/min ≤ 240 m/min ≤ 120 m/min ≤ 60 m/min	≤ 240 m/min ≤ 120 m/min ≤ 60 m/min ≤ 30 m/min	≤ 60 m/min ≤ 30 m/min ≤ 15 m/min	≤ 30 m/min ≤ 15 m/min ≤ 7.5 m/min
Interpolation error	±45 nm	–
Limit switches	L1/L2 with two different magnets; output signals: TTL (without line driver)
Electrical connection	Cable, 0.5 m, 1 m or 3 m, with 15-pin D-sub connector (male)
Cable length	See interface description, however limit: ≤ 20 m (with HEIDENHAIN cable)
Voltage supply	DC 5 V ±0.5 V
Current consumption	< 130 mA	< 150 mA (without load)
Vibration 55 Hz to 2000 Hz Shock 6 ms	≤ 500 m/s2 (EN 60 068-2-6) ≤ 1000 m/s2 (EN 60 068-2-27)
Operating temperature	–10 °C to 70 °C
Mass Scanning head Connecting cable Connector	20 g (without cable) 22 g/m 32 g
* Please select when ordering 1) At a corresponding cutoff or scanning frequency