Linear Measuring Technology

Linear magnetic measurement system

Linear magnetic measurement system Limes LI50/B2

-20 ... +80 °C High IPShock/vibra-tion resistantReverse polarityprotection Temperaturerange

Robust Simple installation

• Increased ability to with-stand vibrations and roughinstallation • Fast start-up of the measuring system Easy fixing of the magnetic band and the sensor head Eliminates machine down-time and repairsHigh shock and vibrationresistance, thanks to non- contact technology. • Easy mounting with large tolerancespossible Distance of sensor head to magnetic band from 0.1 to 2.0 mm Tolerates lateral misalignment + 1 mm Warning signal when magnetic field is too weak (LED) • Stays sealed even when subj e ect-ed to harsh everyday use. Offerssecurity against failures in the field.

Compact

Solid housing with up to IP 67 protection. • Installation depth only 10 mm, width of magnetic band 10 mm• Installation height only 28 mm Can be used even where space is very tight Technical data magnetic sensor Limes LI50: Function principle: Signal figures

Output circuit: Push-PullRS422Supply voltage:4,8 ... 30 V DC4,8 ... 26 V DC Load/channel, max cable length:±20 mA, max. 30 m120 Ohm, RS422 standard Current consumption (without load):typ. 25 mA, max. 60 mA Short circuit proof outputs
1) :yesyes
2) Min. Pulse interval:1 µ s (edge interval) corresponds to4 µ s/cycle (see signal figures below) Output signal:A, A, B, B, I, IReference signal:Index periodical System Accuracy:typ. + 200 µm ± (0.06 + 0.04 x L) mm, (L [m] up to L = max. 50 m, at T = 20 °C)Repeat accuracy:±1 increment Resolution and speed
3) :25 µm (
quadruple ), max. 16.25 m/s

ABA

5 µm (
quadruple ), max. 3.25 m/s Permissible alignment tolerance see draft "Mounting tolerances"Gap sensor / magnetic band:0.1 ... 2.0 mm (1.0 mm recommended)) Offset:max. ±1 mm Tilting:max. 3 °
89

B

Torsion:max. 3 ° Working temperature:–20 ... +80 °C Shock resistance:500g/1 ms Vibration strength:30 g/10 ... 2000 Hz
9 periodic index signal (every 2 mm)The logical assignment A, B and I-Signal canchangeMin. Pulse interval: pay attention to theinstructions in the technical data Protection class:IP 67 according to DIN 60 529 (housing) Humidity:100 %, condensation possible
8 Housing:Zinc die-cast Cable:2 m, PUR 8 x 0,14 mm
2 , shielded, may be used in trailing cable installations
1)With supply voltage correctly applied2)A max. of one channel only may be short-circuited:(when UB=5 V, a short circuit to another channel, 0 V, or +UB is permissible.) (when UB=5-30 V, a short circuit to another channel or to 0 V is permissible.)3) At the listed rotational speed the min. pulse interval is 1 µs, thiscorresponds to 250 kHz. For the max. rotational speed range a counter with a count input frequency of not less then 250 kHz. should be provided. Status-LED:Green: Pulse-index; Red: Error Speed too high or magnetic fields too weak (for sensors 8.LI50.XXXX.X 050 and 8.LI50.XXXX.X 250 )CE-compliant according to:EN 61 000-6-1, EN 61 000-6-4, EN 61 000-6-3EN 61 000-4-8 (magnetic field) RoHS compliant acc. to EU guideline 2002/95/EG 38 www.kuebler.com New for 2008