Rotary Measuring Technology

Rotary magnetic measurement system

Rotary magnetic measurement system RI20/ LI20

High rotationalspeed High IP Shock/vibra-tion resistant Reverse polarityprotection

Robust Simple installation

• Increased ability to with-stand vibrations and roughinstallation • Fast start-up of the measuring system Easy fixing of the magnetic ring and the sensor head Eliminates machine down-time and repairs High shock and vibration resistance, thanks to non- contact technology. • Easy mounting with large tolerancespossible Distance of sensor head to magnetic ring from 0.1 to 1.0 mm• Tolerates lateral misalignment + 1 mm • Warning signal when magnetic field istoo weak (LED)

RoHS

• Stays sealed even when sub- j jected to harsh everyday use.Offers security against failures in thefield.

Compact

Solid housing with up to IP 67 protection. • Installation depth only 16 mm, width of magnetic ring 10 mm• Large hollow shaft up to 30 mm Can be used even where space is very tight Technical data magnetic sensor Limes LI20: Technical data magnetic ring RI20:

Pole gap: 2 mm from pole to pole Temperature ranges:Working temperature–20 …+80 °CStorage temperature–20 …+80 °C 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 Mounting:Screwed on shaft System accuracy: typ. + Short circuit proof outputs
1) :yesyes
2) 0,3° (at 25 °C, Sensor/Magnetic ring Distance 0,5 mm and Drive shaft tolerance g6 Min. Pulse interval:1 µ s (edge interval) corresp. to 4 µ s/period (see signal figures below) Output signal:A, A, B, B, I, IReference signal:Index periodical Accuracy: System Accuracy:typ. ±0,3 ° with shaft tolerance g6 Repeat accuracy:±1 increment

Signal figures

Admissible Alignment tolerance see draft „Mounting tolerances“ with rotation of the magnetic ring in the CW-direction (see draft „Mounting tolerances”) Gap sensor / magnetic ring:0.1 ... 1.0 mm (recommended 0,4 mm)Offset:max. ±1 mm Tilting:max. 3 °Torsion:max. 3 °

ABA

Environmental conditions: Working temperature:–20 ... +80 °C
89 Shock resistance:30 g/10 ... 2000 Hz Protection class:IP 67 according to DIN 60 529 (housing)

B

Humidity:100 %, condensation possible Housing:Zinc die-cast General data:
9 periodic index signal (every 2mm) the logicalassignment A, B and I-signal can changeMin. Cable:2 m, PUR 8 x 0,14 mm
2 , shielded,may be used in trailing cable installations
8 Pulse interval : pay attention to theinstructions in the technical data Status-LED:Green: Pulse-index; Red: Error, revs too high or magnetic field too weak (for 8.LI20.XXXX.X 020 and 8.LI20.XXXX.X 050 )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)
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.) RoHS compliant acc. to EU guideline 2002/95/EG 14 www.kuebler.com New for 2008