Issue 1, 29 th September 2014 RLC2IC component magnetic encoder with magnetic rings MR050C and MR047B RLC is a PCB level encoder for rotary measurements. With its compact design it is suitable for integration into embedded motion control systems where limited space for encoder is available. The information carrier is a magnetic ring (MR) with a pole length of 2 mm. State-of-the-art position sensing assures highly repeatable position measurement under wide installation tolerances and temperature range. Integrated interpolator allows interpolation up to 13 bits of measuring steps per pole length. dvanced production methods assure minimisation of interpolation error (SDE) to less than 0.2 % of pole length. Position information is output in incremental quadrature format with periodic index impulses. Index periods correspond to pole length of magnetisation. Time between two neighbouring edges of incremental output signals is definible with ordering code and allows optimal adaptation of the measuring system to sub-sequent electronics. Chosen edge separation and resolution provides maximum measuring velocities. t 1 μm resolution and 0.12 μs edge separation this is more than 4 m/s. EM compatibility of RLC should be assured with enclosure system and external components. Miniature dimensions Incremental quadrature differential output signals, B, Z according to RS422 Periodic, bidirectional index impulse Resolution from 0.244 µm for linear High speed operation Cable connection RoHS compliant associate company
RLC dimensions Sensor area increm. side 2 ±0.2 0.6 Max. 1 Sensor area ref. side 7.5 Front side 7 2.54 Ø0.9 4 ±0.2 12 ±0.2 Connections +5 V Z+ Front side Z- B+ B- + - 0 V 1.3 1.3 3.3 ±0.3 Sensor area increm. side Back side Sensor area ref. side 10.3 Mount area Back side 0 V - + B- B+ Z- Z+ +5 V 2.5 2.5 1.5 ±0.2 2.6 0.1 10 44 +0.02 0 47.5 ±0.1 2.6 ±0.2 2 0.1 +0.7 0 22.5 ±0.1 7.5 Mount area RS422 driver RLC installation drawing xial ring application Radial ring application 3.6 5.5 10 ±0.2 40 ±0.02 50 ±0.02 40 ±0.1 R0.3 2
RLC technical specifications System data Pole length vailable interpolations, resolutions and maximum speed 2 mm Unidirectional repeatability < 2 µm Hysteresis Sub divisional error ±3.5 µm Electrical data Power supply Power consumption (without load) Output signals ESD susceptibility of all pins Mechanical data Mass Moment of inertia Environmental conditions Temperature See tables on page 4. < 2 µm up to 0.2 mm ride height 5 V ±0.25 V < 35 m Digital RS422 (+, B+, Z+, -, B-, Z-) High level output voltage (I OH = -20 m) Low level output voltage (I OL = 20 m) Rise and fall time (c c = 50 pf) 2 kv (HBM 100 pf, discharge through 1.5 kω) RLC: 1.25 g; MR050C: 8 g; MR047B: 9 g MR050C 3,880 g/mm 2 MR047B 4,205 g/mm 2 Operating and storage Vibrations (55 Hz to 2000 Hz) 300 m/s 2 (IEC 60068-2-6) Shocks (11 ms) 300 m/s 2 (IEC 60068-2-27) -40 C to +125 C > 2.4 V < 0.4 V < 10 ns Timing diagram Inverted signals not shown. Edge separation (µs) Resolution (µm) B Z associate company 3
Maximum speed and resolution for MR050C xial ring, 72 poles (2 mm pole length) Resolution (cpr) factor Maximum speed (revolutions per minute) 589,824 8,192 423 106 48 25 25 294,912 4,096 840 211 96 50 26 147,456 2,048 1,687 423 192 101 52 144,000 2,000 1,733 433 197 103 53 115,200 1,600 2,167 541 271 129 66 73,728 1,024 3,380 840 385 202 103 72,000 1,000 3,467 867 433 206 106 57,600 800 4,333 1,080 542 258 132 36,864 512 6,767 1,687 650 403 206 36,000 500 6,933 1,733 867 413 211 28,800 400 8,667 2,167 1,080 516 264 23,040 320 10,833 2,707 1,353 645 330 18,432 256 13,540 3,380 1,687 800 413 14,400 200 17,333 4,333 2,167 1,027 528 11,520 160 10,833 2,707 1,353 673 330 9,216 128 27,080 6,767 3,380 1,607 820 7,200 100 17,333 4,333 2,167 1,027 528 5,760 80 10,833 2,707 1,353 673 330 4,608 64 30,558 13,540 6,767 3,220 1,647 2,880 40 10,833 2,707 1,353 645 330 2,304 32 30,558 27,080 13,540 6,447 3,300 1,152 16 na 30,558 27,080 12,893 6,600 576 8 na 30,558 30,558 25,793 13,207 Edge separation (μs) 0.12 0.50 1 2 4 Count frequency (khz) 8333 2000 1000 500 250 Maximum speed and resolution for MR047B Radial ring, 76 poles (2 mm pole length) Resolution (cpr) factor Maximum speed (revolutions per minute) 622,592 8,192 400 100 46 24 24 311,296 4,096 796 200 91 48 24 155,648 2,048 1,598 401 182 95 49 152,000 2,000 1,642 411 187 98 50 121,600 1,600 2,053 513 256 122 63 77,824 1,024 3,202 796 364 191 98 76,000 1,000 3,284 821 411 195 100 60,800 800 4,105 1,023 513 244 125 38,912 512 6,411 1,598 616 382 196 38,000 500 6,568 1,642 821 391 200 30,400 400 8,211 2,053 1,023 489 250 24,320 320 10,263 2,564 1,282 611 313 19,456 256 12,827 3,202 1,598 758 391 15,200 200 16,421 4,105 2,053 973 501 12,160 160 10,263 2,564 1,282 638 313 9,728 128 25,655 6,411 3,202 1,522 777 7,600 100 16,421 4,105 2,053 973 501 6,080 80 10,263 2,564 1,282 638 313 4,864 64 32,166 12,827 6,411 3,051 1,560 3,040 40 10,263 2,564 1,282 611 313 2,432 32 32,166 25,655 12,827 6,107 3,126 1,216 16 na 32,166 25,655 12,215 6,253 608 8 na 32,166 32,166 24,436 12,512 Edge separation (μs) 0.12 0.50 1 2 4 Count frequency (khz) 8333 2000 1000 500 250 associate company 4
RLC readhead part numbering RLC 2 IC 13B 00 C 00 Pole length 2-2 mm pole length Output type IC - Incremental RS422 13B - 8192 12B - 4096 11B - 2048 2D0-2000 1D6-1600 10B - 1024 1D0-1000 D80-800 09B - 512 D50-500 D40-400 D32-320 08B - 256 D20-200 D16-160 07B - 128 D10-100 D08-80 06B - 64 D04-40 05B - 32 04B - 16 03B - 8 00 - No special requirements (standard) Reference - With reference mark B - No reference mark C - Periodic reference mark as per scale pitch (every 2 mm) Minimum edge separation (Frequency) - 0.12 µs (8.3 MHz) B - 0.5 µs (2 MHz) C - 1 µs (1 MHz) D - 2 µs (0.5 MHz) E - 4 µs (0.25 MHz) Magnetic ring part numbering Radial ring 76 poles (2 mm pole length) MR 047 B 040 B 076 B 00 07 - ccuracy better than ±0.1 xial ring MR 050 C 040 B 092 B 00 Number of poles 092-92 poles 090-90 poles 00 - No special requirements 02 - With back-adhesion tape 07 - ccuracy better than ±0.1 Counts per revolution = No. of poles Contact us RLS Merilna tehnika d.o.o. Poslovna cona Žeje pri Komendi Pod vrbami 2 SI-1218 Komenda Slovenia T +386 1 5272 100 F +386 1 5272 129 E mail@rls.si www.rls.si 5