features 3.3 and 5 vdc voltage supply option absolute bushing or servo mount non-contacting magnetic technology small size cmos and ttl compatible resolution: 1024 positions long life high operating speed highly repeatable sealed option magnetic technology ems22a - non-contacting absolute encoder *rohs directive 2002/95/ec jan. 27, 2003 including annex and rohs recast 2011/65/eu june 8, 2011. speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. *rohs compliant electrical characteristics resolution .................................................................................................................... ....................................................................................... 1024 positions insulation resistance (500 vdc) ............................................................................................... .......................................................................1,000 megohms electrical travel ............................................................................................................. ........................................................................................... continuous supply voltage ................................................................................................................ ........................................................5.0 vdc ?0 %, 3.3 vdc ?0 % supply current ................................................................................................................ .................................................................................20 ma maximum output voltage low output level ......................................................................................................... ........................................................................ vss+0.4 v maximum high output level......................................................................................................... .......................................................................... vdd-0.5 v minimum output current with 4.5 vdc supply voltage .............................................................................................. .........................................................................4 ma maximum with 3.0 vdc supply voltage .............................................................................................. .........................................................................2 ma maximum rise/fall time (incremental output) ........................................................................................... .................................................................... 500 ns maximum shaft rpm (ball bearing) ...................................................................................................... ...................................................................10,000 rpm maximum linearity ..................................................................................................................... .........................................................................................................0.5 % accuracy nominal .................................................................................................................. ........................................................................................?.7 ?or better worst case ............................................................................................................... .................................................................................................... ?.4 output transition noise ....................................................................................................... ............................................................................ 0.12 ?rms max. environmental characteristics operating temperature range ............................................................................................................................... ......... -40 ? to +125 ? (-40 ? to +257 ?) storage temperature range ..................................................................................................... ...................................... -55 ? to +125 ? (-67 ? to +257 ?) humidity ...................................................................................................................... ..............................................mil-std-202, method 103b, condition b vibration ..................................................................................................................... ......................................................................................................... 15 g shock ......................................................................................................................... ......................................................................................................... 50 g rotational life s bushing (@1,000 rpm) ............................................................................................................................... .................................. 100,000,000 revolutions t & w bushings (@1,000 rpm with 250 g side load) ......................................................................... ............................................... 50,000,000 revolutions ip rating ..................................................................................................................... ........................................................................................................ ip 65 mechanical characteristics mechanical angle .............................................................................................................. .............................................................................. 360 ?continuous torque starting ................................................................................................................. ................................................................... 43 ?1 g-cm (0.6 ?.3 oz-in.) running .................................................................................................................. ................................................................. 29 ?4 g-cm (0.4 ?.2 oz-in.) mounting torque ............................................................................................................................... ..........................................................203 n-cm (18 lb.-in.) shaft end play ............................................................................................................................... .......................................0.30 mm (0.012 ? t.i.r. maximum shaft radial play ............................................................................................................. .....................................................0.12 mm (0.005 ? t.i.r. maximum weight ........................................................................................................................ ......................................................................................11 gms. (0.4 oz.) terminals ..................................................................................................................... .................................................................... axial, radial or ribbon cable soldering condition manual soldering ......................................................................................................... ........... 96.5sn/3.0ag/0.5cu solid wire or no-clean rosin cored wire 370 ? (700 ?) max. for 3 seconds wave soldering ........................................................................................................... .................................. 96.5sn/3.0ag/0.5cu solder with no-clean ux 260 ? (500 ?) max. for 10 seconds wash processes ........................................................................................................... ............................................................................ not recommended marking ............................................................................................................................... ..... manufacturer? trademark, name, part number, and date code. hardware ....................................................................one lockwasher and one mounting nut supplied with each encoder, except on servo mount versions. pin con guration output type pin 1 pin 2 pin 3 pin 4 pin 5 pin 6 absolute digital input clock gnd digital output vcc* cs** * can be 5 or 3.3 vdc depending on the version. ** active low chip select pin; if not used connect pin 6 to gnd.
speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. ems22a - non-contacting absolute encoder output type waveform and variant table applications material handling equipment brushless dc motor commutation robotics automotive industrial automation petroleum re nery medical of ce equipment audio and broadcast equipment csn clk d0 t csn 500 ns min. t clkfe 500 ns t d0 tristate 100 ns min. t clk/2 500 ns 0 15 07 status bits angular position data parity bit t d0 valid 375 ns t d0 active 100 ns d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 s1 s2 s3 s4 s5 p1 d9 ems22 c 1st device data in prog do prog do prog do clk csn clk csn clk daisy chain hardware configuration daisy chain mode data transfer clk csn csn 2nd device last device ems22 ems22 d6 d7 d9 csn clk fe t do active t 18 16d123 clk/2 t clk do angular position data d8 d5 d1 d2 d4 d3 d0 even par mag dec mag inc lin cof ocf d9 d8 d7 do valid t angular position data status bits 2nd device 1st device data content description d9:d0 absolute angular position data s1 end of offset compensation algorithm s2 cordic over ow indicating an error in cordic part s3 linearity alarm s4 increase in magnitude s5 decrease in magnitude p1 even parity for detecting bits 1-15 transmission error absolute output
9.53 (.375) 20.88 .25 (.822 .010) 9.53 (.375) 20.88 .25 (.822 .010) 13.89 .38 (.547 .015) 15.88 .25 (.625 .010) 1.57 0.12 (.062 .005) 1.57 0.12 (.062 .005) 13.89 .38 (.547 .015) .51 .03 (.020 .001) 2.01 (.079) 5 plcs. 6 plcs. 6 plcs. 4.00 (.157) 4.00 (.157) 2.79 (.110) .51 .03 (.020 .001) dia. 10.29 0.12 (.405 .005) dia. 10.29 (.405) dia. 21.21 .25 (.835 .010) ar lug 1.18 .012 (.047 .005) r 0.66 .012 (.026 .005) high (fms) x 3.17 +.00/-.01 (.1247 +.0000/-.0003) dia. 6.34 (0.249) 15.88 .25 (.625 .010) .51 .03 (.020 .001) 2.01 (.079) 5 plcs. 6 plcs. 6 plcs. 2.79 (.110) .51 .03 (.020 .001) 21.21 .25 (.835 .010) 7.95 .012 (.313 .005) 7.94 .012 (.313 .005) 3.18 0.12 (.125 .005) dia. panel layout 10.67 0.12 (.420 .005) dia. ar lug 1.18 .012 (.047 .005) r 0.66 .012 (.026 .005) high (fms) x 7.95 .012 (.313 .005) 7.94 .012 (.313 .005) 3.18 0.12 (.125 .005) dia. panel layout 10.67 0.12 (.420 .005) dia. ems22a - non-contacting absolute encoder product dimensions consult factory for options not shown, including: ? wire lead or cable options ? special shaft/bushing sizes and features ? connectors ? special performance characteristics ? non-standard resolutions ? pcb mounting bracket shaft style d (bushing t) shaft style b (bushing s) speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. dimensions: mm (inches)
9.53 (.375) 22.23 .25 (.875 .010) 13.89 .38 (.547 .015) 1.57 (.062) 1.57 (.062) 1.57 (.062) 4.00 (.157) 15.88 .25 (.625 .010) .51 .03 (.020 .001) 2.01 (.079) 5 plcs. 6 plcs. 6 plcs. 2.74 (.108) .51 .03 (.020 .001) 21.21 .25 (.835 .010) 19.05 (.75) dia. dia. 3.17 +.00/-.01 (.1247 +.0000/-.0003) 22.23 (.875) dia. ems22a - non-contacting absolute encoder speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. product dimensions shaft style d (bushing w) dimensions: mm (inches) cable assembly 25.4 (1.0) max. 2 plcs. 254.0 ?6.35 (10.00 ?0.25) circuit #1 13.97 (0.55) 2 plcs. circuit #1 pin 1 identification stripe connector 2.00 mm pitch, 6 circuits 2 plcs. flat cable 2.0 mm pitch round conductor 24 awg (7x32) stranded, top coat 6 circuits, p.v.c. insulation
bourns ems22 22 mm non-contacting absolute encoder ems22a50-b28-ls 6 shaft length designator* code 16 20 28 25 description 1/2 " long 5/8 " long 7/8 " long 25 mm long (available with d bushing only) voltage supply code 3 5 description 3.3 vdc 5 vdc output type code a b description cw absolute ccw absolute notes see note 1 below see note 2 below terminal configuration** code l m w description axial, multi- purpose pin rear ribbons cable with connector rear ribbons cable - no connector resolution code 6 states 1024 shaft style code b c d r m available with bushings (code) s s t, w d d description 1/4 " dia., plain end 1/4 " dia., flatted end 1/8 " dia., plain end 6 mm dia., slotted end 6 mm dia., flatted end index channel code 0 description no index bushing designator code s t w d description 3/8 " d x 3/8 " l threaded (single ball bearing) 3/8 " d x 3/8 " l threaded (dual ball bearing) servo mount 7/8 " d (dual ball bearing) 9 mm d x 7.94 mm l threaded (single ball bearing) * shaft length measured from mounting surface. ** standard ribbon cable is 10 inches long. consult factory for other lengths. note 1: (a) positions increase from 0 to 1024 with cw rotation of the shaft. note 2: (b) positions increase from 0 to 1024 with ccw rotation of the shaft. how to order rev. 07/12 speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications ems22a - non-contacting absolute encoder
|
