features 3.3 and 5 vdc voltage supply option pwm absolute position bushing or servo mount non-contacting magnetic technology small size cmos and ttl compatible resolution: 1024 states long life high operating speed highly repeatable sealed option magnetic technology ems22p - non-contacting pwm 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 states 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 pwm pwm signal gnd gnd gnd 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. ems22p - non-contacting pwm 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 pwm r1 c1 c2 r2 analog out simple passive 2nd order low pass filter r1, r2 4.7k ohms r1 should be 4.7k ohms to avoid loading of the pwm output. larger values of rx and cx will provide better filtering and less ripple, but will also slow down the response time. c1, c2 1 f / 6 v recommended filter vss pwm output parameter symbol type unit note pwm frequency fpwm 0.9756 khz signal period: 1025 s min pulse with pwmin 1 s position 0 angle 0 max pulse with pwmax 1024 s position 1023 angle 359.65 analog output using an external low pass filter vcc 0 v 0 360 0 deg (pos 0) 359.65 deg (pos 1023) 1 512 0 1025 1025 pw max t on t off pw min 1/f pwm position = t on * 1025/(t on + t off) - 1 angle
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. 9.53 (.375) 20.88 .25 (.822 .010) 13.89 .38 (.547 .015) 15.88 .25 (.625 .010) 1.57 0.12 (.062 .005) .51 .03 (.020 .001) 2.01 (.079) 5 plcs. 6 plcs. 6 plcs. 4.00 (.157) 2.79 (.110) .51 .03 (.020 .001) dia. 10.29 0.12 (.405 .005) dia. 21.21 .25 (.835 .010) 3.17 +.00/-.01 (.1247 +.0000/-.0003) 9.53 (.375) 20.88 .25 (.822 .010) 1.57 0.12 (.062 .005) 13.89 .38 (.547 .015) 4.00 (.157) 10.29 (.405) dia. 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) ems22p - non-contacting pwm encoder dimensional drawings dimensions: mm (inches) 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) shaft style d (bushing w) speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications.
bourns ems22 22 mm non-contacting pwm encoder ems22p50-b28-ls6 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 terminal configuration** code l m w description axial, multi- purpose pin rear ribbons cable with connector rear ribbons cable - no connector 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 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: (p) t on increases from 1 to 1025 with cw rotation of the shaft. note 2: (r) t on increases from 1 to 1025 with ccw rotation of the shaft. index channel code 0 description no index resolution code 6 states 1024 output type code p r description cw pwm ccw pwm notes see note 1 see note 2 ems22p - non-contacting pwm encoder 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. product dimensions 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 dimensions: mm (inches)
|
