features 3.3 and 5 vdc voltage supply option quadrature output bushing or servo mount non-contacting magnetic technology small size cmos and ttl compatible resolution from 32-256 ppr long life high operating speed highly repeatable sealed option magnetic technology ems22q - non-contacting incremental 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 .................................................................................................................... ....................................................................................... 32 to 256 ppr 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 hysteresis ............................................................................................................................... ............................................................................................. 0.7 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 a/b quadrature a b gnd index 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.
quadrature output ppr 3.3 vcc 5.0 vcc index 1 index 3 256 xx 256 xx 256 xx 256 xx 128 xx 128 xx 128 xx 128 xx 64 xx 64 xx 64 xx 64 xx 32 xx 32 xx 32 xx 32 xx a b z index 3 = 3 lsb 360 ppr = 1 cycle index 1 = 1 lsb edge separation speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. ems22q - non-contacting incremental 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 minimum edge separation = 20*256/ppr (no missing pulses) microprocessor chip select hardware sample encoder 1 a b a cs1 b
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) 9.53 (.375) 20.88 .25 (.822 .010) 22.23 .25 (.875 .010) 1.57 0.12 (.062 .005) 13.89 .38 (.547 .015) 13.89 .38 (.547 .015) 1.57 (.062) 1.57 (.062) 1.57 (.062) 4.00 (.157) 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) 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. ems22q - non-contacting incremental 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 incremental encoder ems22q51-b28-ls4 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 q description quadrature 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. index channel code 1 3 description 1 lsb 3 lsb resolution code 1 2 3 4 ppr 32 64 128 256 ems22q - non-contacting incremental 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)
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