OPTICAL INCREMENTAL ENCODERS m Two channel quadrature output m Bushing or servo mount a Square wave signal a Index channel available mw Smail size a Resolution to 256PPR m CMOS and TTL compatible m Long life m High operating speed Rotary Optical Encoders Bourns? Optical Encoders Electrical Characteristics OUtDUt oo ccc eee ceeeeeeeette cette cneesetnenenea 2-bit gray code, Channel A leads Channel B by 90 (electrical) with clockwise rotation SUPPHY VONAGE oo. ce ee ceccccseesstecencerseeesscnceseceenessnecenacesesesceesecsaeeceaaeesepaaeecenecaineeeceneseeeecitassesesdesieneaesersineneens 5.0 VDC +0.25 VDC" SUPPly CUITENt ..... cece eccceseeeeeneeceneesneeeceneecaeacsetecseasneeassaeecaanaeeseneusatecaeacseassasesscduecesesadsaseedaseredsesesecadeeseseneneeeses 26 MA maximum Output Voltage LOW OUTPUT 0. ccecccceseceeesesseetesnsseeseaceaeeseneeenesaeeecesaeeesecaeeeescsecsacsesesscenssaeeessueteueeeeseeucasesusgececececsicaeeeeeieeecestiaeseneess 0.8V maximum HIGH OQUtpUt oo. eee ccc ceeneceeneeeeneeeteaseseeesateccaseeseesseeenceeesocneeeeesereneseaeaeesaeeeeasneeeeeecanseeeerecseessereenaaseeeeseaedepieaseseaneenea 4V minimum Output Current LOW QUTDUt ooo. cccccceccceeceecscnneeecescecececssssneaseesessessssseseeesaevagensesueaeeseusesussacesesseesacetesssseesaetseaseesausdeesseseuensessueeesents 25mA minimum Insulation Resistance (500 VDC) ccc csseceseeseeserseseccerseraeeeeseddecneereeeseeeeseseunnasesseensseceeesessasdasseeesanecesdaseseesenseceee 1,000 megohms Ris@/Fall Time... ccceesecssececsseeeesneceereessnaceenacerancesenesassenesvesesecuanusgssasessecsessaeacenssasanaeadeseseneevsaesaeereceerescesesesenseccaseesanenes 200ns (typical) Shaft RPM (Ball Bearing) 3,000 rpm maximum Power COmSumotion ........ccsccsscsssereccessesceesevseneessessescessecesseseetsssseeaseeeseenanneeesessassuaussescesecsecnesesteauessaeeeseaeaueategesens 136 mW maximum Pulse Width (Electrical Degrees, Each Channel) ...........cccessccccssssccecsesneecsneceerececusenssneeaatesssartesusecaaaeecceestaeeesesaerseseaees 180 +45 TYP. Pulse Width (Index Channel) oo... ccccseccsesasecssssecsccesesseseceesansaseensseesenenases Phase (Electrical Degrees, Channel A to Channel 8) Index Channel Centered on 1-1 State Combination of A and B Channels... eccceseeeeecesenenaatecaceseeenssaneeesaeneasnereeeecenees 0 +45 *Consult factory for other voltages up to 15 VDC. Environmental Characteristics Operating Temperature Range (Standard) ......c eee Neca neeceeeceeceetenseeseeeaneeeaeeseneaasanseueseeceeeeeneeateaseeeeteeeeeeaseeeeetan -40C ta +85C Vibration Shock ......... Humidity Mechanical Characteristics Torque (Starting and Running) A&C Bushings (Spring Loaded for Optimum Feel) 0... ecccceescsesecsesseeeaeseeessacseecscsaesensaessaecaeseecsaseeecesseonses 1.5 az-in. maximum W,S & T Bushings (Ball Bearing Shaft Support) oo... ee eee sseceeeetenneseeeenenceaeeesecaseeeeesseuaestaesensasasaaeesaeas 0.1 oz-in. maximum Mechanical Rotation .........ccesescsscsssesssscssssesccsssscesseeessseveneessensasesenarensecsscessesessesesusasscenenssessesssesnaceseeraseseanestataceessusseeusess Continuous Shaft End Play oe cceesesseseesecessscsaceesaaessessecsecsaseeeesetscaersenseseeseessescsseseceeseataneaaseeesesaseceneneeetssseteeseenenerene 0.012" T.1LR. maximum Shaft Radial Play 20.0... cc cescnssscescenaeeessescaseescssensesssssuscasecseeessesesseesesessenuasagenssagsescaesaeegeatenscsseeseeeersenseneeas 0.005" T.1.R. maximum Rotational Life A&G Bushings (300 rpm MaXxiMUrT) oo... ccccsescccccsnecuverssccceravncsscsessutecessceseesssesscaaascessaecensesueuecsarenseesesees 10,000,000 revolutions W, S &T Bushings (3,000 rom maximum) 200,000,000 revolutions WIGHT 2... eeccccececccsssssecssasensusecssucsuserseeeecssasuscetausesevesaccesserssestcssavscseascssucaseeuasstcecseneesausacedsrsesssesscerssesussecsaasesssseaseetsansasenanseasees 0.4 oz. For resolutions $ 128 quadrature cycles per shaft revolution. QUTPUT TABLE : STANDARD RESOLUTIONS QUTPUT VOLTAGE AVAILABLE I 1 Channel A > 4.0V (Min) ~~ | | ~ ~TaTd (Full quadrature output cycles per 0.8 (Max) ~ ~ --- 90 shaft revolution) . 0.8V (Max)~ _- ~- $0 200 Index 4.0V lin _ | ~ eee , 64 256 Channel > a fF 100 (Optional) 0.8 (Max)~ ~ ~ i --9 For Non-Standard Resolutions 1 cycle Consult Factary 360 + 90 / * Ghannel B leads Channel A Clock rotation . . . 429 Specifications are subject ta change without notice. nencntohe iliesDIGITAL CONTACTING The Digital Contacting Encoder is commonly referred to by such conversion The two (2) channel gray coded signal of this incremental names as Digital Panel Control, Bit Switch, Gray Switch and Digital encoder allows the user's decoder circuit to sense analog direction of Switch. All such names are synonymous with a device whose output rotation, as weil as up-down counter capabilities ... all without the time is a digttal gray code signal, rather than a conventional potentiometric and cost required for A/D conversion. This approach can reduce voltage ratio output. memory overhead, wiring and wiring interconnects, and can provide greater MPU program speed. The advantage of the Digital Contacting Encoder is that it permits the direct entry of digitized analog data into a digital circuit without A/D Rotary Optical Encoders Bourns Optical Encoders Qptional Radial Leads 3 2350 + 825 Z {18.5} {6.31} (15.88) r ; 093 | Be L Hg Lee , . . oo - . AT Ty (20.2n 114-32 UNEF me 2 | [ [Las (8.13) 11247 + 0000/ = 0003. 545 asa (9.5) (3.167 + .0000/ - 0076) ~* (1.37) Bushing Style C .2497 + O000/ - 0003 ola .4062 + .0000/ - 0020 Dia 281 + .000/ ~ 002 OA. = (6.342 + 0000/ - 0076) (10.32 + .0000/ - .0508} {7.14 .O00/ ~ 0508) ~~ 375 75 8-32 UNEF Ties 7 18.53) 4 t 062 062 375 | j (1.57) \ << (1 $7) | | asa Lyg.32 UNet - Lyja.32 une? | 12497 + .0000/ 000314 1247 = 0000/ ~ 0003 _ 5.4 (6.342 + .0000/ -.0078) * (1.167 0000/ - 0676) Bushing Style A Bushing Style S Bushing Style T (Ball Bearing) (Ball Bearing) 5 062 } TERMINATION DIAGRAM Silene seme hs; a $7) 062 a6 msn iyi 062 2472.0000 - 0003 CHANNEL A 7 Al ; Ta, 13.167 + 0000. - GGT4, GROUND NC Vee CHANNEL 8 ara ya [iby 3) Opteanai Radial Leads 7500s 0005. | a SN a eos. oar 875 = 0005 - 0050 te 2 = O127 - 12701 Servo Mount Style W (Ball Bearing) Oa Consult factary for options not shown, including: Wire lead or cable aptions *Connectors Non-standard resolutions ; Special shaft/bushing sizes and features * Special performance characteristics 3 PCS mounting bracket Specifications are subject to change withaut notice. BOURNS EN SERIES OPTICAL ENCODER EINIC) 71 J+D/2j;8PlLjo]oli;2ia ANTI-ROTATION LUG POSITION SHAFT LENGTH* SWITCHING CONFIGURATION TERMINAL CONFIGURATION Leads Channal 8 Sy 90 (Clockwise Pin Switching With index Channel Purpose Pin Revolution SHAFT Description BUSHING CONFIGURATION * Shatt length measured from mounting surface. 25 and 50 ppr is reversed (channal 6 leads channet A) ="S/T/W bushing anly 183