Model EX-20 series - Miniature Photoelectric Sensors- Brochure

EX-20Ultra-compact Photoelectric SensorMiniature-sized andstill mountable withM3 screws212SERIESUL Recognition(Excluding 5 m cable length type)Conforming toEMC DirectiveAmplifier Built-inMiniaturization by using single chip optical ICThe beam-receiving photodiode and theA/D conversion circuit have beenfabricated on a single chip optical IC (fullcustom). Hence, in spite of its miniaturesize, it has a performance and reliabilitywhich is equal to or better than theconventional product.0.413 in 0.323 in10.5 mm 8.2 mm19 mm0.748 inLong sensing rangeThe EX-20 series achieves long distancesensing [thru-beam type: 2 m 6.562 ft, retro-reflective type: 200 mm 7.874 in (when usingthe attached reflector), diffuse reflectivetype: 160 mm 6.299 in], despite its miniaturesize.Hence, it is usable even on a wide conveyor.2 m 6.562 ftThru-beam typeEX-28EX-26200 mm7.874 inRetroreflective type160 mm6.299 inDiffuse reflective typeClear beam spot using red LED dot light sourceThe emission area of a dot light source issmaller than that of a conventional LEDflat light source, and it is possible todesign a high power, narrow beam. Sincea red LED dot light source is used, the redbeam spot is clear even at a far place, sothat alignment and confirmation of sensingposition is easy. Further, since the thru-beam type, too, incorporates a visiblenarrow beam, it can also reliably detectsmall parts, such as, chip components,lead frames, etc.Setting distance: 10 mm0.394 inSettingdistance:80 mm3.150 in5 mm0.197 inspotspot""1 mm0.039 in ""Incorporates a sensitivity adjuster even in this sizeThe sensor incorporates a sensitivityadjuster in spite of its miniature size. It isconvenient when you need fineadjustment. Further, the receiver of thethru-beam, side sensing type sensorincorporates an operation mode switchwhich can change the output operation.Bright 2-color indicatorA bright 2-color indicator (orange, greenLED) has been incorporated in all types.WaterproofThe sensor can be hosed down becauseof its IP67 construction. Fur ther, thesensor mounting bracket is also made ofstainless steel.Note: However, take care that if it is exposed towater splashes during operation, it maydetect a water drop itself.Globally usablePNP output type, which is much indemand in Europe, is also available.Of course, it conforms to the EMCDirective and approved UL Recognition(excluding 5 m 16.404 ft cable lengthtype).213EX-20APPLICATIONSMounting spacerDetecting chip components Checking protrusion of wafer Sensing objects from an openingTwo types for suitable mountingTwo types, side sensing type and frontsensing type sensors are available. Selectdepending on the place of mounting.Side sensing type Front sensing typeIdentical sizeFront sensing type of thru-beam typeand diffuse reflective type sensorshave identical appearance. Moreover,since the mounting holes aresymmetrical with respect to the beamaxis center, the design becomes easy.Thru-beam type Diffuse reflective type10 mm0.394 in10 mm0.394 inMounting spacer for front sensing type is availableMounting of thefront sensing typeis possible fromthe rear side byusing the mount-ing spacer.Metal insertsMountable withM3 screwMounting section reinforcedIt can be tightened with M3 screws.Moreover, metal inser ts have beenprovided in the mounting holes so that theproduct is not damaged even in case ofexcess tightening.Side sensing type Front sensing typeSlit mask is available"0.5 mm "0.020 in round slit mask and0.5?3 mm 0.020?0.118 in rectangularslit mask are available for both sidesensing type and front sensing typesensors.Universal sensor mounting bracket is availableUniversal sensor mounting bracket (forthru-beam side sensing type EX-23?only) which can freely adjust the heightand the angle of the sensor is available.Height adjustmentAngle adjustmentHeight adjustment:15 mm0.591 in360? rotation(With sensitivity adjuster) (Without sensitivity adjuster)214EX-20Light-ONDark-ONLight-ONDark-ONLight-ONDark-ONLight-ONDark-ONLight-ONDark-ONLight-ONDark-ON(Convergent point: 10 mm 0.394 in)(Convergent point: 10 mm 0.394 in)45 to 115 mm1.772 to 4.528 inEX-21AEX-21A-PNEX-21BEX-21B-PNEX-23EX-23-PNEX-29AEX-29A-PNEX-29BEX-29B-PNEX-22AEX-22A-PNEX-22BEX-22B-PNEX-24AEX-24A-PNEX-24BEX-24B-PNEX-26AEX-26A-PNEX-26BEX-26B-PNEX-28AEX-28A-PNEX-28BEX-28B-PNNPN open-collector transistorPNP open-collector transistorNPN open-collector transistorPNP open-collector transistorNPN open-collector transistorPNP open-collector transistorNPN open-collector transistorPNP open-collector transistorNPN open-collector transistorPNP open-collector transistorNPN open-collector transistorPNP open-collector transistorNPN open-collector transistorPNP open-collector transistorNPN open-collector transistorPNP open-collector transistorNPN open-collector transistorPNP open-collector transistorNPN open-collector transistorPNP open-collector transistorNPN open-collector transistorPNP open-collector transistorNPN open-collector transistorPNP open-collector transistorNPN open-collector transistorPNP open-collector transistorSwitchableeither Light-ONor Dark-ONThru-beamRetroreflectiveDi f fuse ref lectiveConvergent reflectiveNarrow-view ref lect iveLong distance spot beam typeSide sensingDiffused beam typeFront sensingSmall spot beam typeSide sensingFront sensingSide sensingSide sensingSide sensingType Appearance Sensing range Model No. Output Output operation30 to 200 mm1.181 to 7.874 in(Note 1)5 to 160 mm0.197 to 6.299 in(Note 2)1 m3.281 ft2 m6.562 ft2 to 25 mm0.079 to 0.984 in6 to 14 mm0.236 to 0.551 inNotes: 1) The sensing range of the retroreflective type sensor is specified for the RF-200reflector.Further, the sensing range is the possible setting range for the reflector.The sensor can detect an object less than 30 mm 1.181 in away.However, if the reflector is set 100 mm 3.937 in or less away, the sensing objectshould be opaque.Notes: 2) In case of using this product at a sensing range of 50 mm 1.969 in or less, takecare that the sensitivity adjustment range becomes extremely narrow. Sensor ReflectorReflectorActual sensing range of the sensorSetting range of the reflectorReflector cannot be placedin this range 30 mm 1.181 in200 mm7.874 inNOTE: Mounting bracket is not supplied with the sensor. Please select from the range of optional sensormounting brackets (four types).ORDER GUIDE215EX-20EX-21AEX-21BEX-23EX-29AEX-29BEX-22AEX-22BEX-24AEX-24BEX-26AEX-26BEX-28AEX-28BEX-21A-PNEX-21B-PNEX-23-PNEX-29A-PNEX-29B-PNEX-22A-PNEX-22B-PNEX-24A-PNEX-24B-PNEX-26A-PNEX-26B-PNEX-28A-PNEX-28B-PNType Standard Without reflector type 5 m 16.404 ft cablelength typeWithout reflector & 5 m16.404 ft cable length typeEX-29A-YEX-29B-YEX-29A-PN-YEX-29B-PN-YNPN outputThru-beamConvergentreflectiveNarrow-viewreflectiveDiffusereflectiveRetroreflectiveEX-21A-C5EX-21B-C5EX-23-C5EX-29A-C5EX-29B-C5EX-22A-C5EX-22B-C5EX-24A-C5EX-24B-C5EX-26A-C5EX-26B-C5EX-28A-C5EX-28B-C5EX-29A-Y-C5EX-29B-Y-C5Front sensingSide sensingSide sensingSide sensingDiffusedbeam type Front sensingSmall spotbeam type Side sensingLong distancespot beam typeDiffusedbeam typeSmall spotbeam typeLong distancespot beam typeSide sensingPNP outputThru-beamConvergentreflectiveNarrow-viewreflectiveDiffusereflectiveRetroreflectiveFront sensingSide sensingSide sensingSide sensingFront sensingSide sensingSide sensingORDER GUIDEAccessory• RF-200 (Reflector)• Table of Model Nos.Without reflector type and 5 m 16.404 ft cable length typeWithout reflector type and 5 m 16.404 ft cable length type (standard: 2 m 6.562 ft) are also available.216EX-20Slit on one sideSlit on both sidesSlit on one sideSlit on both sidesSlit on one sideSlit on both sidesSlit on one sideSlit on both sides• Sensing range: 200 mm 7.874 in• Min. sensing object: "2.6 mm "0.102 in• Sensing range: 40 mm 1.575 in• Min. sensing object: "0.5 mm "0.020 in• Sensing range: 350 mm 13.780 in• Min. sensing object: "3 mm "0.118 in• Sensing range: 70 mm 2.756 in• Min. sensing object: "0. 5mm "0.020 in• Sensing range: 600 mm 23.622 in• Min. sensing object: "2.6 mm "0.102 in• Sensing range: 300 mm 11.811 in• Min. sensing object: 0.5?3 mm 0.020?0.118 in• Sensing range: 800 mm 31.496 in• Min. sensing object: "3 mm "0.118 in• Sensing range: 400 mm 15.748 in• Min. sensing object: 0.5?3 mm 0.020?0.118 inUniversal sensormounting bracket[For EX-23? only]Mounting spacerFor front sensingtype sensor onlySensor checker(Note)( )MS-RF21-1RF-210RF-11RF-12MS-EX20-FSCHX-SC2• Ambient temperature:?25 to?50 ?C ?13 to?122 ?F• Ambient humidity:35 to 85 % RHNotes: i) Keep the tape free fromstress. If it is pressedtoo much, its capabilitymay deteriorate.Notes: ii) Do not cut the tape.It will deteriorate thesensing performance.• Sensing range:70 to 200 mm2.756 to 7.874 in• Sensing range:60 to 280 mm2.362 to 11.024 in• Sensing range: 50 to 400 mm1.969 to 15.748 in• Min. sensing object: "30 mm"1.181 inProtective mounting bracket for RF-210It protects the reflector from damage andmaintains alignment.ReflectorFor retroreflectivetype sensor onlyReflector mounting bracketReflective tapeFor retroreflectivetype sensor only( )( )OS-EX20-05Slit size"0.5 mm 0.020 inMS-EX20-1MS-EX20-2MS-EX20-3MS-EX20-4MS-EX20-5Sensormounting bracketRound slit maskFor thru-beam typesensor only Rectangular sl i t maskFor thru-beam typesensor onlyFor frontsensing typeFor sidesensing typeFor frontsensing typeFor sidesensing typeBack angled mounting bracket for front sensing type sensor(The thru-beam type sensor needs two brackets.)Foot angled mounting bracket for side sensing type sensor(The thru-beam type sensor needs two brackets.)L-shaped mounting bracket for front sensing type sensor(The thru-beam type sensor needs two brackets.)Back angled mounting bracket for side sensing type sensor(The thru-beam type sensor needs two brackets.)It can adjust the height and the angle of thesensor. (Two brackets are needed.)It is used when mounting the front sensingtype from the rear side.(One set consists of 10 pcs.)It is useful for beam alignment of thru-beamtype sensors. The optimum receiver position isgiven by indicators, as well as an audio signal.Designation Model No. Description()()( )OS-EX20E-05Slit size"0.5 mm 0.020 in( )OS-EX20-05?3Slit size 0.5?3 mm0.020?0.118 in( )OS-EX20E-05?3Slit size 0.5?3 mm0.020?0.118 in( )OPTIONSRound slit maskFitted on the front face of the sensor with one-touch.• OS-EX20-05 • OS-EX20E-05Rectangular slit maskFitted on the front face of the sensor with one-touch.• OS-EX20-05?3 • OS-EX20E-05?3Sensor mounting bracket• MS-EX20-1 • MS-EX20-2• MS-EX20-3 • MS-EX20-41.311 in 0.433 in0.504 in33.3 mm 11 mm12.8mm1.181 in0.028 in0.315 in30 mm0.7 mm8 mm1.181 in0.984 in0.028 in30 mm25 mm0.7 mmReflector• RF-210Reflective tape• RF-11 • RF-12Reflector mounting bracket• MS-RF21-1Two M3 (length 12 mm0.472 in) screws withwashers are attached.Material: Stainless steel (SUS304)Two M3 (length 5 mm 0.197 in)pan head screws [stainless steel(SUS304)] are attached.Material: Stainless steel (SUS304)Two M3 (length 14 mm 0.551 in)screws with washers [stainlesssteel (SUS304)] are attached.Material: Stainless steel (SUS304)Two M3 (length 5 mm 0.197 in)pan head screws [stainless steel(SUS304)] are attached.Material: Stainless steel (SUS304)Two M3 (length 14 mm 0.551 in)screws with washers [stainlesssteel (SUS304)] are attached.Mounting spacerMaterial: Die-cast zinc alloy 360° rotationHeight adjustment:15 mm 0.591 inMaterial: Nylon 6Universal sensor mounting bracket• MS-EX20-5Mounting spacer• MS-EX20-FSSensor checker• CHX-SC2Two M3 (length 12 mm 0.472 in)screws with washers [stainlesssteel (SUS304)], one M3 (length10 mm 0.394 in) hexagon-socket-head bolt [stainless steel(SUS304)], and one M3 hexagonnut [stainless steel (SUS304)] areattached.Sensor checkerLEVELPOWER CHX-SC2217EX-2015 % or less of operation distance0.05 mm 0.002 in or less 0.5 mm 0.020 in or less 0.3 mm 0.012 in or less 0.1 mm 0.004 in or less 0.05 mm 0.002 in or less 0.3 mm 0.012 in or less(Setting distance: 10 mm 0.394 in) (Setting distance: 10 mm 0.394 in)12 to 24 V DC?10 % Ripple P-P 10 % or lessEmitter: 10 mA or less, Receiver: 15 mA or less 20 mA or lessNPN open-collector transistor• Maximum sink current: 50 mA• Applied voltage: 30 V DC or less (between output and 0 V)• Residual voltage: 1 V or less (at 50 mA sink current)0.4 V or less (at 16 mA sink current)DC-12 or DC-13Incorporated0.5 ms or lessOrange LED (lights up when the output is ON) (thru-beam type: located on the receiver)Green LED (lights up under stable light received condition or stable dark condition)Continuously variable adjuster Continuously variable adjusterLocated on the receiver3 (Industrial environment)IP67 (IEC)?25 to ?55 °C ?13 to ?131 °F (No dew condensation or icing allowed), Storage: ?30 to ?70 °C ?22 to ?158 °F35 to 85 % RH, Storage: 35 to 85 % RHSunlight: 10,000 #x at the light-receiving face, Incandescent light: 3,000 #x at the light-receiving faceEN 50081-2, EN 50082-2, EN 60947-5-21,000 V AC for one min. between all supply terminals connected together and enclosure20 M?, or more, with 250 V DC megger between all supply terminals connected together and enclosure10 to 500 Hz frequency, 3 mm 0.118 in amplitude (20 G max.) in X, Y and Z directions for two hours each500 m/s2 acceleration (50 G approx.) in X, Y and Z directions for three times eachRed LED (modulated)Enclosure: Polyethylene terephthalate, Lens: Polyalylate0.1 mm2 3-core (thru-beam type sensor emitter: 2-core) cabtyre cable, 2 m 6.562 ft longExtension up to total 50 m 164.042 ft is possible with 0.3 mm2, or more, cable (thru-beam type: both emitter and receiver).Emitter: 20 g approx., Receiver: 20 g approx. 20 g approx.Adjusting screwdriver: 1 pc. Adjusting screwdriver: 1 pc. Adjusting screwdriver: 1 pc.Green LED (lights up under stable light received condition or stable dark condition), located on the receiverRF-200 (Reflector): 1 pc.Adjusting screwdriver: 1 pc.Thru-beam Diffuse reflectiveConvergent reflective Narrow-view reflectiveDiffused beam type Small spot beam type Long distance spot beam typeFront sensing Side sensing Side sensing Side sensing Front sensing Side sensing Side sensingEX-21A(-PN) EX-29A(-PN) EX-22A(-PN) EX-24A(-PN) EX-26A(-PN) EX-28A(-PN)EX-21B(-PN) EX-29B(-PN) EX-22B(-PN) EX-24B(-PN) EX-26B(-PN) EX-28B(-PN)RetroreflectiveEX-23(-PN)(Note 2)PNP open-collector transistor• Maximum source current: 50 mA• Applied voltage: 30 V DC or less (between output and ?V)• Residual voltage: 1 V or less (at 50 mA source current)0.4 V or less (at 16 mA source current)1 m3.281 ftMin. "3 mm "0.118 in opaque object Setting distance betweenemitter and receiver: 2 m6.562 ftMin. "2.6 mm "0.102 in opaque object Setting distance betweenemitter and receiver: 1 m3.281 ft"15 mm "0.591 inor more opaque ortranslucent object (Note 3)Opaque, translucent or transparentobjectMin. "0.1 mm"0.004 incopper wire Setting distance: 10 mm 0.394 inOpaque,translucent or transparent objectMin. "1 mm "0.039 incopper wire at settingdistance 80 mm 3.150 in2 m6.562 ft30 to 200 mm1.181 to 7.874 in(Note 3)2 to 25 mm 0.079 to 0.984 in(Conv. point: 10 mm 0.394 in)with white non-glossy paper(50?50 mm)(1.969?1.969 in)6 to 14 mm 0.236 to 0.551 in (Conv.point: 10 mm 0.394 in) with whitenon-glossy paper (50? 50 mm1.969?1.969 in), spot diameter"1 mm "0.039 in with sett ingdistance 10 mm 0.394 in45 to 115 mm 1.772 to 4.528 inwith white non-glossy paper(100?100 mm 3.937?3.937 in),spot diameter "5 mm "0.197 inwith setting distance 80 mm3.150 inItemModel No.(Note 1)Light-ONDark-ONTypeSensing rangeSensing objectHysteresisRepeatability(perpendicular to sensing axis)Supply voltageCurrent consumptionOutputUtilization categoryShort-circuit protectionResponse timeOperation indicatorStability indicatorSensitivity adjusterOperation mode switchPollution degreeProtectionAmbient temperatureAmbient humidityAmbient illuminanceEMCVoltage withstandabilityInsulation resistanceVibration resistanceShock resistanceEmitting elementMaterialCableCable extensionWeightAccessoriesEnvironmental resistanceContinuously variable adjuster,located on the emitter5 to 160 mm 0.197 to 6.299 in(Note 4)with white non-glossy paper(200?200 mm)(7.874?7.874 in)( )( )( ) ( )Min. "0.1 mm"0.004 incopper wire Setting distance: 10 mm 0.394 in( )SPECIFICATIONSNotes: 1) Model Nos. having the suffix ‘-PN’ are PNP output type.Notes: 2) Either Light-ON or Dark-ON can be selected by the operation mode switch (located on the receiver).3) The sensing range and the sensing object of the retroreflective type sensor are specified for the RF-200 reflector. Further, the sensing range is the possible setting range for the reflector. The sensorcan detect an object less than 30 mm 1.181 in away. However, if the reflector is set 100 mm 3.937 in orless away, the sensing object should be opaque.Notes: 4) In case of using this product at a sensing range of 50 mm 1.969 in or less, take care that the sensitivityadjustment range becomes extremely narrow. Sensor ReflectorReflectorActual sensing range of the sensorSetting range of the reflectorReflector cannot be placedin this range 30 mm 1.181 in200 mm7.874 in218EX-20I/O CIRCUIT AND WIRING DIAGRAMSLoadBrownBlack (Note)BlueColor code??12 to 24 V DC?10 %LoadBrownBlack (Note)BlueColor code??12 to 24 V DC?10 %I/O circuit diagram Note: The emitter of the thru-beam type sensor does not incorporate the output.Note: The emitter of the thru-beam type sensor does notincorporate the black wire.Note: The emitter of the thru-beam type sensor does notincorporate the black wire.Wiring diagramSymbols ... D : Reverse supply polarity protection diodeZD: Surge absorption zener diodeTr : NPN output transistorNPN output typeUsers’ circuitInternal circuitDZ DTr(Brown) ?V(Black) Output (Note)(Blue) 0 VColor code50 mA max.LoadSensor circuit??12 to 24 V DC?10 %Note: The emitter of the thru-beam type sensor does not incorporate the output.Symbols ... D : Reverse supply polarity protection diodeZD: Surge absorption zener diodeTr : PNP output transistorI/O circuit diagram Wiring diagramPNP output typeUsers’ circuitInternal circuitDTr(Brown) ?V(Black) Output (Note)(Blue) 0 VColor code50 mA max.LoadSensor circuit??12 to 24 V DC?10 %Z DSENSING CHARACTERISTICS (TYPICAL)Parallel deviation Angular deviationParallel deviation with roundslit masks ("0.5 mm "0.020 in)Parallel deviation with rectangular slitmasks (0.5?3 mm 0.020?0.118 in)100 50 0 50 1003.937 1.969 1.969 3.93700.511.6403.281# LReceiverEmitterSetting distance L (m ft)Operating point ? (mm in)CenterLeft Right40 20 0 20 4000.51$ LCenterLeft RightOperating angle $ ( ° )ReceiverEmitter1.6403.281Setting distance L (m ft)Correlation between setting distance and excess gain0 1 3 4 510510023.281 9.843 13.123 16.4046.562Excess gain50Setting distance L (m ft)EX-21?EX-23?10 50 150 200 250110510010050EX-22?1.969 5.906 7.874 9.8433.937Excess gainSetting distance L (mm in)0 200 600 800 1,00010510040050EX-29?1107.874 23.622 31.496 39.37015.748Excess gainSetting distance L (mm in)20 10 0 10 200100200# LReceiverEmitterSlit on one sideSlit on both sides0.787 0.394 0.394 0.7873.9377.874Setting distance L (mm in)Operating point ? (mm in)CenterLeft Right40 20 0 20 400200400600800# LReceiverEmitterSlit on one sideSlit on both sides31.49623.62215.7487.8741.575 0.787 0.787 1.575Setting distance L (mm in)Operating point ? (mm in)CenterLeft RightEX-21? Thru-beam typeEX-21? EX-23?EX-29? EX-22?219EX-20SENSING CHARACTERISTICS (TYPICAL)Parallel deviation Angular deviation Parallel deviation with round slitmasks ("0.5 mm "0.020 in)Parallel deviation with rectangular slitmasks (0.5?3 mm 0.020?0.118 in)EX-23? Thru-beam type100 50 0 50 100# LReceiverEmitter3.937 1.969 1.969 3.9376.5623.281Setting distance L (m f t )Operating point ? (mm in)CenterLeft Right012100 50 0 50 100$ LEmitterReceiver6.5623.281Setting distance L (m ft)Operating point $ ( ° )CenterLeft Right012Parallel deviation Angular deviationEX-29? Retroreflective type20 10 0 10 200100200LSensor#Reflector(RF-200)0.787 0.394 0.394 0.7877.8743.937Setting distance L (mm in)Operating point ? (mm in)CenterLeft Right40 20 0 20 400100200SensorangulardeviationReflectorangulardeviationSensorReflector(RF-200)SensorangulardeviationL$Reflector(RF-200)Reflectorangulardeviation$ LSensor7.8743.937Setting distance L (mm in)Operating angle $ ( ° )CenterLeft RightSensing field Correlation between sensing object size and sensing rangeEX-22? Diffuse reflective typeAs the sensing object size becomes smallerthan the standard size (white non-glossy paper200?200 mm 7.874?7.874 in), the sensingrange shortens, as shown in the left graph.0501001502004 2 0 2 4White non-glossy paperBlack non-glossy paperLightness: 6# L200?200 mm7.874?7.874 inNon-glossy paperSensorLeft RightCenterOperating point # (mm in)0.157 0.079 0.079 0.1577.8745.9063.9371.969Setting distance L (mm in)0 50 100 150 200100200Sensing range L (mm in)White non-glossy paper side length a (mm in)La?a mm a?a inWhite non-glossy paperSensor1.969 3.937 5.906 7.8747.8743.937Sensing fields• Horizontal (left and right) direction • Vertical (up and down) directionEX-24? Convergent reflective type24 0 2 4010203040# L8 mm 0.315 inSensor50?50 mm1.969?1.969 inWhite non-glossy paper1.5751.1810.7870.3940.157 0.079 0.079 0.157Operating point ? (mm in)CenterLeft RightSetting distance L (mm in)24 0 2 4010203040Sensor# L6 mm 0.236 in1.5751.1810.7870.3940.157 0.079 0.079 0.157Operating point ? (mm in)CenterLeft RightSetting distance L (mm in)50?50 mm 1.969?1.969 inWhite non-glossy paper1020 0 10 200100200300400Operating point ? (mm in)CenterLeft RightSlit on one sideSlit on both sidesReceiverEmitter# L0.787 0.394 0.394 0.7877.87411.8113.93715.748Setting distance L (mm in)40 20 0 20 4000.51Slit on one sideSlit on both sidesReceiverEmitter# L1.575 0.787 0.787 1.5753.2811.640Setting distance L (m ft)Operating point ? (mm in)CenterLeft Right220EX-20SENSING CHARACTERISTICS (TYPICAL)N2 N4 N8N61002030400.3940.7871.1811.575Sensing range L (mm in)Distance to convergent pointSensing regionN2N1 N3 N4 N5 N6 N7 N8 N9Lightness LightDarkMirrorAluminum plateWhite non-glossy paperBlack-painted non-glossy plateBlack non-glossy paper (N5)Distance to convergent point200406080Stainless steel plate(SUS304)0.7871.5752.3623.150Sensing range L (mm in)Correlation between lightness and sensing rangeThe sensing region is represent-ed by oblique lines in the leftfigure. However, the sensitivityshould be set with enough mar-gin because of slight variation inproducts.Lightness shown on the leftmay differ slightly from theactual object condition.( )The bars in the graph indicate thesensing range for the respectivematerial. However, there is aslight variation in the sensingrange depending on the product.Further, if there is a reflectiveobject (conveyor, etc.) in thebackground of the sensing object,since it affects the sensing,separate it by more than twice thesensing range shown in the leftgraph.Correlation between material (50?50 mm 1.969?1.969 in) and sensing rangeEX-24? Convergent reflective type#White non-glossy paperLSensor0.51 0 0.5 10.0200.039 0.020 0.03905101520Operating point ? (mm in)CenterLeft RightSetting distance L (mm in)0.1970.3940.5910.78750?50 mm1.969?1.969 in4.1 mm0.161 in0.51 0 0.5 105101520Sensor13.5 mm0.531 in# L50?50 mm 1.969?1.969 inWhite non-glossy paper0.0200.039 0.020 0.039Operating point ? (mm in)CenterLeft RightSetting distance L (mm in)0.7870.5910.3940.197EX-26? Convergent reflective typeSensing field• Horizontal (left and right) directionCorrelation between lightness and sensing range Correlation between material (50?50 mm 1.969?1.969 in) and sensing range• Vertical (up and down) directionN2 N4 N8N650101520Sensing range L (mm in) Distance to convergent pointSensing regionN2N1 N3 N4 N5 N6 N7 N8 N9Lightness LightDark0.1970.3940.5910.787MirrorAluminum plateWhite non-glossy paperBlack-painted non-glossy plateBlack non-glossy paper (N5)20040Sensing range L (mm in)Stainless steel plate(SUS304)1.5750.787 Distance to convergent pointThe sensing region is represent-ed by oblique lines in the leftfigure. However, the sensitivityshould be set with enough mar-gin because of slight variation inproducts.The graph is drawn for themaximum sensitivity setting.The bars in the graph indicate thesensing range for the respectivematerial. However, there is aslight variation in the sensingrange depending on the product.Further, if there is a reflectiveobject (conveyor, etc.) in thebackground of the sensing object,since it affects the sensing,separate it by more than twice thesensing range shown in the leftgraph, or adjust the sensitivityadjuster.The graph is drawn for the maximum sensitivity setting.24 0 2 40.0790.157 0.079 0.1570501001502001.9693.9375.9067.874# LSensor4.1 mm0.161 inOperating point ? (mm in)CenterLeft RightSetting distance L (mm in)White non-glossy paper Black non-glossy paperLightness: 6Approach direction ofblack non-glossy paper100?100 mm3.937?3.937 inNon-glossy paper500 100 150 2001.969 3.937 5.906 7.874La?a mm a?a inWhite non-glossy paperSensorWhite non-glossy paper side length a (mm in)501001502001.9693.9375.9067.874Sensing range L (mm in)As the sensing object size becomes smallerthan the standard size (white non-glossy paper100?100 mm 3.937?3.937 in), the sensingrange shortens, as shown in the left graph.EX-28? Narrow-view reflective typeSensing field Correlation between sensing object size and sensing rangeLightness shown on the leftmay differ slightly from theactual object condition.( ) ( )( )221EX-20PRECAUTIONS FOR PROPER USEMounting• Mount using M3 screws. The tightening torque should be0.5 N?m or less.Stability indicator• The stability indicator (green) lights up when the incidentlight intensity has sufficient margin with respect to theoperation level.If the incident light intensity level is such that the stabilityindicator lights up, stable sensing can be done without thelight received operation and the light interrupted operationbeing affected by a change in ambient temperature or sup-ply voltage.Others• Do not use during the initial transient time (50 ms) afterthe power supply is switched on.• If sensors are mounted close together and the ambienttemperature is near the maximum rated value, provide forenough heat radiation / ventilation.• If a reflective object is present in the background, thesensing of EX-28A(-PN) and EX-28B(-PN) may beaffected. When setting the sensor, make sure to confirmthat the reflective object has no effect. In case thereflective object affects the sensing, take measures suchas removing the reflective object or coloring it in black, etc.Operation of stability indicatorOutput operationIncidentlight marginLight interruptionmarginOutput operation level01000Incident light intensity (%)Setting distance15 % approx. 25 % approx. Lights upLight received operationLight interrupted operationLights upLights offNote: Operation mode switch should be turned fully till it stops.Light-ON mode is obtained when the operation mode switch (located on the receiver) is turned fully clockwise (L side).Dark-ON mode is obtained when the operation mode switch (located on the receiver) is turned fully counterclockwise (D side).Switch position DescriptionLDDLOperation mode switch (EX-23? only)1234Turn the sensitivity adjuster fully counterclockwiseto the minimum sensitivity position (• mark).In the light received condition, turn the sensitivityadjuster slowly clockwise and confirm the pointointwhere the sensor enters the ‘Light’ state operation.In the dark condition, turn the sensitivity adjusterfurther clockwise until the sensor enters the ‘Light’state operation and then bring it back to confirmpoint where the sensor just returns to the ‘Dark’state operation.If the sensor does not enter the ‘Light’ state operationeven when the sensitivity adjuster is turned fullyclockwise, this extreme position is point .The position at the middle of points andandis the optimum sensing position.Step DescriptionNotes: 1) Use the attached adjusting screwdriver to turn the adjuster slowly. Turningwith excessive strength will damage the adjuster.Notes: 2) In case of using EX-22? at a sensing distance of 50 mm 1.969 in or less,take care that the sensitivity adjustment range becomes extremely narrow.( )Front sensing Side sensingNote: When mounting the front sensing type sensor, use M3 pan headscrews without washers, etc.• When mounting the front sensing type from the backside, fitthe mounting spacer (MS-EX20-FS) and fix with screws.M3 pan head screws (Note)M3 screws1 Fit the mounting spaceron the sensor.2 Align the mounting holes ofthe mounting spacer and thesensor and mount with M3screws. The tightening torqueshould be 0.5 N?m or less.Mounting methodMountingspacer (Optional)M3 screwsMAXAMAXABMAXABOptimum positionSensitivity adjustment (side sensing type only)Sensitivity adjusterThis product is not a safety sensor. Its use is not intended or designed to protect life and prevent bodyinjury or property damage from dangerous parts ofmachinery. It is a normal object detection sensor.Glossy object sensing [EX-29?(-PN)]• Please take care of the following points when detectingmaterials having a gloss.1 Make L, shown in the diagram, sufficiently long.2 Install at an angle of 10 to 30 degrees to the sensingobject.L10 to 30 ?Make L sufficiently longReflectorSensing objectGlossy surfaceSensorWiring• Make sure that the power supply is off while wiring.• Verify that the supply voltage variation is within the rating.• If power is supplied from a commercial switching regulator,ensure that the frame ground (F.G.) terminal of the powersupply is connected to an actual ground.• In case noise generating equipment (switching regulator,inverter motor, etc.) is used in the vicinity of this product,connect the frame ground (F.G.) terminal of the equipmentto an actual ground.• Do not run the wires together with high-voltage lines orpower lines or put them in the same raceway.• This can cause malfunction due to induction.MAXAABBB222EX-20DIMENSIONS (Unit: mm in)Operation indicator (Orange)(Note)Stability indicator (Green)(Note)2-"3.2 "0.126 mounting holes"2.5 "0.098 cable, 2 m 6.562 ft longBeam axis2.30.0914.50.177 160.630100.3943 0.118180.70990.3543.50.1388.20.3232.80.11010.50.413Operation indicator (Orange)(Note 1)Stability indicator (Green) (Note 1)6.50.2563 0.118130.5123 0.118190.7482-"3.2 "0.126mounting holes"2.5 "0.098 cable,2 m 6.562 ft longOperation mode switch(Note 2)9.50.374Beam axisNote: Not incorporated on the emitter. Notes: 1) Not incorporated on the emitter.2) It is the sensitivity adjuster on the emitter.EX-29? EX-22?EX-26? EX-28?EX-21? EX-23?EX-24?Sensor SensorSensor SensorOperation indicator (Orange)Stability indicator (Green)"2.5 "0.098 cable, 2 m 6.562 ft longSensitivity adjusterBeam-receiving partBeam-emitting part2.80.1108.20.323100.39412.30.484160.6303 0.1183 0.1185.30.20950.1975.50.217110.4332-"3.2 "0.126mounting holes220.866Operation indicator (Orange)Stability indicator (Green)Beam-receiving partBeam-emitting part2.30.0914.50.177 50.19790.354180.709"2.5 "0.098 cable, 2 m 6.562 ft long3 0.1182-"3.2 "0.126mounting holes160.630100.394RF-200 Reflector (Accessory for the retroreflective type sensor)Material: Acrylic (Reflector)ABS (Base)4.6 0.181(13)(0.512)9.60.37817.50.6897.750.3056.5 0.256 1.50.059"2.3"0.0912.30.091130.5123.5 0.138"3.2 "0.126 mounting holeRF-210 Reflector (Optional)100.394250.9843.20.12633.31.31112.80.504110.433ReflectorBaseM3 nut mounting holes(for mounting at the back)2-"3.4 "0.134 thru-holes(for mounting at the side)(for mounting at the back)2-"3.4 "0.134 holes, 6 0.236 deep(for mounting at the side)2-M3 nut mounting holesMaterial: Acrylic (Reflector)ABS (Base)Two M3 (length 8 mm0.315 in) screws withwashers and two nutsare attached.223EX-20DIMENSIONS (Unit: mm in)RF-11 Reflective tape (Optional)80.3150.70.02830 1.181Adhesive tapeEffective reflecting surface(28)(1.102)(6)(0.236)RF-12 Reflective tape (Optional)30 1.181 0.70.028250.984Adhesive tapeEffective reflecting surface(28)(1.102)(23)(0.906)MS-RF21-1 Reflector mounting bracket for RF-210 (Optional)Assembly dimensions3.20.12610.50.413t 1.5t 0.0595 0.1974-M3?0.5 0.020110.43329.51.161100.39450.19720.07920.07990.354190.748120.472 Beam-receivingpart20.0794.50.1775 0.197t 1.5t 0.059 10.50.413(6.5)(0.256)(1.2)(0.047)50.1972 0.0793.2 0.126160.630160.63029.51.1611.50.05990.354190.74810.50.413110.433100.394(12)(0.472)Material: Stainless steel (SUS304)Two M3 (length 5 mm 0.197 in) panhead screws [stainless steel (SUS304)] are attached.MS-EX20-1 Sensor mounting bracket (Optional)Assembly dimensionsMounting drawing with EX-21?Material: AcrylicMaterial: AcrylicMaterial: Stainless steel (SUS304)Two M3 (length 12 mm 0.472 in)screws with washers are attached.230.906501.9695.50.217160.630100.3943.50.1383.20.12612.5 0.492R7.5R0.295250.984461.811t 1.2t 0.047130.512"36"1.417"25"0.98420 ?30 ?230.9065.50.217100.39412.8 0.50413 0.512461.811250.98420 ?30 ?501.969"36"1.417224EX-20DIMENSIONS (Unit: mm in)3.2 0.1263.50.13820.0793.20.1263-M3?0.5 0.020t 1.5t 0.0592.50.0982.50.0982.50.09810 ?160.630t 1.2t 0.047341.33914 ?160.630 3.20.12614.50.571160.63030.11880.31530.1187.50.2951 2130.512R13R0.51212.50.492R13R0.512Beam-receiving part0.30.01210.50.413240.945130.51217.50.689t 1.2t 0.047341.33914 ?160.63080.31520.0793.2 0.1263.50.13811.60.45730.1187.50.295 12.50.4923.20.126 (24.1)(0.949)Material: Stainless steel (SUS304)Two M3 (length 14 mm 0.551 in)screws with washers [stainless steel(SUS304)] are attached.Material: Stainless steel (SUS304)Two M3 (length 14 mm 0.551 in)screws with washers [stainless steel(SUS304)] are attached.MS-EX20-2 Sensor mounting bracket (Optional)Assembly dimensionsMounting drawing with thereceiver of EX-23?MS-EX20-3 Sensor mounting bracket (Optional)4-M3?0.5 0.02090.3543.2 0.1262 0.07920.07990.354120.472190.748200.7876.50.256100.394t 1.5t 0.059140.5514.50.1773.2 0.1262 0.07920.07910.50.4131.5 0.059190.748160.63018.50.7283.50.138100.394(1.2)(0.047)t 1.5t 0.059Beam-receiving part11.50.45390.35490.354140.551Material: Stainless steel (SUS304)Two M3 (length 5 mm 0.197 in) pan head screws[stainless steel (SUS304)] are attached.Assembly dimensionsMounting drawing with thereceiver of EX-21?MS-EX20-4 Sensor mounting bracket (Optional)3-M3?0.5 0.0203.2 0.126t 1.5t 0.0592.50.0982.50.098t 1.2t 0.0473.20.126R13R0.51210 ?160.63080.31530.1183 0.118120.47230.118230.90614.50.57150.197170.66914 ?80.315130.5121 22.50.098130.512R13R0.512Beam-receiving part0.30.01210.50.41312.10.4763.20.126130.51280.3153 0.1188.20.32330.118120.4724.5 0.177 130.5123.5 0.138230.90614 ?t 1.2t 0.047170.66980.315(24.6)(0.969)Assembly dimensionsMounting drawing with thereceiver of EX-23?225EX-20DIMENSIONS (Unit: mm in)MS-EX20-5 Universal sensor mounting bracket (Optional)Note: This is the adjustable range of the movable part.Assembly dimensionsMounting drawing with the receiver of EX-23?Material: Nylon 6Material: Die-cast zinc alloy Two M3 (length 12 mm 0.472 in) screws with washers [stainlesssteel (SUS304)], one M3 (length 10 mm 0.394 in) hexagon-socket-head bolt [stainless steel (SUS304)], and one M3 hexagonnut [stainless steel (SUS304)] are attached.MS-EX20-FS Mounting spacer (Optional)20.07960.2364.20.1652.50.0984.50.17780.31510 0.394160.6304.90.19310.70.421"2.5 "0.0982-"3.4 "0.134mounting holes90.35480.31560.236 100.3944.50.1770.30.012230.906Beam-receiving part 160.630Assembly dimensionsMounting drawing with thereceiver of EX-21?Material: Polycarbonate2-M3?0.5 0.02020.079"7"0.27670.2762.60.1024.10.161140.55160.2368 0.3156 0.2362.2 0.08720.0791.50.05940.1578.50.335 3.20.1265.50.2175.5 0.217"7"0.2762-"3.3 "0.130 thru-holes 2.60.1021.50.0593 0.1183 0.1183.2 0.12619.50.76822.50.886 25.51.00423.50.925301.1819.50.374160.630 22.50.88619.50.768120.472120.4722-"3.2 "0.126 mounting holes4.50.17719.50.76815.50.610150.5911 2130.512Beam-receiving part2-"3.2"0.126mountingholes6 0.236"7"0.276(7.3)(0.287) (6.7)(0.264)3 0.118120.4726.50.25630.1182.2 0.087130.512 25.51.004301.1818.50.33519.50.768140.551150.591(15) (0.591)(Note) date: 08/2005