Laser Thrubeam Photoelectric Sensor LX2(W) Series Instruction
Contents
1. 65 LX2 13 W Transmitter Le 68 21 20 444 60 3 04 5 9 i hi 20 30 1 6 64 DE 43 Y 9 4 cable length 1 8 m WARRANTY KEYENCE products are strictly factory inspected However in the event of a failure contact your nearest KEYENCE office with details of the failure 1 WARRANTY PERIOD The warranty period shall be for one year from the date that the product has been delivered to the location specified by the purchaser 2 WARRANTY SCOPE 1 If a failure attributable to KEYENCE occurs within the above mentioned warranty period we will repair the product free of charge However the following cases shall be excluded from the warranty scope Any failure resulting from improper conditions improper environments improper handling or improper usage other than described in the instruc tion manual the user s manual or the specifications specifically arranged between the purchaser and KEYENCE Any failure resulting from factors other than a defect of our product such as the purchaser s equipment or the design of the purchaser s software Any failure resulting from modifications or repairs carried out by any person other than KEYENCE staff Any failure that can certainly be prevented when the expendable part s is maintained or replaced correctly as described2. p Receiver Shield Black Laser beam will be emitted when the connection between terminals 1 and is short circuited Laser beam emission will stop when the connection between terminals 1 and 2 is open Short circuiting the yellow timing input and black 0 V lines will forcibly turn the control output white gray and green lines OFF 11 12 ALIGNMENT OF OPTICAL AXIS 1 Analog voltage output The LX2 70 W outputs an analog voltage according to the interrupted area of the laser beam The relationship between the interrupted area and the analog output voltage is shown in the graph below Analog voltage output vs Interrupted area of laser beam Typical LX2 11 W 12 W 13 W Output voltage V 5 0 5 2 5 50 LX2 11 W 1 0 5 0 10 0 LX2 12 W 3 0 15 0 300 LX2 13 W Interrupted area mm This graph shows the relationship between the interrupted area of the Note laser beam and the analog output voltage however the data in this graph are not representative of LX2 characteristics 2 Optical axis The optical axis of the LX2 is factory aligned so that the relationship between the interrupted area and the analog output voltage can be plotted as shown above For instant optical axis adjustment the bottom surfaces of the transmitter and the receiver and the right side of t
3. 2 Place an object of minimum allowable size in the detecting area 3 Turn the LOW trimmer counterclockwise until the LOW lower limit output indicator just lights an fF O HIGH as O HIGH output setting LOW output setting HINTS ON CORRECT USE Compatibility A transmitter and receiver with the same serial number have been calibrated as a pair Therefore be sure to use transmitter and receiver with the same serial number in order to satisfy specifications The sensor head and the amplifier are compatible Be sure to use a W type amplifier in combination with a W type sensor head If you connect a non W type amplifier to a W type sensor head it may cause an electric shock or may burnout the amplifier or the sensor Power supply When using a commercially available switching regulator be sure to correctly ground the chassis ground or earth ground terminal Wiring Route the wiring of the sensor head in a metal conduit separate from high voltage cables power cables and signal cables that generate EMI Otherwise the sensor head and controller may malfunction Mounting the sensor head Install the transmitter and receiver so that the mounting holes of both devices are positioned in the same plane Do not install the sensor head in a place subject to vibrations Environment Always keep transmitting and receiving surfaces of the sensor head free from materials which m
4. W LX2 110 W FDA CDRH 21CFR Part 1040 10 Class III b Class IEC EN 60825 1 Class 3B DIN EN 60825 1 Class 3B 2 Labels 1 FDA CDRH Warning labels FDA CDRH Class FDA CDRH Class IIIb LASER RADIATION DO NOT STARE INTO BEAM SEMICONDUCTOR LASER 670nm MAXIMUM OUTPUT 0 8mW PULSE DURATION 30 uSEC INVISIBLE LASER RADIATION CLASS Il LASER PRODUCT AVOID DIRECT EXPOSURE TO BEAM SEMICONDUCTOR LASER 780nm MAXMUM OUTPUT 3mW X m PULSE DURATION 30 uSEC CLASS IIIb LASER PRODUCT 2 IEC Explanatory Warning labels IEC Class 1 IEC E Classe 1 DIN Klasse 1 IEC Class 3B IEC French Classe 3B DIN Klasse 3B INVISIBLE LASER RADIATION AVOID EXPOSURE TO BEAM Maximum output 1 5mW UNSICHTBARE LASERSTRAHLUNG NICHT DEM STRAHL AUSSETZEN Maximum Leistung Wellenlange Pulsdauer LASER KLASSE 3B DIN EN 60825 1 2008 INVISIBLE RAYONNEMENT LASER EXPOSITION AU FAISCEAU DANGEREUSE Puissance maximale 1 5mW Longueur d onde mise 780nm Dur e de l impulsion 30us APPAREIL A LASER DE CLASSE 3B CEI EN 60825 1 2007 780nm Wavelength Pulse duration 30us CLASS 3B LASER PRODUCT IEC EN 60825 1 2007 3 Aperture label FDA Class AVOID EXPOSURE INVISIBLE LASER p RADIATION IS EMITTED FROM THIS APERTURE FDA Class II AVOID EXPOSURE LASER RADIATION IS EMITTED FROM THIS APERTURE FDA Class 116 AVOID EXPOSURE INVISIBLE LASER D RADIATION IS EMITTED FROM
5. block the beam by installing an enclosure with the appropriate reflectance Install the products so that the path of the laser beam is not as the same height as that of human eye Do not disassemble this product Laser emission from this product is not automatically stopped when it is disassembled SAFETY PRECAUTIONS ON LASER PRODUCT 5 Safety features provided with the LX2 series The LX2 series is provided with the following safety features Make sure these features function correctly before making any measurement 1 Laser radiation emission warning A visible LED that informs you that the laser beam is being emitted or is about to be emitted at least 3 seconds after power is provided to the amplifier and the sensor head Laser emission delay Laser emission only starts when the LED has been ON lit for at least seconds thus decreasing the possibility of laser exposure Laser emission remote control terminals Terminals for controlling laser emission are provided on the front of the amplifier You can remotely control laser emission using these terminals Key operated switch Set to the ON position to supply power You can lock the controlling power switch using the supplied key which can be removed only when set to the OFF position Beam attenuator A beam attenuator is supplied This cover is to be attached to the laser beam emitting portion of the sensor head If an operator must work in front of
6. the sensor head and there is risk to the eyes from the laser beam be sure to attach this shield For use with shield Attach the shield to the front surface of the transmitter lens LX2 11T W LX2 12T W LX2 110T W LX2 13T W Beam attenuator Secure the shield using the supplied screw For use without shield LX2 13T W Secure the shield to the screw hole on the rear of the sensor head using the supplied screw Beam attenuator PART NAMES Sensor head Amplifier 10 Transmitter LX2 11 W hn O LX2 110 W DD d e 90 ite Q S Level indicator for adjusting optical axis Number of LEDs lit corresponds to light quantity received Hefer to this indicator when aligning laser optical axis HIGH upper limit output LED indicator Lights when HIGH output is ON LOW lower limit output LED indicator Lights when LOW output is ON HIGH trimmer Used to set HIGH upper limit output level LOW trimmer Used to set LOW lower limit output level Analog voltage adjustment trimmer GAIN trimmer Used for fine SPAN adjustment of analog output voltage when adjusting optical axis alignment Power LED indicator Lights when power is ON Key operated switch Laser emission remote con
7. 5 000 lux Sunlight 5 000 lux Ambient temperature 0 to 40 C 32 to 104 F No condensation 0 to 50 C 32 to 122 F No condensation Relative humidity Vibration PBT Aluminum die cast Transmitter Approx 55 g 70 g Approx 90 g 100 g Approx 110 g 120 g including cables 1 Data obtained at a 20 C 68 F ambient temperature with half of the laser beam 2 Values in parenthesis are the weight of the W type models Incandescent lamp 10 000 lux Sunlight 10 000 lux Incandescent lamp 5 000 lux Sunlight 10 000 lux SPECIFICATIONS Amplifier Control output NPN open collector 100 mA 40 V max x 2 Response time Analog output Voltage impedance Response frequency Temperature fluctuation Typical 0 1 F S C 12 to 24 DCV 10 Ripple p p 10 max 100 mA max 0 to 50 C 32 to 122 F No freezing 35 to 85 No condensation 10 to 55 Hz 1 5 mm double amplitude in X Y and Z directions 2 hours respectively Weight including cable Approx 200 g 1 Typical values when the sensor head is connected 0 2 of F S C LX2 110 W 2 110 mA max LX2 110 W Detecting area The detecting area of each model corresponds to the dimensions of the receiver slit LX2 11 W LX2 12 W LX2 13 W LX2 110 W Slit dimensions 1 x 5 Slit dimensions 1 x 10 mm Slit dimensions 1 x 30 mm 17 DIMENSIONS Sensor head LX2 11 W Receiver 12 2 2X8 3 2 mounting hole LX2 11 W Transmit
8. ION 1 3 14 Higashi Nakajima Higashi Yodogawa ku Osaka 533 8555 Japan PHONE 81 6 6379 2211 www keyence com Specifications are subject to change without notice A4WW1 MAN 0069 Copyright 2010 KEYENCE CORPORATION All rights reserved 1450E 1060 1 96M10789 Printed in Japan 96M 10 7 89 1
9. KEYENCE Instruction Manual Laser hrubeam Photoelectric Sensor LX2 W Series 5 SAFETY Information for LX2 2 Precautions for Handling the LX2 W Series 3 Method for Insulating the Sensor Head from the Mounting Surface 4 Safety Precautions on Laser Product 5 10 Reie e tel 11 Alignment of Optical Axis AANEREN 12 Tol rance Setting m 14 e Oe Wel Ee AE 15 SPSCIICATIONS T 16 Bene 18 lay Io aeq n 20 Avoid mounting the sensor head in a place where electrostatic potential can build up or which is subject to EMI If any electrostatic potential reaches the sensor head the sensor s laser diode may be damaged If such a possibility exists ground the place where the sensor head is to be mounted and insert insulating material between the sensor head and the mounting surface so that the sensor will be static free See page 3 and 4 for further information SAFETY INFORMATION FOR LX2 SERIES This manual describes how to install the LX2 Series as well as its operating procedures and precautions Please read this manual carefully for your safety Symbols The followin
10. THIS APERTURE IEC Class 3B AVOID EXPOSURE Invisible laser radiation is gt emitted from this aperture IEC French Classe 3B EXPOSITION DANGEREUSE Un rayonnement laser invisible ij est mis par cette ouverture DIN Klasse 3B BESTRAHLUNG VERMEIDEN Austritt von unsichtbarer P Laserstrahlung SAFETY PRECAUTIONS ON LASER PRODUCT Label location lt Aperture IRGI DIN LX2 13 W LX2 110 W FDA Warning labels are attached to the sensor head as shown below When using this product in the countries and or regions other than U S use _ the IEC warning explanatory label in the package of this product In this case it be affixed on the FDA CDRH warning label which has already been affixed to this product FDA LX2 110 W LX2 11 W LX2 12 W LX2 13 W SAFETY PRECAUTIONS ON LASER PRODUCT 4 Safety consideration Do not disassemble this product Laser emission from this product is not automatically stopped when it A CAUTION is disassembled Clean the aperture regularly In addition stop the emission of the laser beam when cleaning Use of controls or adjustments or the performance of procedures other than those specified herein may result in hazardous radiation exposure 1 Class laser products MPE Maximum Permissible Exposure 1 9 mW cm Follow the
11. ay refract the laser beam such as water or oil When the lenses become soiled clean with a dry and soft cloth Do not use an organic solvent If there are air layers of different temperature between the LX2 110 transmitter and receiver this may cause a deterioration in resolution Monitor output cable blue If the monitor output cable blue and the shielding cable are short circuited the LX series will not operate If this condition is maintained for a prolonged period the amplifier may become damaged Extending the cable between the amplifier and sensor head If the cable between the amplifier and the sensor head is extended the LX2 series is more likely to be affected by interference which may result in poor resolution Do not extend the sensor cable Do not connect the sensor head while power is supplied to the amplifier 15 16 SPECIFICATIONS Sensor head LX2 110 W LX2 13 W Visible red semiconductor laser Wavelength 670 nm 780 nm 0 2 mW IEC 0 8 mW FDA 1 5 mW IEC 3 0 mW FDA 0 2 mW IEC 0 1 mW FDA Pulse duration 30 us Laser FDA CDRH 21CFR Part 1040 10 Class Class Class 1 Class 1 Detecting area width x thickness 30 x 1 mm Detecting distance 0 to 300 mm Smallest detectable object Opaque object with a Opaque object with a 0 05 mm dia 04 min dia 0 2 mm dia diameter of 8 um diameter of 8 to 50 um Repeatability TEE uc 10 um 30 um Ambient light Incandescent lamp
12. electrostatic discharge when connect ing the sensor head and controller When connecting them be sure to use an anti static wrist strap METHOD FOR INSULATING THE SENSOR HEAD FROM THE MOUNTING SURFACE Method 1 When using metallic screws to mount the sensor head Metallic Fill up the hole with plastic screw Plastic plate 5 or more Mounting stay Use an insulating plastic plate with a thickness of 5 mm or more Though the kind of plastic is not specified plastic that withstands a higher voltage is preferred e g Teflon etc Make a hole in the two places on the plastic plate and insert screws from the bottom surface of the plate to fix the sensor head to the plate Fill up the holes with silicone or other plastic to prevent the head of the screws from coming into contact with the surface of the mounting stay Method 2 When using plastic screws to mount the sensor head Plastic screw ER Plastic plate 5 mm or more Mounting stay Use an insulating plastic plate with a thickness of 5 mm or more Though the kind of plastic is not specified plastic that withstands a higher voltage is preferred e g Teflon etc Do not use the acrylic plastic screws included with the sensor Since they do not provide satisfactory strength the sensor head may be dislocated after mounting SAFETY PRECAUTIONS ON LASER PRODUCT 1 Classification Model LX2 H W LX2 12 W LX2 13
13. g symbols alert you to important messages Be sure to read these messages carefully Failure to follow instructions may lead to injury A WARNING electric shock burn etc A CAUTION Failure to follow instructions may lead to product damage Note Provides additional information on proper operation General Safety precautions At startup and during operation be sure to monitor the functions and performance of the LX2 series We recommend that you take substantial safety measures to avoid any damage in the event a problem occurs Do not open or modify the LX2 series or use it in any way other than described in the specifications When the LX2 series is used in combination with other instruments functions and performance may be degraded depending on operating conditions and the surrounding environment Do not use this product for the purpose to protect a human body or a part of human body This product is not intended for use as explosion proof product Do not use this product in a hazardous location and or potentially explosive atmosphere PRECAUTIONS FOR HANDLING THELX2 W SERIES The LX2 series uses a semiconductor laser diode for the light source When using the sensor be sure to follow the precautions given below Before connecting the sensor head to the controller be sure to turn off the controller s power supply Otherwise noise generated due to chattering at the connection may damage the semiconduc
14. he transmitter and the receiver when viewed from the transmitter to the receiver are designed to be aligned Set the both sides of transmitter and receiver to align to the same plane level Otherwise follow the alignment procedure below Transmitter Receiver Note The resin plate provided with the sensor head is a test jig Note Remove the resin plate from the sensor head before you operate the LX2 ALIGNMENT OF OPTICAL AXIS 3 Alignment procedure LX2 11 W 12 W 13 W If a common reference plane is not available or if fine alignment of the optical axis is required follow the procedure described below 1 Place the laser emitting surface of the transmitter in front of the laser receiving Red LEDs surface of the receiver while the power is ON Then adjust the analog voltage adjustment trimmer GAIN trimmer so Green LEDs that the five green LEDs and one red LED on the level indicator light 2 Next fix the receiver with no object interrupting the optical axis and move the transmitter to the right or left until both red LEDs on the level indicator light Secure the transmitter 3 Readjust the analog voltage adjustment trimmer so that Ka the five green LEDs and one red LED on the level indicator light When the interrupted area of the laser beam is zero 0 that is when full light quantity is received
15. in the instruction manual the user s manual etc Any failure caused by a factor that cannot be foreseen at a scientific technical level at the time when the product has been shipped from KEYENCE Any disaster such as fire earthquake and flood or any other external factor such as abnormal voltage for which we are not liable The warranty scope is limited to the extent set forth in item 1 and KEYENCE assumes no liability for any purchaser s secondary damage damage of equipment loss of opportunities loss of profits etc or any other damage resulting from a failure of our product 3 PRODUCT APPLICABILITY KEYENCE products are designed and manufactured as general purpose products for general industries Therefore our products are not intended for the applications below and are not applicable to them If however the purchaser consults with us in advance regarding the employment of our product understands the specifications ratings and performance of the product on their own responsibility and takes necessary safety measures the product may be applied In this case the warranty scope shall be the same as above Facilities where the product may greatly affect human life or property such as nuclear power plants aviation railroads ships motor vehicles or medical equipment Public utilities such as electricity gas or water services Usage outdoors under similar conditions or in similar environments TN KEYENCE CORPORAT
16. instructions mentioned in this manual Otherwise injury to the human body eyes and skin may result Do not directly look at or touch the laser beam and its reflection from a mirror like surface Do not direct the beam at other people or into areas where other people unconnected with the laser work might be present Becareful of the path of the laser beam Make the laser path as short as possible and be sure to terminate the laser path with a diffusion reflector or diffusion absorber with proper reflectance and thermal characteristics so that the laser beam does not diffuse It is recommended that you install a protective enclosure Install the laser product carefully so that the laser beam is not unintentionally directed at mirror like surfaces Install the products so that the path of the laser beam is not as the same height as that of human eye Wear protective eye goggles appropriate for the laser beam wavelength SAFETY PRECAUTIONS ON LASER PRODUCT 2 Class Il and Class 1 laser products Follow the instructions mentioned in this manual Otherwise injury to the human body eyes and skin may result Do not stare into the beam Do not direct the beam at other people or into areas where other people unconnected with the laser work might be present Becareful of the path of the laser beam If there is a danger that the operator may be exposed to the laser beam reflected by specular or diffuse reflection
17. ter 7 S 24 cable length 1 8 2 5 18 WS 2 03 2 LX2 12 W mounting hole LX2 12 W Receiver Transmitter 13 8 7 W I cable length 1 8 LX2 110 W Receiver LX2 110 W Transmitter 15 6 gt mounting hole 04 2 5 Cable length 1 8 m 18 B sse No 4 cable length 1 8 m 5 2X9 3 2 Na 4 cable length 1 8 m Unit mm Mounting brackets For LX2 11 W 12 W 3 2 x slot A y 2 x slot B 4 54 Slot 4 5 mounting hole Slot B For LX2 110 W 15 6 E Las gt 36 2 gt mounting hole 24 Cable length 1 8 HUE t 1 2 P 19 8 D 13 8 M3 x 25 screw 4 92 Unit mm DIMENSIONS Sensor head Mounting bracket Amplifier LX2 13 W For LX2 13 W LX2 70 W Receiver mounting hole 20 4 44 3 04 5 10 50 A mounting hole Y 2 05 i te 10 44 64 25 Y 2 Us 2 R3 UY 4 cable length 1 8 70
18. the LX2 outputs an analog voltage of 5 00 V The analog voltage adjustment trimmer can be precisely adjusted using a voltmeter across the core wire of the blue cable and the shield cable LX2 110 W 1 Place the transmitter and the receiver at the position desired 2 Adjust the direction of transmitter while checking the laser beam spot focusing on the center of receiving surface of receiver 3 Follow the above procedure 3 in the left Reference distance vs Beam diameter Typical LX2 110 W Transmitter Laser beam 300mm 1000mm 2000mm Approx 1mmdia Approx 1 5 mm dia Approx 2 5 mm dia Analog voltage output vs Interrupted area of laser beam Typical LX2 110 W 5 Knife edge EI Output voltage V 0 1 Interrupted area mm 13 TOLERANCE SETTING Within the detecting area of the sensor head the maximum allowable target size largest allowable interrupted area is specified by the HIGH trimmer and the minimum allowable target size smallest allowable interrupted area is specified by the LOW trimmer 1 HIGH output setting 1 Turn the HIGH trimmer counterclockwise until the HIGH upper limit output indicator goes off 2 Place an object of maximum allowable size in the detecting area 3 Turn the HIGH trimmer clockwise until the HIGH upper limit output indicator just lights 2 LOW output setting 1 Turn the LOW trimmer clockwise until the LOW lower limit output indicator goes off
19. tor laser diode Before performing maintenance or inspection work be sure to turn off the power supply Performing maintenance or inspection work with the power on may damage the sensor Do not install the sensor head where water oil organic solvent etc may splash it Failure to follow this may cause not only unstable measurement but may also damage the sensor head due to entry of the liquid inside the unit Do not install the power supply cable or sensor head cable in the same conduit as high voltage lines or power lines Failure to follow this may cause the sensor to malfunction due to noise interference or may damage the semiconductor laser diode Noise conveyed through the power supply may cause a malfunction or damage In such a case use an insulating transformer for the power supply to stabilize the DC power supply When using a switching regulator be sure to ground the frame ground and ground terminals The sensor head is grounded through its housing Therefore if the sensor head is mounted on a surface to which noise is conveyed the noise may cause the sensor to malfunction or may damage the semiconductor laser diode In such a case insulate the sensor head from the mounting surface For the method for insulating the sensor head from the mounting surface see page 4 Static electricity on the human body or around the sensor head may damage the semiconductor laser diode Pay special attention to prevent
20. trol terminals Laser beam emission will stop when these terminals are open circuited Laser radiation emission warning Lights when the laser beam is being emitted or is about to be emitted This LED does not turn off while power is being supplied by the amplifier Beam attenuator CONNECTIONS Red Black 0 V T 12 to 24 VDC White HI LO Control output GND Analog voltage output Shield 0 Syncronous input LX2 70 Receiver __________ R Yellow lt or P lt T O Transmitter Laser beam will be emitted when the connection between terminals 1 and is short circuited e Laser beam emission will stop when the connection between terminals 1 and is open e Short circuiting the yellow timing input and black 0 V lines will forcibly turn the control output white gray and green lines OFF Note The black 0 V and shielded 0 V wires have a different electrical 016 potential The green GND wire is also isolated from both 0 V wires To avoid a malfunction due to excessive noise interference do not connect any two of these wires LX2 70 W em LX2 70W Transmitter White Gray GND Green 0 V Black
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