Photoelectric switches WLL 170(T), fibre-optic cables LL 3: flexible solutions with fibre-optic cable systems

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1 WLL 0(T) Photoelectric switches Photoelectric switches with fibre-optic cable Proximity mode Photoelectric switches with fibre-optic cable Through-beam mode Photoelectric switches WLL 0(T), fibre-optic cables LL : flexible solutions with fibre-optic cable systems FFibre-optic sensors without baggage. Safe and simple switching: The combination of photoelectric switches WLL 0(T) and fibreoptic cables LL offers extremely simple handling and intelligent system options for a wide range of applications. For standard applications, but also for demanding applications such as detection of very small objects, recognition of colour marks or transparent materials. You choose: Suitable WLL 0(T) versions, optimised for various typical uses, are available WLL 0T with teach-in: This teach-in version simplifies handling: the switching threshold and switching hysteresis are automatically set, via a push button (Teach-in). Sender LED red or green light: Selects the most suitable emitted light for optimum detection of colour contrasts. WLL 0- with manual switching threshold adjustment: The cost-effective solution for all standard applications. WLL 0 High Speed: 0,000 switching operations per second - the optimum for high speed applications. WLL 0A with analogue output: For easy measurement and control. Large selection of suitable fibreoptic cables: Fibre-optic cable range LL. For WLL 0, there are around 0 LL versions, offering maximum flexibility and choice for your requirements. Typical uses for these WLL 0 / LL fibre-optic cable combinations: semiconductor industry, electronics assembly, packaging technology, handling and assembly systems, special-purpose machinery, construction and precision engineering. SENSICK CATALOGUE

2 WLL 0(T) n In pick-and-place systems, WLL 0(T) photoelectric switches with LL plastic fibre-optic cables are used in a wide variety of configurations to monitor the presence or position of minute objects. b Fibre-optic cables are widely used in the electronics industry. For example, fibre-optic cables with integrated 0 angle used for detecting contact pins in locations where space is restricted. v WLL 0(T) units with red or green transmission light and LL plastic fibreoptic cables for detecting print marks used to control labelling machines. m LL fibre-optic cables for special applications: here LL cables with Teflon jacket are the right choice for harsh environments (i.e. contact with acids, alkaline solutions, detergents or oils) SENSICK CATALOGUE

3 WLL 0-, red light, manual sensitivity adjustment - DC Scanning range mm Through-beam mode Proximity mode Scanning distance mm Dimensional drawing. ø.. Sender LED red for standard applications anual sensitivity adjustment Simple installation and alignment.. ~ ø Adjustments possible in ax SENS. 0 DLY L. D. Sender LED, installation of LL fibre-optic cable (sender fibre) Receiver, installation of LL fibre-optic cable (receiver fibre) Protective hood, can be raised at both ends ounting bracket, included with delivery (see Accessories) Connector Indication of correct fibre-optic cable mounting Indicator LED orange: lights up when switching output is active LED signal strength indicator green, lights up when light received < 0. or >. (switching threshold = ) Sensitivity scale 0 0 Sensitivity control (0 revolutions) Selector switch for delay: DLY (=) /, 0 ms fixed Selector switch: L. (light switching) / D. (dark switching) Connection type WLL0-N WLL0-P WLL0-N0 WLL0-P0 WLL0-N0 WLL0-P0 See chapter Accessories Connector,, -pin Connector,, -pin Fibre-optic cable Tip adapters ounting systems x 0. mm² brn blu blk L+, -pin, -pin NC 0 SENSICK CATALOGUE

4 WLL 0- Technical data WLL0- N N0 N0 P P0 P0 Operating distance mm ) Fibre-optic cable (proximity system): LL-DK0 Adjustment of operating distance Poti, 0 revolutions ) Scanning range max. typ. Fibre-optic cable (through-beam system) Operating range, recommended Fibre-optic cable (through-beam system) 0...,000 mm LL-TB0 and tip adapter LL-TA mm LL-TB0 Sensitivity adjustment Poti, 0 revolutions ) Light source, light type LED, red light, 0 nm ) Light spot diameter Angle of dispersion Depends on scanning range Supply voltage V s V DC ) Residual ripple 0 % ) Power consumption 0 ma ) Switching outputs Switching mode Output current I a max Approx. see LL fibre-optic data NPN: open collector: PNP: open collector: Light/dark switching, switchable 00 ma Response time 0. ms ) Switching frequency,000 Hz ) Time delay 0 ms fix, selectable by sliding switch Time type Off delay t Connection type Cable, Ø. mm, PVC, m ) VDE protection class Connector,, -pin Connector,, -pin Circuit protection V s connections reverse-polarity protected / In-/outputs short-circuit protected / Interference pulse suppression / Outputs overcurrent and short-circuit protected Enclosure rating IP 0) Ambient temperature operation - C... + C Ambient temperature storage -0 C C Weight Approx. 0 g Housing material ABS/PC ) Object with 0 % remission (based on standard white to DIN 0) ) Sensitivity scale 0 ) Average service life 00,000 h at T a = + C ) Limit values ) may not exceed or fall short of V s tolerances ) without load ) Signal transit time with resistive load ) with light/dark ratio : ) do not bend below 0 C 0) with correctly attached fibre-optic cable LL and closed protection hood Function diagram for WLL 0- WLL 0- Orange LED display: lights up when switching output is active. Dependent on setting of light/ dark selector switch Light received >. Switching threshold () Light received < 0. Green LED display: lights up when light received is < 0. or >. (based on the switching threshold, switching threshold = ). Switching output (light-switching) t 0 ms Switching output (dark-switching) Indicator LED, green Ordering information Type Order no. WLL0-N 0 WLL0-N0 0 WLL0-N0 0 WLL0-P 0 WLL0-P0 0 WLL0-P SENSICK CATALOGUE

5 WLL 0-, green light, manual sensitivity adjustment - DC Scanning range mm Through-beam mode Proximity mode Scanning distance 0... mm Dimensional drawing. ø.. Sender LED green for standard applications and print mark recognition anual sensitivity adjustment Simple installation and alignment.. ~ ø Adjustments possible in ax SENS. 0 DLY L. D. Sender LED, installation of LL fibre-optic cable (sender fibre) Receiver, installation of LL fibre-optic cable (receiver fibre) Protective hood, can be raised at both ends ounting bracket, included with delivery (see Accessories) Connector Indication of correct fibre-optic cable mounting Indicator LED orange: lights up when switching output is active LED signal strength indicator green, lights up when light received < 0. or >. (switching threshold = ) Sensitivity scale 0 0 Sensitivity control (0 revolutions) Selector switch for delay: DLY (=) /, 0 ms fixed Selector switch: L. (light switching) / D. (dark switching) Connection type WLL0-N WLL0-P WLL0-N0 WLL0-P0 WLL0-N0 WLL0-P0 See chapter Accessories Connector,, -pin Connector,, -pin Fibre-optic cable Tip adapters ounting systems x 0. mm² brn blu blk L+, -pin, -pin NC SENSICK CATALOGUE

6 WLL 0- Technical data WLL0- N N0 N0 P P0 P0 Operating distance 0... mm ) Fibre-optic cable (proximity system): LL-DK0 Adjustment of operating distance Poti, 0 revolutions ) Scanning range max. typ. Fibre-optic cable (through-beam system) Operating range, recommended Fibre-optic cable (through-beam system) 0...,00 mm LL-TB0 and tip adapter LL-TA mm LL-TB0 Sensitivity adjustment Poti, 0 revolutions ) Light source, light type LED, green light, 0 nm ) Light spot diameter Angle of dispersion Depends on scanning range Supply voltage V s V DC ) Residual ripple 0 % ) Power consumption 0 ma ) Switching outputs Switching mode Output current I a max Approx. see LL fibre-optic data NPN: open collector: PNP: open collector: Light/dark switching, switchable 00 ma Response time 0. ms ) Switching frequency,000 Hz ) Time delay 0 ms fix, selectable by sliding switch Time type Off delay t Connection type Cable, Ø. mm, PVC, m ) VDE protection class Connector,, -pin Connector,, -pin Circuit protection V s connections reverse-polarity protected / In-/outputs short-circuit protected / Interference pulse suppression / Outputs overcurrent and short-circuit protected Enclosure rating IP 0) Ambient temperature operation - C... + C Ambient temperature storage -0 C C Weight Approx. 0 g Housing material ABS/PC ) Object with 0 % remission (based on standard white to DIN 0) ) Sensitivity scale 0 ) Average service life 00,000 h at T a = + C ) Limit values ) may not exceed or fall short of V s tolerances ) without load ) Signal transit time with resistive load ) with light/dark ratio : ) do not bend below 0 C 0) with correctly attached fibre-optic cable LL and closed protection hood Function diagram for WLL 0- WLL 0- Orange LED display: lights up when switching output is active. Dependent on setting of light/ dark selector switch Light received >. Switching threshold () Light received < 0. Green LED display: lights up when light received is < 0. or >. (based on the switching threshold, switching threshold = ). Switching output (light-switching) t 0 ms Switching output (dark-switching) Indicator LED, green Ordering information Type Order no. WLL0-N 0 WLL0-N0 0 WLL0-N0 0 WLL0-P 0 WLL0-P0 0 WLL0-P SENSICK CATALOGUE

7 WLL 0-, High Speed - DC Scanning range mm Through-beam mode Proximity mode Scanning distance 0... mm Dimensional drawing. ø.. High speed 0,000/sec., for extremely fast processes Sender LED red anual sensitivity adjustment Time delay 0 ms for signal extension... ~0 ø Adjustments possible in ax SENS. 0 DLY L. D. Sender LED, installation of LL fibre-optic cable (sender fibre) Receiver, installation of LL fibre-optic cable (receiver fibre) Protective hood, can be raised at both ends ounting bracket, included with delivery (see Accessories) Connector Indication of correct fibre-optic cable mounting Indicator LED orange: lights up when switching output is active LED signal strength indicator green, lights up when light received < 0. or >. (switching threshold = ) Sensitivity scale 0 0 Sensitivity control (0 revolutions) Selector switch for delay: DLY (=) /, 0 ms fixed Selector switch: L. (light switching) / D. (dark switching) Connection type WLL0-N WLL0-P WLL0-N0 WLL0-P0 WLL0-N0 WLL0-P0 See chapter Accessories Connector,, -pin Connector,, -pin Fibre-optic cable Tip adapters ounting systems x 0. mm² brn blu blk L+, -pin, -pin NC SENSICK CATALOGUE

8 WLL 0- Technical data WLL0- N N0 N0 P P0 P0 Operating distance 0... mm ) Fibre-optic cable (proximity system): LL-DB0 Adjustment of operating distance Poti, 0 revolutions ) Scanning range max. typ. Fibre-optic cable (through-beam system) Operating range, recommended Fibre-optic cable (through-beam system) 0...,00 mm LL-TB0 and tip adapter LL-TA mm LL-TB0 Sensitivity adjustment Poti, 0 revolutions ) Light source, light type LED, Red light, 0 nm ) Light spot diameter Angle of dispersion Depends on scanning range Supply voltage V s V DC ) Residual ripple 0 % ) Power consumption 0 ma ) Switching outputs Switching mode Output current I a max Approx. see LL fibre-optic data NPN: open collector: PNP: open collector: Light/dark switching, switchable 00 ma Response time 0 µs ) Switching frequency 0,000 Hz ) Time delay 0 ms fix, selectable by sliding switch Time type Off delay t Connection type Cable, Ø. mm, PVC, m ) VDE protection class Connector,, -pin Connector,, -pin Circuit protection V s connections reverse-polarity protected / In-/outputs short-circuit protected / Interference pulse suppression / Outputs overcurrent and short-circuit protected Enclosure rating IP 0) Ambient temperature operation - C... + C Ambient temperature storage -0 C C Weight Approx. 0 g Housing material ABS/PC ) Object with 0 % remission (based on standard white to DIN 0) ) Sensitivity scale 0 ) Average service life 00,000 h at T a = + C ) Limit values ) may not exceed or fall short of V s tolerances ) without load ) Signal transit time with resistive load ) with light/dark ratio : ) do not bend below 0 C 0) with correctly attached fibre-optic cable LL and closed protection hood Function diagram for WLL 0- WLL 0- Orange LED display: lights up when switching output is active. Dependent on setting of light/ dark selector switch Light received >. Switching threshold () Light received < 0. Green LED display: lights up when light received is < 0. or >. (based on the switching threshold, switching threshold = ). Switching output (light-switching) t 0 ms Switching output (dark-switching) Indicator LED, green Ordering information Type Order no. WLL0-N 0 WLL0-N0 0 WLL0-N0 0 WLL0-P 0 WLL0-P0 0 WLL0-P SENSICK CATALOGUE

9 WLL 0A, red light, analogue DC Scanning range mm Through-beam systems Dimensional drawing R. -R. Scanning distance mm. Proximity systems Analogue output voltage... V Large range of suitable LL fibre-optic cables Ideal for more complex requirements, e.g. positioning tasks, turbidity/transmission measurement, contrast resolution. ø. approx R approx Adjustments possible WLL 0A-V WLL 0A-V0 WLL 0A-V0 in ax SENS ms 0 ms Sender LED, installation of LL fibre-optic cable (sender fibre) Receiver, installation of LL fibre-optic cable (receiver fibre) Protective hood: can be raised at both ends, removable ounting bracket, included (see Accessories) : analogue output with saturation ( V) LED signal strength indicator, green: lights up when light received Sensitivity scale, min./max. = 0 Sensitivity control (min./max. = revolutions) Selector switch for analogue output response time Connection types WLL 0A-V0 WLL 0A-V0 WLL 0A-V See chapter Accessories Cables and connectors ounting systems Fibre-optic cables -pin, brn blu blk... V -pin, brn blu blk wht... V NC l mm brn blu blk L+... V SENSICK CATALOGUE

10 WLL 0A Technical data WLL 0T- V V 0 V0 Suitable fibre-optic cable LL plastic fibre-optic cables Scanning range ) Depends on fibre-optic cable used Recommended operating ranges ) max mm (through-beam syst.) (with tip adapters mm) Recommended operating distance ) max mm ) (proximity system) Light source ), light type LED, visible red light Light spot diameter of LL Depends on scanning range Disp. angle of LL fibre-optic cable Approx. ) Supply voltage V ) S V DC Ripple ) 0% Current consumption ) 0 ma Analogue output Voltage output... V V = no light received V = saturation Load current (max.) 0 ma Output resistance (Ri) Ω Load resistance kω (recommended) Response time, selectable ) ms/0 ms Sensitivity, adjustable Potentiometer, turns ) Connection types cable 0) PVC, m; x 0. mm, l.0 mm plug, -pin plug, -pin Cable extension max. 00 m; signal loss to be expected Circuit protection ) A, C, D VDE protection class Enclosure rating IP 0 Ambient temperature T A Operation C...+ C Storage 0 C...+0 C Weight with cable Approx. 0 g with plug Approx. 0 g Housing material ABS ) See Accessories; selection table for LL fibre-optic cables ) Object with 0 % remission (based on standard white to DIN 0) ) Average service life 00,000 h at T A = + C ) Deviations, see data for LL ) Limit values ) ay not exceed or fall short of V S tolerances ) Without load ) Delay time: change in received light/ change in analogue output, (0 % of upper range value) ) Scale 0 0) Do not bend below 0 C ) A = V S connections reverse-polarity protected C = Interference pulse suppression D = Outputs overcurrent and shortcircuit protected Analogue output (V) WLL 0A, analogue, typical curves V SENS. max. WLL 0A LL-TB0 Analogue output (V) V SENS. max. WLL 0A LL-DB0 Order information Type WLL 0A-V WLL 0A-V0 WLL 0A-V0 Order no SENS. / SENS. / 0 (mm) Scanning range (mm) 0 (mm) Scanning distance (mm) SENSICK CATALOGUE

11 WLL 0T, red light, teach-in DC Scanning range mm Through-beam systems Dimensional drawing R. -R. Scanning distance mm. Proximity systems Red sender LED For standard applications and mark recognition Easy alignment and commissioning by teach-in. ø. approx R approx Adjustments possible WLL 0T-P WLL 0T-P0 WLL 0T-N WLL 0T-P 0 WLL 0T-N 0 DLY L. D. SET RUN 0 WLL 0T-N0 0 LED sender, installation of LL fibre-optic cable (sender fibre) Receiver, installation of LL fibre-optic cable (receiver fibre) Protective hood, can be raised at both ends, removable ounting bracket, included (see Accessories) Orange LED indicator, lights up when switching output is active Green LED reception indicator, lights up when light received is < 0. or >. (switching threshold = ) delay selector switch: DLY (on)/, 0 ms fixed Selector switch: L. (light-switching)/ D. (dark-switching) Operating mode selector switch: SET (Teach-in mode)/ RUN (sensor mode) Teach-in push button Connection types WLL 0T-P 0 WLL 0T-N 0 WLL 0T-P0 WLL 0T-N0 WLL 0T-P WLL 0T-N See chapter Accessories Cables and connectors ounting systems Fibre-optic cables -pin, -pin, NC l mm brn blu blk L+ SENSICK CATALOGUE

12 WLL 0T Technical data WLL 0T- P P 0 P0 N N 0 N0 Suitable fibre-optic cable LL plastic fibre-optic cables Scanning range Dependent on fibre-optic cable used Recommended operating ranges mm (through-beam system) (with auxiliary lens mm) Recommended operating distance mm ) (proximity system) Sensitivity setting Automatically, by Teach-in button ode switch at pos. SET ) ode selector switch position SET Teach-in button active position RUN Teach-in button inactive ) Light source ), light type LED, visible red light Light spot diameter LL Dependent on scanning range Dispersion angle LL fibre-optic cable Approx. ) Supply voltage V ) S V DC Ripple ) 0% Current consumption ) 0 ma Switching outputs PNP: open collector: NPN: open collector: Output current I A max. 00 ma Light receiver, switching type Dark-/light-switching ) Response time 0) 0. ms Switching frequency max. ) 000/s Time delay t ( delay) 0 ms fix, selectable by sliding switch Connection types cable ) PVC, m; x 0. mm, l.0 mm plug, -pin plug, -pin Circuit protection ) A, B, C, D VDE protection class Enclosure rating IP 0 Ambient temperature T A Operation C...+ C Storage 0 C...+0 C Weight with cable m Approx. 0 g with plug, -pin/-pin Approx. 0 g Housing material ABS ) Object with 0 % remission (based on standard white to DIN 0) ) Teach-in active ) Equipment in sensor mode ) Average service life 00,000 h at T A = + C ) See LL data for deviations ) Limit values ) ay not exceed or fall short of V S tolerances ) Without load ) By sliding switch 0) With light/dark ratio : without time delay ) With resistive load ) Do not bend below 0 C ) A = V s connections reverse-polarity protected B= Inputs/outputs reverse-polarity protected C = Interference suppression D= Outputs overcurrent and short-circuit protected Function diagram WLL 0T Standard WLL 0T in sensor mode Operating mode selector switch in RUN mode (after setting the switching threshold by means of Teach-in). Orange LED display: lights up if switching output is active. Dependent on setting of light/ dark selector switch. Green LED display: lights up if light received is < 0. or >. (based on the switching threshold, switching threshold = ). LED display in Teach-in mode: see Teach-in page t 0 ms Light received >. Switching threshold () Light received < 0. Switching output (light-switching) Switching output (dark-switching) Order information Type WLL 0T-P WLL 0T-P 0 WLL 0T-P0 WLL 0T-N WLL 0T-N 0 WLL 0T-N0 Order no Indicator LED, green SENSICK CATALOGUE

13 WLL 0T, green light, mark sensors DC Scanning range mm Through-beam systems Dimensional drawing R. -R. Scanning distance 0... mm. Proximity systems Green sender LED Ideal for recognition of red marks, contrasts or parts Commissioning by teach-in. ø. approx. 00 approx R Adjustments possible WLL 0T-P WLL 0T-P0 WLL 0T-N WLL 0T-P 0 WLL 0T-N 0 DLY L. D. SET RUN 0 WLL 0T-N0 0 LED sender, installation of LL fibre-optic cable (sender fibre) Receiver, installation of LL fibre-optic cable (receiver fibre) Protective hood, can be raised at both ends, removable ounting bracket, included in delivery (see Accessories) Orange LED indicator, lights up when switching output is active Green LED reception indicator, lights up when light received is < 0. or >. (switching threshold = ) delay selector switch: DLY (on)/, 0 ms fixed Selector switch: L. (light-switching)/ D. (dark-switching) Operating mode selector switch: SET (Teach-in mode)/ RUN (sensor mode) Teach-in push button Connection types WLL 0T-P 0 WLL 0T-N 0 WLL 0T-P0 WLL 0T-N0 WLL 0T-P WLL 0T-N See chapter Accessories Cables and connectors ounting systems Fibre-optic cables -pin, -pin, NC l mm brn blu blk L+ 0 SENSICK CATALOGUE

14 WLL 0T Technical data WLL 0T- P P 0 P 0 N N 0 N 0 Suitable fibre-optic cable LL plastic fibre-optic cables Scanning range Dependent on fibre-optic cable used Recommended operating ranges mm (through-beam system) (with auxiliary lens mm) Recommended operating distance 0... mm ) (proximity system) Sensitivity setting Automatically, by Teach-in button ode switch at pos. SET ) Additional fine alignment, manual Optional ) Black & white resolution ) grey levels ode selector switch position SET Teach-in button active position RUN Teach-in button inactive ) Light source ), light type LED, visible green light Light spot diameter LL Dependent on scanning range Dispersion angle LL fibre-optic cable Approx. ) Supply voltage V ) S VDC Ripple ) 0 % Current consumption ) 0 ma Switching outputs PNP: open collector: NPN: open collector: Output current I A max. 00 ma Light receiver, switching type Dark/light switching 0) Response time ) 0. ms Switching frequency max. ) 000/s Time delay t ( delay) 0 ms fix, selectable by sliding switch Connection types cable ) PVC, m; x 0. mm, l.0 mm plug, -pin plug, -pin Circuit protection ) A, B, C, D VDE protection class Enclosure rating IP 0 Ambient temperature T A Operation C...+ C Storage 0 C...+0 C Weight with cable m Approx. 0 g with plug, -pin Approx. 0 g Housing material ABS ) Object with 0 % remission (based on standard white to DIN 0) ) Teach-in active ) With LL -DT0 proximity fibre-optic cable, scanning distance mm ) Equipment in sensor mode ) Average service life 00,000 h at T A = + C ) See LL data for deviations ) Limit values ) ay not exceed or fall short of V S tolerances ) Without load 0) By sliding switch ) With light/dark ratio : without time delay ) With resistive load ) Do not bend below 0 C ) A=V s connections reverse-polarity protected B = Inputs/outputs reverse-polarity protected C = Interference suppression D = Outputs overcurrent and shortcircuit protected Function diagram WLL 0T standard WLL 0T in sensor mode Operating mode selector switch in RUN mode (after setting the switching threshold by means of Teach-in). Orange LED display: lights up if switching output is active. Dependent on setting of light/ dark selector switch. Green LED display: lights up if light received is < 0. or >. (based on the switching threshold, switching threshold = ). LED display in Teach-in mode: see Teach-in page t 0 ms Light received >. Switching threshold () Light received < 0. Switching output (light-switching) Switching output (dark-switching) Order information Type Order no. WLL 0T-P 0 WLL 0T-P 0 0 WLL 0T-P WLL 0T-N 0 WLL 0T-N 0 0 WLL 0T-N 0 0 Indicator LED, green SENSICK CATALOGUE

15 WLL 0T Photoelectric switches with fibre-optic cable, Teach-in Functions Teach-in button Sensitivity adjustment by pressing a button. No special photoelectric switch knowledge necessary. Only active when ODE selector switch is in the SET position (manipulation protection). Switching selector switch L.: light-switching. D.: dark-switching. Either in NPN or PNP. Connection type Either, -pin/-pin equipment plug or m connection cable. Teach-in mode selector switch Separate from other operating mode selector switches, therefore simple to operate, no double functions. SET : WLL 0T in manual Teach-in mode. Optimum switching point setting by simply pressing a botton (once or twice). RUN : The taught-in switching threshold and switching hysteresis are saved in the EEPRO. Accidental change of the taught-in parameter is not possible. After seconds the WLL 0T operates in the sensor mode. The saved Teach-in values are retained for an unlimited period of time even if the voltage is interrupted for a longer time. delay t off For switching output. Also switchable, 0 ms fixed. Enables the control unit to detect very short events. Protective hood Both sides can be opened up, easy to remove. Easy locking. Also used to check correct fibreoptic cable locking (protective hood cannot be shut otherwise). ounting system WLL 0T ounting by simply clipping onto profile mounting rail. (ounting bracket included in delivery). LED indicators orange, green Teach-in mode: Signalling Teach-in sequence Constantly flashing: Teach-in error Constantly lit: Teach-in OK. Sensor mode: Orange LED: switching output active Green LED: receiver signal >. or < 0.; (switching threshold = ). Sender LED: Either red or green LED (see selection table) Red LED: Ideal for all standard applications (high transmission power, large ranges), also for mark detection. Warning: not possible to detect red marks with red light. Green LED: Ideal for recognition of red marks. μ-prozessor controlled, with EEPRO: Permanent retention of taught-in switching threshold and hysteresis even if voltage is interrupted for a longer period of time. Snap-in connector for fibre-optic cable Fibre-optic cable mounting Release fibre-optic cable: snap closure in horizontal position. Insert the fibre-optic cable. Lock the fibre-optic cable: closure in vertical position. Removing fibre-optic cable Release the fibre-optic cable: put the snap closure in a horizontal position. Pull out the fibre-optic cable. Fibre-optic cable receptacle fibre-optic cable (sender). fibre-optic cable (receiver). Suitable fibre-optic cable: LL series plastic fibre-optic cable (see description of the many LL variants). SENSICK CATALOGUE

16 WLL 0T, Teach-in handling. Accurate sensitivity setting (by pressing button twice); WLL 0T Teach-in steps Positioning the object in the light path Proximity Through-beam Proximity Through-beam system system system system START Teach-in Parts in light path Remove parts from light path Reset: STOP Sensor mode anual Teach-in SET Press Teach-in button > s Press Teach-in button > s SET RUN RUN ode switch in SET position Press Teach-in button > sec Orange LED indicator lights Press Teach-in button > sec Green LED indicator lights ode switch in RUN position This operating mode is suitable for all applications: large ranges, precise switching points, low hysteresis, transparent objects and contrast marks. The WLL 0T automatically optimizes the switching threshold and hysteresis by means of a μ-processor and saves these values permanently in the EEPRO. No special experience with opto-electronic components is necessary. The Teach-in button is pressed twice. Applications: Through-beam system: All standard applications, even thin and transparent objects are detected. Proximity system: All standard applications, strong background interference, small or dark target objects, simple marks with contrast differences.. Accurate positioning of parts or switching positions (by pressing button once); WLL 0T Teach-in steps Positioning the object in the light path Proximity system Through-beam system START Teach-in Parts accurately positioned in light path Reset: STOP Sensor mode anual Teach-in SET Press Teach-in button > s SET RUN RUN ode switch in SET position Press Teach-in button>sec, orange LED indicator lights ode switch in RUN position This operating mode is particulary suitable for accurate positioning tasks. After positioning the object in the desired switching position, the WLL 0T automatically optimizes the switching threshold and hysteresis by means of a μ-processor and saves the values permanently in the EEPRO: No special experience with opto-electronic components is necessary. The Teach-in button is pressed once. Applications: Through-beam system: Accurate positioning of parts. Proximity system: Accurate positioning of parts, positioning of contrast marks SENSICK CATALOGUE