704555 / 03 06 / 2015 Original operating instructions
Contents
1. Products Accessories SN SN SN SN SN SN SN SN SN NS TIMI SIMI 1 SIMI 14 11111411 VIII 14 VIIA 14114 gt Let the test object enter the protected area and move it slightly downwards First of all in the centre and then close to the transmitter and the receiver gt Make sure that the red LED on the receiver is continuously lit during the move ment in the protected area Observe the notes on installation of the safety light curtains light grids 14 Maintenance repair and disposal Notes on set up 17 1 Check list 27 11 Scale drawing 11 1 safety light curtain T transmitter 1 LED 3 colours red green orange R receiver 2 LED yellow L total length 3 LED 2 colours red green 28 11 2 safety light grid T transmitter 1 LED 3 colours red green orange R receiver 2 LED yellow L total length 3 LED 2 colours red green available lengths 12 Technical data 29 12 Technical data 12 1 Safety light curtains light grids type 2 Conforms to the requirements of Type 2 IEC 61496 1 2012 SILcl 1 IEC 62061 2005 ISO 13849 1 2006 category 2 PL c Electrical design DC PNP Operating voltage 24 DC 19 2 28 8 Current consumption Transmitter 42 Receiver mA 83 Outputs OSSDs Max current load per output mA Power on delay time Mission time Ty Test interval T1 years M Vibration Shock Ambient temperature C Max perm relative air humidity2. Applications Class C to EN 60654 1 weatherproof application Protection IP 65 IP 67 III Housing material Type of light Infrared light 950 nm Display LED yellow LED green LED red Connection Transmitter M12 Receiver M12 Max cable length m for wire cross section 0 34 mm et st fs a aaar m 30 12 1 1 Safety light curtains 30 mm resolution 80 80 80 80 92 4 92 2 92 0 91 8 91 7 80 2 ao N o ao co lt q LO co Oo o gt gt 4 Total length L rri 363 513 663 813 963 1113 1263 1413 Protected area eight Immi 310 460 610 760 o10 1060 1210 13 AAAA FRE ii 12 1 4 Safety light curtains 90 mm resolution Total length L mm Protcedareaheightimmi 610 760 910 Responsetime ms 4 45 5 1263 1413 1563 N S O 1563 1210 1360 o N a 3 3 O O s 1360 93 5 93 2 93 0 92 8 92 6 92 4 80 80 80 80 80 80 2 2 2 2 2 2 32 12 2 Safety light curtains light grids type 4 Conforms to the requirements of Type 4 IEC 61496 1 2012 SILcl 3 IEC 62061 2005 ISO 13849 1 2006 category 4 PL e Electrical design DC PNP Operating voltage 24 DC 19 2 28 8 Current consumption Transmitter 4 Receiver mA 83 2 Applications Class C to EN 60654 1 weatherproof application Protection Connection Transmitter M12 Receiver M12 for wire cross section 0 34 mm 33 12 2 1 Safety light curtai
3. Ce SSI NN SN NS NN A hazardous area S min safety distance H height G reference level If due to the special configuration of the machine it should be possible to reach the hazardous area from above the highest light beam of the safety light curtain should be at a height H measured from the reference level G whose value is determined to the specifications in ISO 13855 12 6 3 2 Safety light curtains resolutions 50 mm and 90 mm safety light grids 2 3 and 4 beams ER E These versions are suitable for access prevention for bodies or N M parts of bodies 1 They must not be used for finger or hand protection The minimum safety distance S is determined using the following formula S 1600 t t 850 The height H1 of the upper light beam measured from the p reference level G must not be shorter than 900 mm while the height H2 of the lowest light beam must not exceed 300 mm ISO 13855 Ree EE EE EE G02444444444224 A hazardous area S min safety distance Hx height G reference level 13 6 4 Horizontal installation of the safety light curtains e These versions are suitable for primary guarding for bodies or parts of EMA bodies With horizontal installation it has to be noted that the distance between the outer border of the hazardous area A and the outer light beam of the safety light curtain is greater than or equal to the minimum safety distance S It is calculated as f
4. a a a 20 1 1 Wining diagram ATANSMINER snn nuances 20 7 1 1 Configuration protected area width range 20 F2 Miimg diagram TECENVET Sa eme 21 SODOMIE a E ES 22 8 1 Automati OPC TANOM nan mme eaaa aaa A iaaa R A 23 eZ MANUAlOD TAIOME Sas E nn te 23 8 3 Connection of external contactors K1 and K2 ou ceceesstseecssseeeeeeseseeeees 24 KEE a oa A E E a cee ree mere re 24 84 1 intemal test FUNCION cccccsc mme one 24 9 Operating and display elements 25 2 EDS a me rere 25 ORS eG E a a at a eee a 26 10 1 Switching state of the outputs 26 10 1 1 The SNCs staf seiis reia 26 19 1 The SWitthed Stale en a 26 10 2 Functional test of the safety light curtains light grids cceseeeeees 27 SE NS ene ie tence ny ree Wc Saey NON AI se T2 saiet ION CNG RSR ee FZ VECO Ue a E A E N A 12 1 Safety light curtains light grids type 2 12 1 1 Safety light curtains 30 mm resolution 12 1 2 Safety light curtains 40 mm resolution 12 1 3 Safety light curtains 50 mm resolution 12 1 4 Safety light curtains 90 mm resolution 12 1 5 Safety light grids 2 3 and 4 beams ceseeestseeeseeteeseeeeeeeee 12 2 Safety light curtains light grids type 4 12 2 1 Safety light curtains 30 mm resolution 12 2 2 Safety light curtains 40 mm resolution 12 2 3 Safety light curtains 50 mm resolution 12 2 4 Safety light curtains 90 mm resolution 12 2 5 Safety light
5. e up to a total length of 1263 mm 4 angle brackets 4 slot nuts with M5 thread and suitable nuts e starting with 1263 mm total length 6 angle brackets 6 slot nuts with M5 thread and suitable nuts e 1 copy operating instructions photoelectric safety sensors reference no 704555 If one of the above mentioned components is missing or damaged please contact UK one of the ifm branch offices 4 Functions and features transmitter T receiver R P protected area protected area width range H protected area height The OY safety light curtains light grids are multi beam optoelectronic safety devices to IEC 61496 and consist of one transmitter and one receiver The safety light curtains light grids comply with the requirements in IEC 62061 2005 and ISO 13849 1 2006 12 Technical data The safety light curtains light grids are T V S d certified 5 Function The protected area P is generated between the transmitter and the receiver and is defined by the protected area height H and the protected area width range I The protected area height is the height protected by the safety light curtain safety light grid It depends on the design 12 Technical data If the safety light curtains light grids are installed horizontally this value indicates the depth of the protected area The protected area width range is the maximum distance between transmitter and receiver 12 Technical data I
6. grids 2 3 and 4 beams cesseeeetseeeseetseeseeeeeeeen 1o OUI SMO UAC ccsnsote da on am ao 36 13 1 Fault diagnosis transmitter sine 36 13 2 Fault diagnosis TOC den aie ons 31 14 Maintenance repair and disposal 38 15 Approvals standards 38 16 Teimns and ADDM VIAIONS connaitre 39 17 ANNEX sissnrssscsmnresiarenecrnssncessnnsncanenensnnenatesanmteesinecsnasntennennnarenielianennciasannes 40 17 1 Check liSt c cccccccccscccccesccccecscccessccceseecceuecccuauecenseeeceueeeceusuecsureseeenreeseans 40 1 Preliminary note The instructions are part of the unit They are intended for authorised persons ac cording to the EMC and low voltage directives and safety regulations The instructions contain information about the correct handling of the product Read the instructions before use to familiarise yourself with operating conditions installation and operation Adhere to the safety instructions 1 1 Symbols used gt Instruction gt Reaction result Designation of pushbuttons buttons or indications Cross reference Important note Non respect can result in malfunctions or interference Information Supplementary note ET Access prevention body protection 1 2 Warning signs used A WARNING Warning of serious personal injury Death or serious irreversible injuries may result 2 Safety instructions e Follow the operating instructions e In case
7. of non observance of notes or standards specially when tampering with and or modifying the unit any liability and warranty is excluded e The unit must be installed connected and put into operation by a qualified electrician trained in safety technology e The applicable technical standards for the corresponding application must be complied with e For the installation the standards EN 60204 EN 999 and ISO 13855 have to be LE observed e Incase of malfunction of the unit please contact the manufacturer Tampering with the unit is not allowed e Disconnect the unit externally before handling it Disconnect all relay load circuits that are supplied independently e After setup the system has to be subjected to a complete function check e Only use the unit under the specified operating conditions 12 Technical data In case of special operating conditions please contact the manufacturer e Incase of any questions concerning safety if required contact the safety expert in charge of your country A WARNING In case of improper handling of the product the safety and physical integ rity of operators and machinery cannot be guaranteed Death or serious irreversible injuries may result gt Obseve all notes on installation and handling in these instructions gt The photoelectric safety sensors must only be used under the specified oper ating conditions and in accordance with use as prescribed below 2 1 Safety rel
8. red 2 consecutive Faulty connection Check connections pins 2 and 4 pulses pin 2 4 red 3 4 consecutive Internal fault Send device to ifm branch office for repair pulses 36 13 2 Fault diagnosis receiver Troubleshooting red 2 consecutive Wrong configuration Check connections pulses red 3 consecutive Feedback external Check connection pin 4 pulses contactor missing red 4 consecutive Interfering transmit Find interfering transmitter and take one pulses ter detected of the following measures Reduce the range of the interfering transmitter from high to low Exchange position of transmitter and receiver Change location of the interfering transmitter so that the receiver is not influenced Screen the beams coming from the interfering transmitter using a mat protective device red 5 consecutive Fault Check connections pulses OSSD outputs lf the defect remains send device to ifm branch for repair red 6 7 consecutive Internal fault Send device to ifm branch office for pulses repair yellow Weak signal Check alignment of transmitter and receiver Clean front pane check range Waiting for restart pulse 37 14 Maintenance repair and disposal e Maintain the optoelectronic protective equipment in accordance with the ap plicable national regulations in effect within the requested intervals The tests must be performed by qualified persons e Itis recommended to regularly
9. B Position transmitter 1 and receiver 2 on top of each other C Combination in L shape T2 T transmitter R receiver 18 6 8 Use of corner mirrors To protect and monitor hazardous areas with access from several sides one or several mirrors can be used available as accessory By using mirrors the light beam emitted by the transmitter can be sent via several access sides gt To obtain a reflection angle of 90 the mirrors are to be oriented in an angle of inclination of 45 The following image shows an application where U shaped access protection is implemented using two mirrors receiver R transmitter T gt A hazardous area S min safety distance M corner mirror Dx side length gt Install the mirrors so that the minimum safety distance S is adhered to at each side of the hazardous area gt During installation make sure that the reflecting area is plane and that no vibra tions affect the safety device The range is the sum of the length of all sides D1 D2 D3 of the access to the protected area The maximum range of the photoelectric safety sensors is reduced by 15 for each mirror Do not use more than three mirrors 7 Electrical connection gt Disconnect power Also disconnect any independently supplied relay load circuits ER The nominal voltage is 24 V DC This voltage may vary between 19 2 V and 28 8 V Fa In case of a single fault the supply voltage must not exce
10. CE 704555 03 06 2015 ifm electronic Original operating instructions Photoelectric safety sensors safety light curtain safety light grid Protected area width range 0 12 m efector2co OY Contents MD We UIA TNO acc ac tse EE caeeo ate toncsesoane E 4 ST ee ee eee ere 4 AS Sions RS a eens 4 PAST EI AE UC TC eee ee ree eee een eee een eee eee 5 2 1 Safety related requirements regarding the application 6 3 tems SUDDI Q nine ere ann 7 4 Functions and ME AUS iss a ns eue eue 7 SA FON Oee E eae ste cde E don cena Sasa ceacesesaasaaweueadoreeasmuaemasroeeeet 8 QU LEE ILE E E E A A EA E AA T A 9 6 1 Installation instructions cccccccccessescsscecsssecsessseecsecescessecescaseessteessaseesaees 9 6 2 Calculation of the minimum safety distance ccccsseeeeseseeseesseeeeseseeeeeees 10 6 3 Vertical installation of the safety light curtains light grids 12 6 3 1 Safety light curtains resolutions 30 mm and 40 MM ccceeeeees 12 6 3 2 Safety light curtains resolutions 50 mm and 90 mm safety light grids OP A DAS ee ee 13 6 4 Horizontal installation of the safety light curtains 14 6 5 FIXING and optical GIOMIMGAN seseina a 14 65 Obs a 15 6 6 Distance of the reflecting surfaces csesessssesesssesssessssseseessssseesevereeses 16 CF KURDIO SNS EN a a a en 18 6 8 Use of corner FANN ORS ne ee teen ns 19 Fe Electrica GONG GOW a a
11. afety light curtains light grids been checked according to the func tion and maintenance descriptions in these operating instructions Has external monitoring EDM of the control unit e g contactor valve etc been used Is the state defined as safe for switching on off of the safety light curtains light grids initiated Is are there any soiling or scratches on the light emitting surface Are the installation instructions of these operating instructions adhered to E This check list does not replace checking or set up by a person trained in 40 safety matters 41
12. aking into consideration the projection and receiving angles The minimum distance D between reflective surfaces and the protected area P must be observed In case of non respect an object to be detected may not be detected In case of improper handling of the product the safe ty and physical integrity of operators and machinery cannot be guaranteed D minimum distance protected area width range P protected area gt After installation test by intended interruption of the protected area P if reflec tive surfaces affect the function of the photoelectric safety sensors 16 Minimum distance to reflective surfaces Safety light curtains light grids type 2 8 10 12 14 16 18 20 22 D minimum distance in mm protected area width range m Safety light curtains light grids type 4 12 14 16 18 20 22 D minimum distance in mm protected area width range m 17 6 7 Multiple systems The use of several safety light curtains light grids can lead to malfunction and disable the protective function The safety light curtains light grids are to be installed so that the beam sent by the transmitter of a system can only be detected by the respective receiver The following important rules for installation are to be observed to avoid mutual interference of several systems Arrangement A Arrangement B Possible arrangements A Position of both transmit ters next to each other
13. ated requirements regarding the application It must be ensured that the safety requirements of the respective application cor respond to the requirements stated in these instructions Observe the following requirements gt Adhere to the specified operating conditions 12 Technical data Use of the photoelectric safety sensors in the vicinity of chemically and biologically active media as well as ionising radiation is not permitted gt For applications in the food industry contact your ifm branch office to check the compatibility of the materials of the photoelectric safety sensors with the chemicals used gt Adhere to the principle of normally closed operation for all external safety circuits connected to the system gt If the photoelectric safety sensors go into the state defined as safe due to an internal fault measures have to be taken to maintain the safe state when the installation resumes operation gt Replace damaged units The protective function of the photoelectric safety sensors is only ensured with the following conditions e The machine control can be electrically controlled and the hazardous machine motion can be stopped immediately at any time of the operation cycle e There is no danger for machine operators due to ejection of materials or machine parts e The hazardous area is only accessible via the protected area 3 Items supplied e 2 photoelectric safety sensors 1 transmitter and 1 receiver
14. clean the front panes of the transmitter and the receiver e Clean the unit with a clean damp cloth In particularly dusty environments we recommend to spray the cleaned front pane with an antistatic product e Do not use any aggressive or abrasion developing cleaning agents since they could attack the surfaces To avoid electrostatic charging on the front do not use any woollen cloths Scratches on the front panes of the photoelectric safety sensors can deviate the light beams and impair the protective function e Only the manufacturer is allowed to repair the unit e After use dispose of the unit in an environmentally friendly way in accordance with the applicable national regulations 15 Approvals standards The following standards and directives have been applied e 2006 42 EC European machinery directive 2004 108 EC EMC directive e EN ISO 13849 1 2008 Safety of machinery safety related parts of control systems e EN 61496 1 2013 Safety of machinery Electro sensitive protective equipment e EN 62061 2005 Safety of machinery Functional safety e UL508 38 16 Terms and abbreviations Blanking Optional function ensuring that objects are in the protected area which are larger than the detection capacity with out the OSSDs switching off ESPE pC Electro Sensitive Protective Equipment Muting Temporary bridging of a safety function by safety related parts of the control system MTTF Mean Time To Dangerous Failu
15. ed a maximum of 28 8 V DC Therefore a safe separation between current supply and trans former is necessary Fa To guarantee functional reliability an output capacity of min 2000 uF A has to be ensured if a power supply with diode bridge is used gt Connect the devices to the following table 7 1 Wiring diagram transmitter Pin layout Pin Name Type Description L 24 V DC ai EEA voltage 2 1 DEN lee tea protected area width 5 L 0 V DC Input Seer tee voltage 3 4 rang ete th protected area width Functional earth earth For information about available sockets connectors see Products Accessories The protected area width range to be used is configured via range 0 and range 1 7 1 1 Configuration protected area width range Selection range low 0 4 m Selection range high 3 12 m OV Transmitter in test function 8 4 Test function No function configuration error For proper function of the safety light curtains light grids pins 2 and 4 of the transmitter have to be connected according to the indications in the above table 20 7 2 Wiring diagram receiver Pinto Pn wane ype one 2 avo om anne SEL_A Operating mode 6 SEL B Safety light curtains light grids 0 V DC a Operating voltage 0 V DC e FE _ Functional eat For information about available sockets connectors see Products Accessories Ey Note Lay the cables of the photoelectric safety senso
16. f the protected are is clear the two outputs OSSDs of the receiver are active If an object O with a diameter greater than or equal to the resolution d enters the protected area the outputs are switched off The resolution d detection capability of the safety light curtain light grid de pends on the lens diameter B and the lens distance C and remains constant at all application conditions transmitter T receiver R O object C lens distance B lens diameter d resolution To ensure that an object O is reliably detected in the protected area the dimensions of the object O must be at least as great as the resolution d 6 Installation 6 1 Installation instructions The following conditions are to be ensured before installation of the photoelectric safety sensors e The degree of protection of the electro sensitive equipment ESPE has to cor respond with the risk assessment of the machine to be monitored e The safety system ensures a safety function and is not required for the opera tion of a machine e It must be possible to stop any hazardous motion of the machine immediately UK In this respect the shutdown delay of the machine has to be determined e The object to be detected must be greater than or equal to the resolution of the photoelectric safety sensor Install the photoelectric safety sensors so that the hazardous area can only be accessed via the protected area Depending on the appl
17. he safety light curtains light grids Protected area clear Outputs active logic 1 Protected area interrupted Outputs deactivated logic 0 8 2 Manual operation Operation in the manual mode Start Restart Interlock activated is always neces sary when passage to a hazardous area is to be monitored persons can be present in the hazardous area after accessing the protected area without being detected The start restart button has to be outside the hazardous area It has to be installed so that the hazardous area and access can be clearly seen It must not be pos sible to activate the start restart button from within the hazardous area In the manual mode the safety light curtains light grids comply with the function as trip device to IEC 61496 Non compliance with this standard can lead to a hazard for people The OSSD1 and OSSD2 safety outputs are activated when the protected area is clear and the restart command is entered via a start button or via a respective pulse on input K1_K2 restart pin 4 If the safety light curtains light grids are released by a person or an object a restart command 24 V on pin 4 has to be released Pulse duration gt 100 ms 23 8 3 Connection of external contactors K1 and K2 External contactors can be integrated in the automatic or manual operating mode The contactors have to be connected in series between the supply voltage and pin 4 of the receiver 8 Operating modes table f
18. ication other mechanical protective equipment may be necessary The operating conditions at the mounting location must not affect the functioning of the photoelectric safety sensors Please note especially e The transmitter and the receiver must not be affected by intensive light sources emitters sunlight etc e The operating temperature must be within the range indicated 12 Technical data Fogging of the lenses due to considerable temperature fluctuations can affect the functioning of the photoelectric safety sensors Take appropriate measures to prevent this e Certain operating conditions can affect the functioning of the photoelectric safety sensors For mounting locations where fog rain smoke or dust may oc cur it is recommended to take appropriate measures The standards EN 999 and ISO 13855 must be adhered to Observe the following illustrations for correct installation of the photoelectric safety sensors Correct installation 6 2 Calculation of the minimum safety distance There must be minimum safety distance between the photoelectric safety sensor and the point of danger This distance must be ensured so that the point of danger cannot be accessed before the hazardous state of the machine has been stopped 10 gt Install the photoelectric safety sensor at a distance that is greater or equal to the minimum safety dis tance S so that the hazardous area A can only be accessed after complete
19. ig B With manual function a start button has additionally to be switched in series 8 Operating modes table fig D 8 4 Test function For the test function the photoelectric safety sensors can e g be tested by a process control system or a control module 7 1 Table Configuration protected area width The test pulse interrupts the light emission by the transmitter and the outputs carry a 0 signal 10 1 Switching states of the outputs The minimum duration of the test command is 4 ms 8 4 1 Internal test function Type 2 safety light curtains light grids have an automatic internal test function to detect faults An internal test is performed at an interval of lt 5 s and with each change from protected area interrupted to protected area clear Type 4 safety light curtains light grids continuously perform internal tests The faults are detected within the response time of the respective model leading to switch off response times 12 Technical data 24 9 Operating and display elements transmitter receiver 1 LED 3 colours red green orange 2 LED yellow 3 LED 2 colours red green 9 1 LED states Transmitter Receiver D 3 colour LED 2 colour LED Description e input test Normal operating conditions Protected area interrupted outputs deactivated Protected area clear outputs deactivated waiting for restart Protected area clear outputs activated 25 10 Opera
20. ns 30 mm resolution Faso ns a 88 75 08 ms i Safety related reliability m 08 08 Pi wa 9 5 1 198 1 2 CCF f 80 80 80 80 80 80 80 80 80 Cat A 4 4 4 4 4 4 4 4 4 12 2 2 Safety light curtains 40 mm resolution ewe EEE ET os oo es eee Safety related reliability 6s 7 8 8 6 lo jos 1 0 4408 4 208 4 308 s 96 5 96 7 97 0 97 1 97 2 97 3 97 4 97 4 ea 7 j A ri i 7 j h 12 2 3 Safety light curtains 50 mm resolution co Total length L 363 513 663 813 963 1113 1263 Protected area eight Immi 310 460 610 760 910 1060 1210 160 1 mome mla tute a ae e oa 34 12 2 4 Safety light curtains 90 mm resolution O O O O Total length L mm 663 813 1113 1263 1413 1563 Protected area height mm 610 70 PFHd 97 0 80 4 DC Well 967 968 969 969 97 0 97 1 UK CCF 80 80 80 80 80 80 Cat 4 4 4 4 4 4 12 2 5 Safety light grids 2 3 and 4 beams E ort ort avies o gt f s f e Number of beams 2 Total lengthL mm 1053 Protected area height mm Response time s Safety related reliability P 65 PFHd 6 9 7 6 8 2 96 2 96 2 96 1 80 80 80 4 4 4 35 13 Troubleshooting The LEDs of the transmitter and the receiver indicate faulty operating states 9 Operating and display elements For a detailed fault description see the following tables 13 1 Fault diagnosis transmitter Troubleshooting
21. ollows S 1600 t t 1200 0 4H with H being the height of the protected area of the refer ence level G of the machine H 15 d 50 In this example the following applies H lt 1 m to ISO 13855 G02444444442424 A hazardous area S min safety distance H height G reference level 6 5 Fixing and optical alignment Correct alignment of the transmitter and the receiver is decisive for the proper function of the photoelectric safety sensors 14 gt Install the transmitter and the receiver using the supplied mounting accessories so that they are exactly opposite each other gt Align the transmitter and the receiver so that they are in parallel at the same height and the plugs face the same direction EW If vibrations are to be expected in your applications it is recommended to use vibration dampers available as accessory E Adjustable brackets can be used to ensure easy optical alignment available as accessories 6 5 1 Optical alignment UK T transmitter R receiver The indication LEDs of the receiver help to correctly align the photoelectric safety sensors gt Align the transmitter so that the green LED of the receiver lights gt Fix the transmitter and the receiver 6 6 Distance of the reflecting surfaces Reflective surfaces close to photoelectric safety sensors can disable the safety function of the system The minimum distance D depends on the protective area width I t
22. re OSSD Output Signal Switch Device Output signal switch element static safety related output PFH Probability of dangerous PFH Failure per Hour PL Performance Level Capability of safety related parts to perform a safety function at predictable conditions to fulfil the expected risk reduction SIL Safety integrity level SIL 1 4 to IEC 61508 The higher the SIL the lower the probability that a safety function will fail Safety integrity level gain imit to IEC 62061 1 a Technical data and further information at www ifm com T T 17 Annex 17 1 Check list This check list serves as help for setting up the safety light curtains light grids The requirements in this check list should to be met however depending on the application and the directives standards referred to 1 2 9 10 Were the directives standards valid for safety of machinery complied with Is access prevention primary guarding of the point of danger only possible through the protected area of the safety light curtains light grids Have steps been taken to prevent reaching under over or around the light guards to prevent attempts to defeat them Has the stop or shutdown delay of the machine been measured and adapted according to the installation of the safety light curtains light grids Have the safety light curtains light grids been duly fixed and secured against loosening or movement Have the s
23. rs separately from sources of interference such as power lines gt Connect the transmitter and the receiver to the functional earth 21 8 Operating modes The different operating modes of the safety light curtains light grids of the OY series can be set via the respective connections to the 8 pole plug of the receiver Operating modes pin 4 ON 22 Automatic Automatic with monitoring K1_K2 O Le L Manual Restart K1_K2 restart Connects to L 24 V DC K1_K2 restart Connects to L 24 V DC via NC contacts of K1_K2 K1_K2 restart Connects to L 24 V DC via start button K1_K2 restart Connects to L 24 V DC via start button and NC contacts of K1_K2 Connections pind SEL A Connects to L 24 V DC SEL A Connects to L 24 V DC SEL A Connects to L 0 V DC SEL A Connects to L 0 V DC SEL B Connects to L 0 V DC SEL B Connects to L 0 V DC SEL B Connects to L 24 V DC SEL B Connects to L 24 V DC 8 1 Automatic operation If the safety light curtains light grids are used in the automatic mode monitored Start is not possible The safety light curtains light grids automatically return to operation with clear protected area the outputs OSSDs are activated 1 Verify if this is compatible with your machine In the automatic mode the OSSD1 and OSSD2 outputs follow the status of t
24. standstill of the hazardous machine motion According to the European Standard EN 999 2008 the following formula is to be used to calculate the minimum safety distance S S K t1 t2 C C 8 d 14 A hazardous area S min safety distance H protected area height C additional distance Minimum safety distance Speed of approach of the object towards the hazardous area Total response time of the protective equipment from release to switching off Total response time of the machine from the stop signal to switching off or to passing into the state defined as safe Additional distance Resolution detection capability Non compliance with the minimum safety distance may lead to restrictions to or loss of the safety function Application example A hazardous area S min safety distance 6 3 Vertical installation of the safety light curtains light grids 6 3 1 Safety light curtains resolutions 30 mm and 40 mm TE These designs are suitable for access prevention of hands hand y protection 1 They must not be used for finger protection The minimum safety distance S is determined using the following formula S 2000 t t 8 d 14 This formula applies to minimum safety distances S between 100 and 500 mm If the calculation shows that S is greater than 500 mm the distance can be reduced to a minimum value of 500 mm by using the following formula S 1600 t t 8 d 14
25. tion 10 1 Switching state of the outputs The safety light curtains light grids have two outputs OSSDs on the receiver the status depends on the condition of the protected area The max ohmic resistance is 400 mA at 24 V DC The maximum load capacity is 0 82 UF All short circuits between the outputs or between an output and the current supply 24 V DC or 0 V DC are detected by the 1 safety light curtains light grids as a fault Output Binary sitis Condition protected area interrupted or fault detected Condition protected area clear 10 1 1 The safe state The safe state is when the output is switched off zero current state logic 0 of min one of the outputs OSSDs If one of the outputs is switched off the subsequent safety related logic unit must bring the complete system into the state defined as safe 10 1 2 The switched state In switched state the receiver provides a current of 24 V DC logic 1 to both outputs Output characteristics The output characteristics follow the characteristics of the input according to IEC 61496 Toer Javo max 400 mA rh sisvoc 26 10 2 Functional test of the safety light curtains light grids Check the proper function of the safety light curtains light grids before work Starts For the functional test a test object in accordance with a resolution of the safety light curtains light grids has to be used For information about available test rods see
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