Instruction manual SC2
Contents
1. Solution The SC2 safety light curtain series represents the ideal solution if the safety requirements and the application are considered When even just one of the light curtain beams is interrupted the carousel is immediately stopped Advantages The SC2 light curtain meets the customer s needs when easy access is necessary in presence of machine stops Easy installation configuration and use are other advantages Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 13 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI 1 5 Safety Information Z For a correct and safe use of the safety light curtains of the SC2 series the following points must be observed The stopping system of the machine must be electrically controlled This control system must be able to stop the dangerous Movement of the machine within the total machine stopping time T as per section 1 3 3 and during all working cycle phases Mounting and connection of the safety light curtain must be carried out only by qualified personnel according to the indications included in the special sections refer to sections 2 3 4 5 and in the applicable Standards The safety light curtain must be securely installed in a particular position so that access to the dangerous zone is not possible without the interruption of the beams see section 22. 10 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI Practical examples Let s suppose we have a light curtain with height 600 mm 1 To calculate the distance of the device from the ESPE in a vertical position the following formula is used S K T C where T t t t ESPE response time relay release time max 80 ms t Machine total stopping time C 8 d 14 for devices with resolution lt 40 mm C 850 for devices with resolution gt 40 mm d Resolution of the system In all cases if K 2000mm sec then S will be gt 500 mm Distance will have then to be recalculated using K 1600 mm sec SC2 AR 30 600 D19 SC2 AR 90 600 D19 T 0 398 sec 0 391 sec Cc 128 mm 850 mm S 764 8 mm 1475 6 mm 2 To calculate the distance of the device from the ESPE in a horizontal position the following formula is used S 1600 T 1200 0 4 H where H Beam min height from ground 15 d 50 D Resolution SC2 AR 90 600 D19 T 0 391 sec H 600 mm S 1585 6 mm Z AWARNING the reference standard is EN 999 Machine safety the positioning of the protective device based on the approaching speed of the human body This information is just an indication and a kind of summary For safety distance
3. As soon as an object a limb or the operator s body accidentally interrupts one or some of the infrared beams sent by the emitter the receiver immediately opens the OSSD outputs and blocks the MPCE machine if correctly connected to the OSSD Some parts or sections of this manual containing important information for the operator are preceded by a note Notes and detailed descriptions about particular characteristics of the safety devices in order to better explain their functioning Special instructions regarding the installation process 4 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI A The information provided in the paragraphs following this symbol is very important for safety and may prevent accidents Always read this information accurately and carefully follow the advice to the letter This manual contains all the information necessary for the selection and operation of the safety devices However specialised knowledge not included in this technical description is required for the planning and implementation of a safety light curtain on a power driven machine As the required knowledge may not be completely included in this manual we suggest the customer to contact Carlo Gavazzi Technical Service for any necessary information relative to the functionin
4. Installation mode The personnel operating in the dangerous area must be well trained and must have adequate knowledge of all the operating procedures of the safety light curtain The TEST button must be located outside the protected area because the operator must check the protected area during all Test and Reset operations Please carefully read the instructions for the correct functioning before powering the light curtain Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 2 Installation Mode CARLO GAVAZZI 2 1 Precautions to be Observed for the Choice and Installation of the Device Z Make sure that the protection level assured by the SC2 device Type 2 is compatible with the real danger level of the machine to be controlled according to EN 954 1 and EN ISO 13849 1 2008 e The outputs OSSD of the ESPE must be used as machine stopping devices and not as command devices The machine must have its own START command e The dimension of the smallest object to be detected must be larger than the resolution level of the device e The ESPE must be installed in a room complying with the technical characteristics indicated in section 10 Technical data e Do not place the device near intense and or flashing light sources and in particular close to receiv
5. CEP 01401 000 Tel 55 11 3052 0832 Fax 55 11 3057 1753 info carlogavazzi com br OUR SALES NETWORK IN ASIA AND PACIFIC SINGAPORE Carlo Gavazzi Automation Singapore Pte Ltd 61 Tai Seng Avenue 05 06 UE Print Media Hub Singapore 534167 Tel 65 67 466 990 Fax 65 67 461 980 info carlogavazzi com sg HONG KONG Carlo Gavazzi Automation Hong Kong Ltd Unit 3 12 F Crown Industrial Bldg 106 How Ming St Kwun Tong Kowloon Hong Kong Tel 852 23041228 Fax 852 23443689 CHINA Carlo Gavazzi Automation China Co Ltd Unit 2308 23 F News Building Block 1 1002 Middle Shennan Zhong Road Shenzhen China Tel 86 755 83699500 Fax 86 755 83699300 sales carlogavazzi cn MALAYSIA Carlo Gavazzi Automation M SDN BHD D12 06 G Block D12 Pusat Perdagangan Dana 1 Jalan PJU 1A 46 47301 Petaling Jaya Selangor Malaysia Tel 60 3 7842 7299 Fax 60 3 7842 7399 sales gavazzi asia com OUR COMPETENCE CENTRES AND PRODUCTION SITES DENMARK Carlo Gavazzi Industri A S MALTA Carlo Gavazzi Ltd Hadsten Zejtun LITHUANIA Uab Carlo Gavazzi Industri Kaunas Kaunas ITALY Carlo Gavazzi Controls SpA Belluno CHINA Carlo Gavazzi Automation Kunshan Co Ltd Kunshan HEADQUARTERS Carlo Gavazzi Automation SpA Via Milano 13 20020 Lainate MI ITALY Tel 39 02 931 761 info gavazziautomation com Installation Manual SC2 Eng rev 00 01 2014 ie Automation Component
6. 2006 42 EC Machinery Directive 2004 108 EC EMC Directive 2006 95 EC Low Voltage Directive This Declaration is based upon compliance of the products to the following standards EN 61496 1 2004 Safety of machinery Electro Sensitive protective equipment Part 1 General requiremets an tests IEC 61496 2 2006 Safety of machinery Electro Sensitive protective equipment Part 2 Particular requirements for equipment using active opto electronic protective devices AOPDs IEC 61508 1 3 4 1998 Functional safety of electrical electronic programmable electronic IEC 61508 2 2000 Safety related systems EN 954 1 1996 Safety of machinery Safety related parts of control system EN ISO 13849 1 2008 Safety of machinery Safety related parts of control system Part 1 General principles for design EN 62061 2005 Safety of machinery Functional safety of safety related electrical electronic and programmable electrionic control system EN 50178 1997 Electronic equipment for use in power installations EN 61000 6 2 2005 Electromagnetic standards Immunity for industrial environments EN 55022 Class A ITE 2010 Limits and methods of measurements of radio disturbance of information technology equipment Conformity as been certified by the following Notified Competent body identification N 0123 T V SUD Rail GmbH Ridlerstrasse 57 D80339 Munchen Carlo Gavazzi Logistics have a quality system certified by the EQA
7. 39 02 931 763 01 38 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 9 Device Maintenance CARLO GAVAZZI SC2 safety light curtains do not require special maintenance operations To avoid the reduction of the operative distance optics protective front surfaces shall be cleaned at regular intervals To this end use soft cotton cloths damped in water do not apply too much pressure onto the surface so as not to make it dull Please do not use on plastic surfaces or light curtain painted surfaces e Alcohol or solvents e Wool or synthetic cloths e Paper or other abrasive materials 9 1 Product Disposal Under current Italian and European laws Carlo Gavazzi is not obliged to take care of product disposal at the end of its life Carlo Gavazzi recommends to dispose of the product in compliance with local laws or contact authorised waste collection centres Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 39 Instruction Manual Safety Light Curtain SC2 10 Technical Data CARLO GAVAZZI Yy The product technical specifications are given below ELECTRICAL DATA Power
8. AR 30 300 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2 AR 30 450 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2 AR 30 600 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2 AR 30 750 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2 AR 30 900 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2 AR 30 1050 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2 AR 30 1200 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2 AR 30 1350 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2 AR 30 1500 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2 AR 90 300 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2 AR 90 450 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2 AR 90 600 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2 AR 90 750 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2 AR 90 900 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2 AR 90 1050 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2 AR 90 1200 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2 AR 90 1350 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2 AR 90 1500 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 42 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 12 Overall
9. correct calculation it is compulsory to refer to the whole EN999 standard Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 11 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI 1 4 Typical Application The safety light curtains of the SC2 series are used in all automation fields where the control and protection of the access to dangerous areas are necessary In particular they are used to stop the moving of mechanical parts in Automatic machines Machines for packaging material handling storing Weaving machines wood working machines ceramic working machines Automatic and semiautomatic assembly lines Automatic warehouses A In food industry applications Carlo Gavazzi Technical Service has to verify the compatibility of the material of the safety light curtain housing with any chemical agents used in the production process Example 1 Hand protection on moulding machines In order to protect the light curtain against dust and humidity a IP69K protective enclosure can be used The aim is to prevent operator s hands from being squashed during the final product stacking process In addition the solution must not interfere with the manufacturing process Solution The new SC2 safety light curtains present an ideal solution to safely monitor a moulding application whilst op
10. surface Fig 7 18 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI It is thus important to position the safety light curtain according to the minimum distance from reflecting surfaces The minimum distance depends on e Operating distance between emitter TX and receiver RX e Real opening angle of ESPE EAA in particular for ESPE type 2 EAA 10 a 5 Diagram of Fig 8 shows the min distance from the reflecting surface Dsr based on the operating distance S MA ESPE amp 167 ess 7 O E 202 7 E gt m 0 2 7 3 19 S Operating distance Fig 8 The formula to get Dsr is the following Dsr m 0 27 for oper distances lt 3m Dsr m 0 5 operating distance m x tg 2a for oper distances gt 3 m Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 19 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI 2 2 3 Emitter and Receiver Orientation The two units shall be installed parallel to each other with the beams orthogonal respect to the emitting and receiving directions with the connectors positioned in the same manner The configurations shown in Fig 9 must be
11. Automation Components 4 CARLO GAVAZZI v Safety Light Curtain with infrared beams SC2 type Instruction manual Sense Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI ORIGINAL INSTRUCTIONS ref 2006 42 EC CARLO GAVAZZI LOGISTICS S p A Headquarter Via Milano 13 l 20020 Lainate MI Tel 39 02 93176 1 Fax 39 02 9176 403 Internet http www gavazziautomation com SC2 Instruction Manual Ed 03 2013 All brand and product names mentioned herein are for identification purposes only and may be trademarks or registered trademarks of their respective owners Carlo Gavazzi shall not be liable for technical or editorial errors or omissions contained herein not for incidental or consequential damages resulting from the use of this material Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI v DECLARATION OF CONFORMITY Automation Components CARLO GAVAZZI LOGISTICS S p A Headquarter Via Milano 13 1 20020 Lainate MI Tel 39 02 93176 1 Fax 39 02 9176 403 Internet http www gavazziautomation com declars that the SC2 SAFETY LIGHT CURTAINS ELECTRO SENSITIVE PROTECTIVE EQUIPMENT Type 2 ESPE and all its models are in conformity with the requirements of the European Council Directives listed below
12. C 24VDC aaa pra ug SO I osso nn in J mini Fig 18 Fig 19 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 29 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI 4 2 Earth Connection SC2 safety light curtain units are preset for easy ground connection A special compartment positioned onto caps and marked with the special symbol shown in Figure 20 allows connection with ground cable by means of an additional screw coming with the equipment Fig 20 Ground connection configuration is the most common and guarantees the best immunity against electromagnetic disturbances SC2 can function even without ground connection This condition has to be carefully evaluated according to the EMC disturbance immunity and necessary insulation class considering the plant or entire system where the light curtain is installed e The ground connection of the two units is not necessary for Class III while the use of a duly insulated low voltage feeder type SELV or PELV is compulsory In this case we recommend covering the earth symbol present on the caps of the two units with a blank sticker e The ground connection of the two units is compulsory for Class while the use of a duly insulated feeder type SELV or PELV is not compulsory but anyway recommended The following table is a summary of SC2 electr
13. Dimensions oO 4 5 Ut fe Ldi N I i 4 ti La a L2 pa L1 Model L L SC2 AR 30 150 D19 233 3 153 3 SC2 AR 30 300 D19 383 2 303 2 SC2 AR 30 450 D19 533 2 453 3 SC2 AR 30 600 D19 683 2 603 2 SC2 AR 30 750 D19 833 2 753 3 SC2 AR 30 900 D19 983 2 903 2 SC2 AR 30 1050 D19 1133 2 1053 2 SC2 AR 30 1200 D19 1283 3 1203 3 SC2 AR 30 1350 D19 1433 2 1353 2 SC2 AR 30 1500 D19 1583 3 1503 3 Model L L SC2 AR 90 300 D19 383 2 303 2 SC2 AR 90 450 D19 533 2 453 3 SC2 AR 90 600 D19 683 2 603 2 SC2 AR 90 750 D19 833 2 753 3 SC2 AR 90 900 D19 983 2 903 2 SC2 AR 90 1050 D19 1133 2 1053 2 SC2 AR 90 1200 D19 1283 3 1203 3 SC2 AR 90 1350 D19 1433 2 1353 2 SC2 AR 90 1500 D19 1583 3 1503 3 CARLO GAVAZZI y Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 43 Instruction Manual Safety Light Curtain SC2 13 Accessories CARLO GAVAZZI Model Description SC FB4P Std mounting brackets 4 pes kit SC AV4P Anti Vibration supports 4 pcs kit SC AV6P Anti Vibration supports 6 pcs kit SC OS4P Orientable Supports 4 pcs kit SC OS6P Orientable Supports 6 pcs kit 13 1 Angled Fixing Bracket 44 Recs Specifications are subject to change without notice Pictures are just an example Fo
14. E 34 6 1 Reset mode 34 6 2 Test function 34 6 3 Reset function 34 7 DIAGNOSTIC FUNCTIONS 35 7 1 User interface 35 7 2 Diagnostic messages 36 8 PERIODICAL CHECKS 37 8 1 General information and useful data 38 8 2 Warranty 38 9 DEVICE MAINTENANCE 39 9 1 Product disposal 39 2 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI 10 TECHNICAL DATA 40 11 LIST OF AVAILABLE MODELS 41 12 OVERALL DIMENSIONS 43 13 ACCESSORIES 44 13 1 Angled fixing bracket 44 13 2 Test pieces 46 13 3 Connection cables 46 14 GLOSSARY 47 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 3 Instruction Manual Safety Light Curtain SC2 1 General Information CARLO GAVAZZI 1 1 General Description of the Safety Light Curtains The safety light curtains of the SC2 series are optoelectronic multibeam devices that are used to protect working areas that in presence of machines robots and automatic systems in general can become dangerous for operators that can get in touch even accidentally with moving parts The light curtains of the SC2 series are Type 2 intrinsic safety systems used as accident prevention protection devices and are manufactured in acco
15. Nr QA130463 as per ISO 9001 and have therefore observed the regulations foreseen during development and manufacturing ainate September 30 2013 ittorio Rossi Carlo Gavazzi Logistics S p A Managing director 9 l f O CN Mm 5 j Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 Index CARLO GAVAZZI 1 GENERAL INFORMATION1 1 1 General description of the safety light curtains 4 1 1 1 Package contents 5 1 2 New features compared to the SB2 Series 6 1 3 How to choose the device 7 1 3 1 Resolution 7 1 3 2 Controlled height 8 1 3 3 Minimum installation distance 9 1 4 Typical applications 12 1 5 Safety information 14 2 INSTALLATION MODE 15 2 1 Precautions to be observed for the choice and installation of the device 15 2 2 General information on device positioning 16 2 2 1 Minimum installation distance 17 2 2 2 Minimum distance from reflecting surfaces 18 2 2 3 Emitter and receiver orientation 20 2 2 4 Installation of several adjacent safety light curtains 21 2 2 5 Use of deviating mirrors 22 2 2 6 Controls after first installation 23 3 MECHANICAL MOUNTING 24 4 ELECTRICAL CONNECTIONS 27 4 1 Notes on connections 28 4 2 Earth connection 30 5 ALIGNMENT PROCEDURE 31 5 1 Correct alignment procedure 33 6 FUNCTIONING MOD
16. OFF Nomal Emission OSSD ON green ON Light curtain working and in normal ope operation rating conditions Interruption OSSD OFF red ON Light curtain working and in safety block o B conditions Check OSSD connections make sure that OSSD error yellow and red they are not in contact with one another or BLINKING with the supply cables then Reset If the failure continues contact Carlo Gavazzi Switch OFF and switch ON the supply cir Internal error red ON yellow ar F BLINKING cuit if the failure continues contact Carlo Gavazzi Optical error red ON yellow Reset If the failure continues contact Car BLINKING lo Gavazzi Check connections and input voltage cor No power supply LEDs OFF rect value If the failure continues contact Carlo Gavazzi For emitter Function Status Meaning o Light curtain being tested the OSSD status Nomal Emission operation green ON Light curtain working and in normal ope yellow ON rating conditions Switch OFF and switch ON the supply cir cuit if the failure continues contact Carlo Gavazzi Switch OFF and switch ON the power supply circuit If the failure continues con tact Carlo Gavazzi Internal error green ON yellow BLINKING Optical error green ON yellow blinking No power supply Check connections and input voltage cor LEDs OFF rect value If the failure continues contact Carlo Gavazzi 36 Specifications are subject to change without notic
17. POINT machine position where the material or semifinished product is worked 48 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 OUR SALES NETWORK IN EUROPE AUSTRIA Carlo Gavazzi GmbH Ketzergasse 374 A 1230 Wien Tel 43 1 888 4112 Fax 43 1 889 10 53 office carlogavazzi at BELGIUM Carlo Gavazzi NV SA Mechelsesteenweg 311 B 1800 Vilvoorde Tel 32 2 257 4120 Fax 32 2 257 41 25 sales carlogavazzi be DENMARK Carlo Gavazzi Handel A S Over Hadstenvej 40 DK 8370 Hadsten Tel 45 89 60 6100 Fax 45 86 98 15 30 handel gavazzi dk FINLAND Carlo Gavazzi OY AB Petaksentie 2 4 F 00661 Helsinki Tel 358 9 756 2000 Fax 358 9 756 20010 myynti gavazzi fi FRANCE Carlo Gavazzi Sarl Zac de Paris Nord Il 69 rue de la Belle Etoile F 95956 Roissy CDG Cedex Tel 33 1 49 38 98 60 Fax 33 1 48 63 27 43 french team carlogavazzi fr GERMANY Carlo Gavazzi GmbH Pfnorstr 10 14 D 64293 Darmstadt Tel 49 6151 81000 Fax 49 6151 81 00 40 info gavazzi de GREAT BRITAIN Carlo Gavazzi UK Ltd 7 Springlakes Industrial Estate Deadbrook Lane Hants GU12 4UH GB Aldershot Tel 44 1 252 339600 Fax 44 1 252 326 799 sales carlogavazzi co uk ITALY Carlo Gavazzi SpA Via Milano 13 20020 Lainate Tel 39 02 931 761 Fax 39 02 931 763 01 info gavazziacbu it NETHERLANDS Carlo Gav
18. SC2 3 Mechanical Mounting CARLO GAVAZZI The emitting TX and receiving RX units must be installed with the relevant sensitive surfaces facing each other The connectors must be positioned on the same side and the distance must be included within the operating range of the model used see section 10 Technical data The two units must be positioned the most aligned and parallel possible The next step is the fine alignment as shown in section 5 Alignment Procedure Two types of brackets can be used to fix the two units Angled fixing brackets Angled fixing brackets are supplied with all SC2 models Fig 13 Adjustable supports for correcting unit inclination on the axes are available on request see section 14 Accessories For fixing with angled brackets refer to Fig 13 Fig 13 24 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI Rotating brackets Rotating brackets Fig 14 available upon request can be used as an alternative or together with angled brackets For fixing with rotating bracket refer to Fig 14 Fig 14 In case of applications with particularly strong vibrations vibration dampers together with mounting brackets are recommended to reduce the impact of the vibrations A ny Fig 15 The recommend
19. VAZZI All electrical connections to the emitting and receiving units are made through a male M12 connector located on the lower part of the two units For receiver a M12 5 pole connector is used while for emitter a M12 4 pole connector is used RECEIVER RX OSSD1 OV 1 Brown 24VDC 2 White OSSD 1 3 Blue OV 4 Black OSSD 2 5 Grey TEST RESET EMITTER TX EMITTER TX NOT USED oV 1 Brown 24VDC 2 White NOT USED 3 Blue OV 4 Black NOT USED Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 27 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI 4 1 Notes of Connections For the correct functioning of the SC2 safety light curtains the following precautions regarding the electrical connections have to be respected e Do not place connection cables in contact with or near high voltage cables and or cable undergoing high current variations e g motor power supplies inverters etc NDo not connect in the same multi pole cable the OSSD wires of different light curtains e The TEST RESET wire must be connected through a N O button to the supply voltage of the ESPE NThe TEST RESET button must be located in such a way that the operator can check the protected area during any Test and Reset operation see section 6 Functioning mode e The device is p
20. afety Light Curtain SC2 11 List of Available Models CARLO GAVAZZI Model Protected height Number Response time Resolution mm of beams msec mm SC2 AR 30 150 D19 150 8 8 30 SC2 AR 30 300 D19 300 16 9 30 SC2 AR 30 450 D19 450 24 11 30 SC2 AR 30 600 D19 600 32 12 30 SC2 AR 30 750 D19 750 40 14 30 SC2 AR 30 900 D19 900 48 15 30 SC2 AR 30 1050 D19 1050 56 17 30 SC2 AR 30 1200 D19 1200 64 18 30 SC2 AR 30 1350 D19 1350 72 20 30 SC2 AR 30 1500 D19 1500 80 21 30 SC2 AR 90 300 D19 300 5 9 90 SC2 AR 90 450 D19 450 7 10 90 SC2 AR 90 600 D19 600 9 11 90 SC2 AR 90 750 D19 750 11 12 90 SC2 AR 90 900 D19 900 13 13 90 SC2 AR 90 1050 D19 1050 15 14 90 SC2 AR 90 1200 D19 1200 17 15 90 SC2 AR 90 1350 D19 1350 19 16 90 SC2 AR 90 1500 D19 1500 21 17 90 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 41 Instruction Manual Safety Light Curtain SC2 A A S 9 T o o S 8 S 25 z re stra 2 do 2 3 o B SE S ERL 289 35 ee 2 2 o g 38 o cos 353 Y 85 Oo Z Lu Lu 3 oot Z a a 33 gjuj z ps Lo To 5 z LU LU a Product PL CAT SIL SILCL hi n ta faa DC SFF HFT SC2 AR 30 150 D19 d 2 2 2 1 04E 08 20 273 97 50 98 40 0 SC2
21. afety light curtain according to the Fig 12 scheme Verify that e ESPE remains blocked mm I intercepting the beams along the protected area using the specific test piece following the Fig 12 scheme TP30 for light curtains with 30 mm resolution for example SC2 AR 30 150 D19 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 37 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI 8 1 General Information and Useful Data Safety MUST be a part of our conscience The safety devices fulfil their safety function only if they are correctly installed in accordance with the Standards in force If you are not certain to have the expertise necessary to install the device in the correct way Carlo Gavazzi Customer Service is at your disposal to carry out the installation The device uses fuses that are not self resetting Consequently in presence of short circuits causing the cut off of these fuses both units shall be sent to Carlo Gavazzi service department A power failure caused by interferences may cause the temporary opening of the outputs but the safe functioning of the light curtain will not be compromised 8 2 Warranty Carlo Gavazzi guarantees each brand new SC2 system under standard use conditions against manufacturing defects in material and workmanship for a period of 36 thirty six months fr
22. avoided NO NO Fig 9 20 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 2 2 4 Emitter and Receiver Orientation CARLO GAVAZZI When several safety devices must be installed in adjacent areas interferences between the emitter of one device and the receiver of the other must be avoided Fig 10 provides an example of possible interferences between different devices and two pertinent solutions Fig 10 Opaque surface tf ia a 4 E oa i dl Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 21 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI 2 2 5 Use of Deviating Mirrors The control of any dangerous area with several but adjacent access sides is possible using only one safety device and well positioned deviating mirrors Fig 11 shows a possible solution to control three different access sides using two mirrors placed at 45 with respect to the beams MLM TX S S DANGEROUS D3 AREA DI Yo mirror mirror 4 D2 Fig 11 The operator must respect the following precautions when using the deviating mirrors e The alignment of the emitter and the receiver can b
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24. e Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 8 Periodical Checks CARLO GAVAZZI The following is a list of recommended check and maintenance operations that should be periodically carried out by qualified personnel Check that e The ESPE stays locked mm I during beam interruption along the entire protected area using the suitable Test Piece e The ESPE is correctly aligned by slightly pressing product side in both directions the red LED shall not come ON mw I Enabling the TEST function the OSSD outputs should open the red LED is ON and the controlled machine stops e The response time upon machine STOP including response time of the ESPE and of the machine is within the limits defined for the calculation of the safety distance See section 2 Installation mode The safety distance between the dangerous areas and the ESPE are in accordance with the instructions included in section 2 Installation mode e Access of a person between ESPE and machine dangerous parts is not possible nor is it possible for him her to stay there Access to the dangerous area of the machine from any unprotected area is not possible The ESPE and the external electrical connections are not damaged The frequency of checks depends on the particular application and on the operating conditions of the s
25. e a very critical operation when deviating mirrors are used Even a very small mirror displacement is enough to lose alignment e The minimum safety distance S must be respected for each single section of the beams e The effective operating range decreases by about 15 by using only one deviating mirror the percentage further decreases by using 2 or more mirrors for more details refer to the technical specifications of the mirrors used The following table shows the operating distances relating to the number of mirrors used Number of mirrors Operating distance 1 16 5m 2 13 7m 3 11 6m e Do not use more than three mirrors for each device e The presence of dust or dirt on the reflecting surface of the mirror causes a drastic reduction in the range 22 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI 2 2 6 Controls After Installation e The control operations to carry out after the first installation and before machine start up are listed hereinafter The controls must be carried out by qualified personnel either directly or under the strict supervision of the person in charge of machinery Safety Verify that e ESPE remains blocked mm intercepting the beams along the protected area using the specific test piece following
26. ecifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI When the installation of the safety light curtain very near to the dangerous area is not possible a second light curtain must be mounted in a horizontal position in order to prevent any lateral access as shown in Fig 6b A Ifthe operator is able to enter the dangerous area an additional mechanical protection must be mounted to prevent the access YES Fig 6b 2 2 1 Minimum Installation Distance Refer to section 1 3 3 Minimum installation distance Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 17 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI 2 2 2 Minimum Distance From Reflecting Surface Reflecting surfaces placed near the light beams of the safety device over under or laterally can cause passive reflections These reflections can compromise the recognition of an object inside the controlled area However if the RX receiver detects a secondary beam reflected by the side reflecting surface the object might not be detected even if the object interrupts the main beam DANGEROUS AREA reflecting surface z reflecting
27. ed mounting positions according to the light curtain length are shown in Fig 15 and in the following table Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 25 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI Models L mm A mm B mm 683C mm SC2 AR 30 150 D19 216 3 108 54 SC2 AR 30 300 D19 366 2 216 75 SC2 AR 30 450 D19 516 3 316 100 SC2 AR 30 600 D19 666 2 366 150 SC2 AR 30 750 D19 816 3 466 175 SC2 AR 30 900 D19 966 2 566 200 SC2 AR 30 1050 D19 1116 2 666 225 SC2 AR 30 1200 D19 1266 3 966 150 483 SC2 AR 30 1350 D19 1416 2 1066 175 533 SC2 AR 30 1500 D19 1566 3 1166 200 533 Models L mm A mm B mm 683C mm SC2 AR 90 300 D19 366 2 216 75 SC2 AR 90 450 D19 516 3 316 100 SC2 AR 90 600 D19 666 2 366 150 SC2 AR 90 750 D19 816 3 466 175 SC2 AR 90 900 D19 966 2 566 200 SC2 AR 90 1050 D19 1116 2 666 225 SC2 AR 90 1200 D19 1266 3 966 150 483 SC2 AR 90 1350 D19 1416 2 1066 175 533 SC2 AR 90 1500 D19 1566 3 1166 200 533 26 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 4 Electrical Connection CARLO GA
28. followed e Check the green LED m and the yellow LED m on the TX unit If ON the emitter is running correctly Verify that the sensitive area from the safety light curtain is free Verify that one of the following conditions is present on the RX unit 1 STANDARD CONDITION NORMAL OP Green LED m ON and red LED mm OFF Both yellow LEDs A W are OFF Units are aligned 2 STOP CONDITION SAFE BREAK Green LED m OFF and red LED m ON The status of both yellow LEDs A Y does not matter Units are not aligned Continue with the following steps to pass from condition 2 to condition 1 Keep the receiver in a steady position and set the emitter until the yellow LED WSYNC is OFF This condition shows the effective alignment of the first synchronisation beam Rotate the emitter pivoting on the lower optics axis until the yellow LED ALAST is OFF Under these conditions the SAFE LED shall turn ON NOTE Ensure that the green LED is steady ON Delimit the area in which the LED is steady through some micro adjustments for the first and then for the second unit then place both units in the centre of this area Fix the two units firmly using brackets Verify that the green LED on the RX unit is ON and beams are not interrupted then verify that the red LED turns ON if even one single beam is interrupted condition where an object has been detected This verification shall be
29. g of the SC2 light curtains and the safety rules that regulate the correct installation see section 8 Periodical checks Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 5 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI 1 1 1 Package Contents Package contains the following objects e Receiver RX e Emitter TX e Quick Guide for first installation e CD with user manual and other documents e Checklist and periodical maintenance schedule e 4 angled fixing brackets and specific fasteners e 2 angled fixing brackets for models with heights included between 1200 and 1500 mm 1 2 New Features Compared to the Former SB2 Series The SC2 safety light curtains compared to the SB2 series present the following new features e Increased operating distance e Range enlargement with 300 to 1500 mm controlled heights e Reduced response times e New fastening system with rotating brackets e New mechanical profile compatible with SB accessories e Different positioning of synchronisation optics the first one from the reference line e Different mechanical mounting 6 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI 1 3 Ho
30. he opposite position generates an optical curtain i e the detecting area RESPONSE TIME max time elapsing between the occurrence of the event leading to sensor activation and the reaching of the inactive state by the output signal switching device OSSD RESTART INTERLOCK RESTART device preventing machine automatic restart after sensor activation during a dan gerous phase of machine operating cycle after a change of machine operating mode and after a variation in machine start control devices RISK probability of occurrence of an injury and severity of the injury itself SAFETY LIGHT CURTAIN it is an active optoelectronic protective device AOPD including an integrated system consisting of one or several emitting elements and one or several receiving elements forming a detection area with a detecting capacity specified by the supplier START INTERLOCK START device preventing machine automatic start when the ESPE is powered or when the power supply is cut and then restored TEST PIECE opaque object having a suitable size and used to test safety light curtain correct operation TYPE OF ESPE the Electrosensitive Protective Equipment ESPE have different reactions in case of faults or under different environmental conditions The classification and definition of the type ex type 2 type 4 according to IEC 61496 1 defines the minimum requirements needed for ESPE design manufacturing and testing WORKING
31. ical protections Electrical protection Class Class III Ground connection Compulsory Not necessary Ground connection symbol Compulsory Not necessary ap r supply by generators SELV Recommended Compulsory 30 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 5 Alignment Procedure CARLO GAVAZZI The alignment between the emitting and the receiving units is necessary to obtain the correct functioning of the light curtain A good alignment prevents outputs instability caused by dust or vibrations The alignment is perfect if the optical axes of the first and the last emitting unit s beams coincide with the optical axes of the corresponding elements of the receiving unit The beam used to synchronise the two units is the first after the connector SYNC is the optics connected with this beam and LAST is the optics connected to the last beam after the SYNC unit Last optics LAST First Optics Synchrinisation optics SYNC Fig 21 Signals are clearly identified through symbols allowing immediate reading independent of bars directions A short description of the signalling LEDs is necessary to avoid misunderstandings Receiver Emitter NORMAL NORMAL OP ils OP SAFE BREAK SYNC ON Fig 22 Specifications are subject to change with
32. ing min installation distance value are machine stop time safety system overall response time barrier resolution N O normally opened N C normally closed OFF STATUS status when the output circuit is interrupted and does not allow current stream ON STATUS status when the output circuit is operational and allows current stream Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 47 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI bA OUTPUT SIGNAL SWITCHING DEVICE OSSD part of the electrosensitive protective equipment ESPE connected to ma chine control system that when the sensor is triggered during standard operating mode is switched to the inactive status PROTECTED AREA area where a specified test object is detected by the ESPE PROTECTIVE DEVICE device having the function to protect the operator against possible risks of injury due to the contact with machine potentially dangerous parts QUALIFIED OPERATOR a person who holds a professional training certificate or having a wide knowledge and experience and who is acknowledged as qualified to install and or use of the product and to carry out periodical test procedures RECEIVER unit receiving infrared beams consisting of a set of optically synchronised phototransistors The receiving unit combined with the emitting unit installed in t
33. ing unit front surface e The presence of intense electromagnetic disturbances could affect device correct operation This condition shall be carefully assessed by seeking the advice of Carlo Gavazzi Technical service e The operating distance of the device can be reduced in presence of smog fog or airborne dust e A sudden change in environment temperature with very low minimum peaks can generate a small condensation layer on the lenses and so jeopardise functioning Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 15 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI 2 2 General Information on Device Positioning The safety light curtain should be carefully positioned in order to reach a very high protection standard Access to the dangerous area must only be possible by passing through the protecting safety light beams Z Fig 5a shows some examples of possible access to the machine from the top and the bottom sides These situations may be very dangerous and so the installation of the safety light curtain at sufficient height in order to completely cover the access to the dangerous area Fig 5b becomes necessary O NO Fig 5a YES Under standard operating conditions machine starting must not be possible while operators are inside the dangerous area 16 Sp
34. made with the special cylindrical Test Piece having a size suitable to the resolution of the device used NOTE Passing the Test Piece along the whole sensitive area and at any distance from the two units the red LED shall be always ON and never change status A daily test is recommended Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 33 Instruction Manual Safety Light Curtain SC2 6 Function Mode CARLO GAVAZZI 6 1 Reset Mode The interruption of a beam due to an opaque object causes the opening of OSSD outputs and the stop of the safety light curtain SAFE BREAK condition The ESPE will automatically restart its standard operation NORMAL OP conditions as soon as the object is removed WARNING Carefully assess risk conditions and reset modes In applications protecting access to dangerous areas the automatic reset mode is potentially unsafe if it allows the operator to pass completely beyond the sensitive area see Fig 6b In this case the reset using for example the manual reset of the relay page 26 might be necessary 6 2 Test Function The TEST function can be activated by keeping a normally open external contact TEST push button closed for at least 0 5 seconds The TEST signal is active high OSSD ON OFF 24VDC 6 3 Reset Function The RX light cur
35. mension which an opaque object must have in order to interrupt at least one of the beams that constitute the sensitive area ELECTROSENSITIVE PROTECTIVE EQUIPMENT ESPE assembly of devices and or components working together to activate the protective disabling function or to detect the presence of something and including at least a sensor command control devices and output signal switching devices EMITTER unit emitting infrared beams consisting of a set of optically synchronised LEDs The emitting unit combined with the receiving unit installed in the opposite position generates an optical curtain i e the detecting area FINAL SWITCHING DEVICE FSD part of the control system connected to machine safety and breaking the circuit towards machine primary command element MPCE when the output signal switching device OSSD reaches the inactive condition MACHINE OPERATOR qualified person authorised for machine use MACHINE PRIMARY COMMAND ELEMENT MPCE electrically powered element having the direct control of machine regular operation so as to be the last element in order of time to operate when the machine has to be enabled or blocked MIN INSTALLATION DISTANCE min distance necessary to allow machine dangerous moving parts to completely stop before the operator can reach the nearest dangerous point This distance shall be measured from the middle point of the detecting area to the nearest dangerous point The factors affect
36. nse time of the ESPE in seconds see section 9 Technical data t Machine stopping time in seconds d Resolution of the system C Additional distance based on the possibility to insert the body or one of body parts inside the dangerous area before the protective device trips C 8 d 14 for devices with resolution lt 40mm C 850 mm for devices with resolution gt 40mm NOTE K value is 2000 mm s if the calculated value of S is lt 500 mm 1600 mm s if the calculated value of S is gt 500 mm Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 9 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI When devices with gt 40 mm resolution are used the height of the top beam has to be gt 900 mm H2 from machine supporting base while the height of the bottom beam has to be lt 300 mm H1 If the safety light curtain must be mounted in a horizontal position Fig 4 the distance between the dangerous area and the most distant optical beam must be equal to the value calculated using the following formula S 1600 mm s t t 1200 0 4 H where S Minimum safety distance in mm t Response time of the ESPE in seconds see section 9 Technical data t Machine stopping time in seconds H Beam height from ground this height must always be less than 1 000 mm
37. om the date of manufacturing Carlo Gavazzi will not be liable for any damages to persons and things caused by failure to stick to the correct installation modes and device use Warranty validity is subject to the following conditions e Usershall notify Carlo Gavazzi the failure within thirty six months from product manufacturing date Failure or malfunction shall not have been originated directly or indirectly by use for unsuitable purposes failure to comply with the intended use prescriptions negligence unskillfulness wrong maintenance repairing changes adaptations not made by Carlo Gavazzi personnel tampering with the device etc accidents or crashes even due to transportation or by force majeure causes e other causes not depending from Carlo Gavazzi If the device does not work send both units receiver and emitter to Carlo Gavazzi The Customer is responsible for all transport charges and damage risks or material loss during transport unless otherwise agreed All replaced products and parts become a property of Carlo Gavazzi Carlo Gavazzi does not accept any warranty or right other than the above described ones No requests for compensation for expenses activities stop or other factors or circumstances somehow connected to the failure of the product or one of its parts to operate cannot be put forward for any reason In case of problems please contact Carlo Gavazzi Service Department Tel 39 02 931 761 Fax
38. out notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 31 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI The standard installation described hereinafter is the one shown in Fig 22 i e with the bar assembled with the connectors pointing down Two yellow LEDs A LAST V SYNC on SC2 receiver facilitates the alignment procedure During standard operation the LEDs indicate the safety light curtain status as shown in the table FUNCTIONING STATUS Stop Stop LED colour Symbol Status Status NORMAL OP SAFE BREAK Yellow A OFF ON OFF OFF Yellow y OFF ON ON OFF Red ED OFF ON ON ON Green gt ON OFF OFF OFF Standard Units not aligned _ Bottom sida not Units aligned but Bet Top side not i at least one of be condition f aligned i aligned ams the highest Not interrupted i Lowest beam beans Highest beam interrupted and lowest exclu interrupted P ded is interrupted 32 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI 5 1 Correct Alignment Procedure The light curtain alignment can be effected only after having completed the mechanical installation and the electrical connections The following procedure has to be
39. r special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI Angled Fixing Bracket Mounting max 55 6 Angled fixing bracket Adjustable support Antivibration support Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 45 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI v 13 2 Test Pieces Model Description SC TP14 Test Piece 14mm L 300mm SC TP30 Test Piece 30mm L 300mm 13 3 Connection Cables Cable part number Description CONGSC 4P 5M 4 poles 5m cable CONGSC 4P 7M 4 poles 7m cable CONGSC 5P 5M 5 poles 5m cable CONGSC 5P 7M 5 poles 7m cable CONGSC 8P 5M 8 poles 5m cable CONGSC 8P 7M 8 poles 7m cable Ordering key CONG cable group SC safety light curtains xP number of poles xM cable length 46 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 14 Glossary CARLO GAVAZZI Yy ACTIVE OPTOELECTRONIC PROTECTIVE DEVICE AOPD its detection function is achieved thanks to the use of opto electronic receivers and emitters detecting the optical beam
40. rdance with the international Standards in force for safety in particular CEI IEC 61496 1 2004 Safety of machinery electro sensitive protective equipment Part 1 General prescriptions and tests CEI IEC 61496 2 2006 Safety of machinery electro sensitive protective equipment Particular requirements for equipment using active optoelectronic protective devices The device consisting of one emitter and one receiver housed inside strong aluminium profiles generates infrared beams that detect any opaque object positioned within the light curtain detection field The emitter and the receiver are equipped with the command and control functions The connections are made through a M12 connector located in the lower side of the profile The synchronisation between the emitter and the receiver takes place optically i e no electrical connection between the two units is required The microprocessor guarantees the check and the management of the beams that are sent and received through the units The microprocessor through some LEDs informs the operator about the general conditions of the safety light curtain see section 7 Diagnostic functions The device consists in 2 units that according to the model are composed by one or several emitting and receiving modules The receiver checks the control operations and safety actions During installation two yellow LEDs facilitate the alignment of both units see section 5 Alignment procedure
41. rotected internally against overvoltage and overcurrent The use of other external components is not recommended Example connection with safety relay 24 Vdc Automatic Start The figures show the connection between the safety light curtains and a safety relay functioning in the Automatic Start mode left side and Manual Start with monitoring right side NDo not use varistors RC circuits or LEDs in parallel at relay inputs or in series at OSSD outputs e The OSSD1 and OSSD2 safety contacts cannot be connected in series or in parallel but can be used separately Fig 16 If one of these configurations is erroneously used the device enters into the output failure condition see section 7 Diagnostic functions 28 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI e Connect both OSSDs to the activating device Failure to connect an OSSD to the activating device jeopardises the system safety degree that the light curtain has to control OY avo l P YES NO I OSSD OSSD ta 1 24VDC ajs 24VDC ol OSSD2 n me a n i i J Fig 17 ava l 7 aac NO I 4 NO OSSDI OSSD1 OSSD2 24VD
42. s interruptions inside the device caused by an opaque object present inside the specified detecting area An active optoelectronic protective device AOPD can operate both in emitter receiver mode and in retro reflective light cur tains BLOCK CONDITION BREAK status of the light curtain taking place when a suitably sized opaque object see DETEC TING CAPACITY interrupts one or several light curtain beams Under these conditions OSSD1 and OSS2 light curtain outputs are simultaneously switched OFF within the device response time CONTROLLED MACHINE machine having the potentially dangerous points protected by the light curtain or by another safety system CROSSING HAZARD situation under which an operator crossing the area controlled by the safety device and this latter stops and keeps the machine stopped until the hazard is eliminated and then enters the dangerous area Now the safety device could not be able to prevent or avoid an unexpected restart of the machine with the operator still present inside the dangerous area DANGEROUS AREA area representing an immediate or imminent physical hazard for the operator working inside it or who could get in contact with it DETECTING CAPACITY RESOLUTION limit of the parameter of the sensor function specified by the supplier that will enable the electrosensitive protective equipment ESPE In case of an active optoelectronic protective device AOPD with resolution we mean the minimum di
43. s wo N CARLO GAVAZZI Energy to Components www gavazziautomation com Printed on 100 recycled paper produced using post consumer de inked waste Specification are subjected to change without notice Illustrations are for example only
44. supply Vdd 24 Vdc 20 Unit current draw TX 2 W max Unit current draw RX 3 5 W max without load Outputs 2 PNP Short circuit protection 1 4 A max Output current 0 5 A max each output Output voltage status ON Vdd 1 V min Output voltage status OFF 0 2 V max Capacitive load 2 2 uF 24VDC max Response times See table below Protected height 150 1500mm Safety category Type 2 Auxiliary functions Reset Test Electrical protection Class Class III Connections M12 4 poles for emitter M12 5poles for receiver Cables length for power supply 50 m max OPTICAL DATA Emitting light Infrared LED 950 nm Resolution 30 90 Operating distance 0 2 19m Ambient light rejection IEC 61496 2 MECHANICAL AND ENVIRONMENTAL DATA Operating temperature 10 55 C Storage temperature 25 70 C Humidity 15 95 no condensation Mechanical protection IP 65 EN 60529 Vibrations Width 0 35 mm Frequency 10 55 Hz 20 sweep per axis 1octave min EN 60068 2 6 Shock resistance 16 ms 10 G 1 000 shocks per axis EN 60068 2 29 Housing material Painted aluminium yellow RAL 1003 Front side material PMMA Caps material PC MAKROLON Weight single unit 1 3 kg linear metre 40 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual S
45. t glass and by the dimensions listed in the table Controlled height Hp mm SC2 AR 30 150 D19 150 SC2 AR 30 300 D19 300 SC2 AR 30 450 D19 450 SC2 AR 30 600 D19 SC2 AR 30 750 D19 SC2 AR 30 900 D19 SERIE ma Teenweleg net om sc2aR so 60008 Jeo sczaR s0 s0008 e 8 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI 1 3 3 Minimum Installation Distance The safety device must be positioned at a specific safety distance Fig 3 This distance must ensure that the dangerous area cannot be reached before the dangerous motion of the machine has been stopped by the ESPE Electro Sensitive Protective Equipment The safety distance depends on 4 factors according to the EN 999 Standard e Response time of the ESPE the time between the effective beam interruption and the opening of the OSSD contacts e Machine stopping time the time between the effective opening of the contacts of the ESPE and the real stop of the dangerous motion of the machine e ESPE resolution e Approaching speed of the object to be detected Fig 3 The following formula is used for the calculation of the safety distance S K t t C where S Minimum safety distance in mm K Speed of the object limb or body approaching the dangerous area in mm sec t Respo
46. tain has a RESET function which is activated after an internal error The reset can be made only in case of optical error or OSSD error See sect 7 Diagnostic Functions The RESET function can be activated by keeping a normally open external contact RESET RESTART push button closed for at least 5 seconds The RESET signal is active high Safety light curtain status Faulty block Standard operating mode 24VDC 34 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 7 Diagnostic Function CARLO GAVAZZI 7 1 User Interface The operator can visualise the operating condition of the light curtains through the four LEDs positioned on the receiver unit and two LEDs on the emitter unit Fig 23 shows all signalling LEDs modes OFF ON and BLINKING LED OFF LED ON LED BLINKING Fig 23 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 35 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI Yy The operator is able to check the main causes of the system stop and failure using the same LEDs used for visualising the functions 7 2 Diagnostic Messages For receiver TEST rr cm curtain being tested the OSSD mt red ON shall be
47. the Fig 12 scheme TP30 for light curtains with 30 mm resolution for example SC2 AR 30 150 D19 Fig 12 e ESPE has to be correctly aligned press slightly on the product side in both directions the red LED must not turn on e The activation of the TEST function causes the opening of the OSSD outputs red LED on and controlled machine stop e The response time at machine STOP including the ESPE and machine response times must be included in the limits defined in the calculation of the safety distance refer to section 2 Installation modes e The safety distance between the dangerous parts and ESPE must comply with the requirements indicated in section 2 Installation modes e A person must not access or remain between ESPE and the dangerous parts of the machine e Access to the dangerous areas of the machine must not be possible from any unprotected area e ESPE must not be disturbed by external light sources ensuring that it remains in Normal operating function for at least 10 15 minutes and placing the specific test piece in the protected area in the SAFE condition for the same period e Verify the correspondence of all the accessory functions activating them in the different operating conditions Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 23 Instruction Manual Safety Light Curtain
48. timising the manufacturing process Advantages The use of the new SC2 range ensures the safety of the operator thanks to its enhanced response time meeting ergonomic and productivity requirements as the protected area always remains accesible when the machine stops 12 Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI Example 2 Cooling and conditioning systems Cooling and conditioning systems as well as automotive equipment and components are checked inside a machine to detect possible leaks by a helium mass spectrometer The point where these parts are positioned inside the measuring chamber requires a Type 2 protection ensuring a certain space saving and an easy access to the protected area Solution The SC2 safety light curtain series represents the ideal solution when the safety requirements and the application are considered Even when just one of the light curtain beams is interrupted the test machine is immediately stopped Advantages The SC2 light curtain meets the customer s needs when easy access iS necessary in presence of machine stops Easy installation configuration and use are other advantages Example 3 Automatic warehouses Operator protection in automatic warehouses
49. w to Choose the Device 1 3 How to choose the device There are at least three different main characteristics that should be considered when choosing a safety light curtain after having evaluated the risk assessment 1 3 1 Resolution The resolution of the device is the minimum dimension that an opaque object must have in order to obscure at least one of the beams that constitute the sensitive area The resolution strictly depends on the part of the body to be protected R 30 mm Hand protection R 90mm Presence control As shown in Fig 1 the resolution only depends on the geometrical characteristics of the lenses diameter and distance between centres and is independent from any environmental and operating conditions of the safety light curtain gt opaque a TX Fig 1 The resolution value is obtained applying the following formula R l d where Distance between two adjacent optics d Lens diameter Specifications are subject to change without notice Pictures are just an example For special features and or customization please ask to our sales network 20 01 2014 7 Instruction Manual Safety Light Curtain SC2 CARLO GAVAZZI 1 3 2 Controlled Height The controlled height is the height protected by the safety light curtain Hp dial e a ed To ai PROTECTED AREA mm 5 O al 9 i o a ee aj TX RX Fig 2 The SC2 controlled height is delimited by the yellow line pad printed on the fron
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