BS DD CLC TS 61496-3-2008 Safety of machinery - Electro-sensitive protective equipment - Particular requirements for active opto-electronic protective devices responsive to diffuse.pdf

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1、DRAFT FOR DEVELOPMENTDD CLC/TS 61496-3:2008Safety of machinery Electro-sensitive protective equipment Part 3: Particular requirements for Active Opto-electronic Protective Devices responsive to Diffuse Reflection (AOPDDR)ICS 13.110; 31.260g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g

2、44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58DD CLC/TS 61496-3:2008This Draft for Development was published under the authority of the Standards Policy and Strategy Committee on 30 September 2008 BSI 2008IS

3、BN 978 0 580 55178 9National forewordThis Draft for Development is the UK implementation of CLC/TS 61496-3:2008. It supersedes DD CLC/TS 61496-3:2003 which is withdrawn.This publication is not to be regarded as a British Standard.It is being issued in the Draft for Development series of publications

4、 and is of a provisional nature. It should be applied on this provisional basis, so that information and experience of its practical application can be obtained.Comments arising from the use of this Draft for Development are requested so that UK experience can be reported to the European organizatio

5、n responsible for its conversion to a European standard. A review of this publication will be initiated not later than three years after its publication by the European organization so that a decision can be taken on its status. Notification of the start of the review period will be made in an annou

6、ncement in the appropriate issue of Update Standards.According to the replies received by the end of the review period, the responsible BSI Committee will decide whether to support the conversion into a European Standard, to extend the life of the Technical Specification or to withdraw it. Comments

7、should be sent to the Secretary of the responsible BSI Technical Committee at British Standards House, 389 Chiswick High Road, London W4 4AL.The UK participation in its preparation was entrusted to Technical Committee MCE/3, Safeguarding of machinery.A list of organizations represented on this commi

8、ttee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Amendments/corrigenda issued since publicationDate CommentsTECHNICAL SPECIFICATION CLC/TS 61496-3 SPCIFICATION T

9、ECHNIQUE TECHNISCHE SPEZIFIKATION May 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploita

10、tion in any form and by any means reserved worldwide for CENELEC members. Ref. No. CLC/TS 61496-3:2008 E ICS 13.110; 31.260 Supersedes CLC/TS 61496-3:2003English version Safety of machinery - Electro-sensitive protective equipment - Part 3: Particular requirements for Active Opto-electronic Protecti

11、ve Devices responsive to Diffuse Reflection (AOPDDR) (IEC 61496-3:2008) Scurit des machines - Equipements de protection lectro-sensibles - Partie 3: Exigences particulires pour les quipements utilisant des dispositifs protecteurs optolectroniques actifs sensibles aux rflexions diffuses (AOPDDR) (CEI

12、 61496-3:2008) Sicherheit von Maschinen - Berhrungslos wirkende Schutzeinrichtungen - Teil 3: Besondere Anforderungen an aktive optoelektronische diffuse Reflektion nutzende Schutzeinrichtungen (AOPDDR)(IEC 61496-3:2008) This Technical Specification was approved by CENELEC on 2008-03-01. CENELEC mem

13、bers are required to announce the existence of this TS in the same way as for an EN and to make the TS available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force. CENELEC members are the national electrotechnical committees of Austr

14、ia, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. -

15、Foreword The text of document 44/572/FDIS, future edition 2 of IEC 61496-3, prepared by IEC TC 44, Safety of machinery - Electrotechnical aspects, in collaboration with the Technical Committee CENELEC TC 44X, Safety of machinery: electrotechnical aspects, was submitted to the IEC-CENELEC parallel vo

16、te and was approved by CENELEC as CLC/TS 61496-3 on 2008-03-01. This Technical Specification supersedes CLC/TS 61496-3:2003. The most important changes and improvements compared to CLC/TS 61496-3:2003 are: extension of the range of detection capability covered by this part of the standard from 50 mm

17、 to 100 mm to the range of 30 mm to 200 mm; clarification of requirements for the selection of multiple detection zones (Clause A.10); more detailed information about the use of an AOPDDR as a whole body trip device by extension of Clause A.12 and a new Clause A.13; improved description of the relat

18、ionship between ranging accuracy and probability of detection (Annex BB). This Technical Specification is to be used in conjunction with EN 61496-1. The following date was fixed: latest date by which the existence of the CLC/TS has to be announced at national level (doa) 2008-06-01 Annex ZA has been

19、 added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61496-3:2008 was approved by CENELEC as a Technical Specification without any modification. _ 2 CLC/TS 61496-3:2008CONTENTS INTRODUCTION.5 1 Scope.6 2 Normative references7 3 Terms and definitions .7 4 Requirements .8

20、 4.1 Functional requirements 8 4.2 Design requirements8 4.3 Environmental requirements 15 5 Testing .17 5.1 General .17 5.2 Functional tests .24 5.3 Performance testing under fault conditions.31 5.4 Environmental tests .31 6 Marking for identification and for safe use .45 6.1 General .45 7 Accompany

21、ing documents 45 Annex A (normative) Optional functions of the ESPE 47 Annex B (normative) Catalogue of single faults affecting the electrical equipment of the ESPE, to be applied as specified in 5.3 .55 Annex AA (informative) Examples of the use of an AOPDDR in different applications56 Annex BB (in

22、formative) Relationship between ranging accuracy and probability of detection.60 Bibliography68 Figure 1 Detection zone of an AOPDDR Example 1 .11 Figure 2 Detection zone of an AOPDDR Example 2 .12 Figure 3 Minimum diffuse reflectivity of materials14 Figure 4 Influence on detection capability by inc

23、andescent light Example 1 18 Figure 5 Influence on detection capability by incandescent light Example 2 19 Figure 6 Influence on detection capability by light reflected by the background20 Figure 7 Influence on detection capability by stroboscopic light Example 1 .21 Figure 8 Influence on detection

24、capability by stroboscopic light Example 2 .22 Figure 9 Light interference test.23 Figure 10 Interference between two AOPDDRs of identical design 24 Figure 11 Configuration for the endurance test Example 1 .29 Figure 12 Configuration for the endurance test Example 2 .30 Figure 13a Test of homogeneou

25、s pollution Examples of different designs of AOPDDR housings and optical windows without foil for simulation of homogeneous pollution41 3 CLC/TS 61496-3:2008Annex ZA (normative) Normative references to international publications with theircorresponding European publications69Figure 13b Test of homog

26、eneous pollution Examples of different designs of AOPDDR housings and optical windows Examples of correct positions of the foil42 Figure 13c Test of homogeneous pollution Examples of different designs of AOPDDR housings and optical windows Examples of incorrect positions of the foil .42 Figure 14 In

27、fluence on detection capability by background 43 Figure A.1 Use of an AOPDDR as a whole-body trip device Example 1 50 Figure A.2 Use of an AOPDDR as a whole-body trip device Example 2 51 Figure A.3 Use of an AOPDDR as parts of a body trip device Example 153 Figure A.4 Use of an AOPDDR as parts of a

28、body trip device Example 253 Figure AA.1 Example of the use of an AOPDDR on machinery57 Figure AA.2 Example of the use of an AOPDDR on an AGV58 Figure BB.1 Relationship between ranging accuracy and detection zone .60 Figure BB.2 Relationship between ranging accuracy, detection zone and the probabili

29、stic part of the tolerance zone Example 1 61 Figure BB.3 Relationship between ranging accuracy, detection zone and the probabilistic part of the tolerance zone Example 2 62 Figure BB.4 Relationship between ranging accuracy, detection zone and tolerance zone Example 1 .63 Figure BB.5 Relationship bet

30、ween ranging accuracy, detection zone and tolerance zone Example 2 .64 Figure BB.6 Reference boundary monitoring Distribution of measurement values Example 1.65 Figure BB.7 Reference boundary monitoring Distribution of measurement values Example 2.65 Figure BB.8 POD of a single measurement (logarith

31、mic) for a MooM-evaluation with 1 M 50 .66 Figure BB.9 POD of a single measurement for a MooM-evaluation with 1 M 50 in relation to in the case of a normal distribution.67 Table 1 Minimum tests required for the verification of detection capability requirements (see also 4.2.12.1) .26 Table 2 Overvie

32、w of light interference tests 35 4 CLC/TS 61496-3:2008INTRODUCTION An electro-sensitive protective equipment (ESPE) is applied to machinery presenting a risk of personal injury. It provides protection by causing the machine to revert to a safe condition before a person can be placed in a hazardous s

33、ituation. This part supplements or modifies the corresponding clauses in IEC 61496-1 to specify particular requirements for the design, construction and testing of electro-sensitive protective equipment (ESPE) for the safeguarding of machinery, employing active opto-electronic protective devices res

34、ponsive to diffuse reflection (AOPDDRs) for the sensing function. Where a particular clause or subclause of part 1 is not mentioned in this part 3, that clause or subclause applies as far as is reasonable. Where this part states “addition“, “modification“ or “replacement“, the relevant text of part

35、1 should be adapted accordingly. Supplementary Annexes are entitled AA, BB, etc. Each type of machine presents its own particular hazards, and it is not the purpose of this standard to recommend the manner of application of the ESPE to any particular machine. The application of the ESPE should be a

36、matter for agreement between the equipment supplier, the machine user and the enforcing authority. In this context, attention is drawn to the relevant guidance established internationally, for example, ISO/TR 12100. Due to the complexity of the technology there are many issues that are highly depend

37、ent on analysis and expertise in specific test and measurement techniques. In order to provide a high level of confidence, independent review by relevant expertise is recommended. 5 CLC/TS 61496-3:2008SAFETY OF MACHINERY ELECTRO-SENSITIVE PROTECTIVE EQUIPMENT Part 3: Particular requirements for Acti

38、ve Opto-electronic Protective Devices responsive to Diffuse Reflection (AOPDDR) 1 Scope Replacement: This part of IEC 61496 specifies additional requirements for the design, construction and testing of non-contact electro-sensitive protective equipment (ESPE) designed specifically to detect persons

39、as part of a safety related system, employing active opto-electronic protective devices responsive to diffuse reflection (AOPDDRs) for the sensing function. Special attention is directed to requirements which ensure that an appropriate safety-related performance is achieved. An ESPE may include opti

40、onal safety-related functions, the requirements for which are given both in Annex A of this part and in Annex A of IEC 61496-1. This part does not specify the dimensions or configurations of the detection zone and its disposition in relation to hazardous parts for any particular application, nor wha

41、t constitutes a hazardous state of any machine. It is restricted to the functioning of the ESPE and how it interfaces with the machine. AOPDDRs are devices that have a detection zone specified in two dimensions wherein radiation in the near infrared range is emitted by a transmitter element(s). When

42、 the emitted radiation impinges on an object (for example, a person or part of a person), a portion of the emitted radiation is reflected to a receiving element(s) by diffuse reflection whereby the presence of the object can be detected. NOTE 1 Under certain circumstances, limitations of the sensor

43、in relation to its use need to be considered. For example: Objects that generate mirror-like (specular) reflections may not be detected if the diffuse reflectance value is less than that specified for the “black“ test piece. The determination of the minimal reflection factors for the detection of ob

44、stacles is based on the clothing of a person. Objects having a reflectivity lower than that considered in this part may not be detected. Excluded from this part are AOPDDRs employing radiation of wavelength outside the range 820 nm to 946 nm, and those employing radiation other than that generated b

45、y the AOPDDR itself. For sensing devices that employ radiation of wavelengths outside this range, this part may be used as a guide. This part is relevant for AOPDDRs having a stated detection capability in the range from 30 mm to 200 mm. AOPDDRs intended for use as trip device using whole-body detec

46、tion with normal approach to the detection zone and having a stated detection capability not exceeding 200 mm shall meet the requirements of Clause A.12. AOPDDRs intended for a direction of approach normal to the detection zone and having a stated detection capability in the range from 30 mm to 70 m

47、m shall meet the requirements of Clause A.13. NOTE 2 According to ISO 13855 (EN 999), 6.3 foreseeable angles of approach greater than 30” should be considered normal approach and foreseeable angles of approach less than 30” should be considered parallel approach. NOTE 3 According to ISO 13855 (EN 99

48、9), 6.2 when electro-sensitive protective equipment employing active opto-electronic protective devices is used for direction of approach parallel to the detection zone the device should have a detection capability in the range from 50 mm to 117 mm. 6 CLC/TS 61496-3:2008This part may be relevant to

49、applications other than those for the protection of persons, for example, for the protection of machinery or products from mechanical damage. In those applications, different requirements may be necessary, for example when the materials that have to be recognized by the sensing function have different properties from those of persons and their clothing. This part does not deal with electromagnetic co