BS PD IEC TS 61496-4-2-2014 Safety of machinery Electro-sensitive protective equipment Particular requirements for equipment using vision based protective devices (VBPD) Additionali.pdf

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1、BSI Standards PublicationSafety of machinery Electro-sensitive protective equipmentPart 4-2: Particular requirements for equipment using vision based protective devices (VBPD) Additional requirements when using reference pattern techniques (VBPDPP)PD IEC/TS 61496-4-2:2014National forewordThis Publis

2、hed Document is the UK implementation of IEC/TS 61496-4-2:2014.The UK participation in its preparation was entrusted to TechnicalCommittee MCE/3, Safeguarding of machinery.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purpo

3、rt to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 71920 2ICS 13.110; 29.260.99Compliance with a British Standard cannot confer immunity fromlegal obl

4、igations.This Published Document was published under the authority of theStandards Policy and Strategy Committee on 31 July 2014.Amendments/corrigenda issued since publicationDate Text affectedPUBLISHED DOCUMENTPD IEC/TS 61496-4-2:2014IEC TS 61496-4-2 Edition 1.0 2014-06 TECHNICAL SPECIFICATION SPEC

5、IFICATION TECHNIQUE Safety of machinery Electro-sensitive protective equipment Part 4-2: Particular requirements for equipment using vision based protective devices (VBPD) Additional requirements when using reference pattern techniques (VBPDPP) Scurit des machines quipements de protection lectro-sen

6、sibles Partie 4-2: Exigences particulires pour les quipements utilisant des dispositifs protecteurs par vision (VBPD) Exigences supplmentaires pour lutilisation de techniques de motifs de rfrence (VBPDPP) INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE X ICS 13.1

7、10; 29.260.99 PRICE CODE CODE PRIX ISBN 978-2-8322-1568-5 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous

8、 assurer que vous avez obtenu cette publication via un distributeur agr. colourinsidePD IEC/TS 61496-4-2:2014 2 IEC TS 61496-4-2:2014 IEC 2014 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope 7 2 Normative references . 7 3 Terms and definitions 8 4 Functional, design and environmental requirements . 1

9、0 4.1 Functional requirements 10 4.2 Design requirements . 12 4.3 Environmental requirements 17 5 Testing 19 5.1 General . 19 5.2 Functional tests . 19 5.3 Performance testing under fault conditions 22 5.4 Environmental tests . 23 6 Marking for identification and for safe use 31 6.1 General . 31 7 A

10、ccompanying documents 31 Annex A (normative) Optional functions of the ESPE 33 A.9 Setting the detection zone and/or other safety-related parameters . 33 A.9.1 Functional requirements . 33 A.9.2 Verification 33 A.10 Selection of multiple detection zones . 34 A.10.1 Functional requirements . 34 A.10.

11、2 Verification 34 A.11 Automatic setting of detection zones . 35 A.11.1 Functional requirements . 35 A.11.2 Verification 35 Annex B (normative) Catalogue of single faults affecting the electrical equipment of the ESPE, to be applied as specified in 5.3 . 36 B.7 Imaging sensor . 36 Annex AA (informat

12、ive) The positioning of VBPD in respect of parts of the human body 37 AA.1 Calculation of distances for electro-sensitive protective equipment employing vision based protective devices (VBPD) . 37 AA.2 Calculation of the overall minimum distance So37 AA.3 Vision based protective devices with a detec

13、tion capability 40 mm and 55 mm . 38 AA.4 Vision based protective devices with a detection capability 55 mm and 200 mm. 39 AA.5 Examples of detection zone and tolerance zone . 39 Bibliography 44 Figure 1 Image planes in VBPDPP . 9 Figure 2 Side view of VBPDPP using a passive reference pattern . 11 F

14、igure 3 Light intensity measurement setup for indirect light tests . 28 Figure 4 Light intensity measurement setup for direct light tests 29 PD IEC/TS 61496-4-2:2014IEC TS 61496-4-2:2014 IEC 2014 3 Figure AA.1 Minimum distance S Example 1 40 Figure AA.2 Overall minimum distance Sowithout tolerance z

15、one Example 1 . 40 Figure AA.3 Overall minimum distance Soincluding tolerance zone Example 1. 41 Figure AA.4 Minimum distance S Example 2 41 Figure AA.5 Overall minimum distance Sowithout tolerance zone Example 2 . 42 Figure AA.6 Overall minimum distance Soincluding tolerance zone Example 2. 43 Tabl

16、e 1 Verification of detection capability requirements (see also 4.2.12) 20 Table 2 Overview of light interference tests 24 PD IEC/TS 61496-4-2:2014 4 IEC TS 61496-4-2:2014 IEC 2014 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ SAFETY OF MACHINERY ELECTRO-SENSITIVE PROTECTIVE EQUIPMENT Part 4-2: Partic

17、ular requirements for equipment using vision based protective devices (VBPD) Additional requirements when using reference pattern techniques (VBPDPP) FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnic

18、al committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, T

19、echnical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, gover

20、nmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions o

21、r agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for internationa

22、l use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to

23、promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly i

24、ndicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies

25、. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property d

26、amage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this p

27、ublication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or al

28、l such patent rights. The main task of IEC technical committees is to prepare International Standards. In exceptional circumstances, a technical committee may propose the publication of a technical specification when the required support cannot be obtained for the publication of an International Sta

29、ndard, despite repeated efforts, or the subject is still under technical development or where, for any other reason, there is the future but no immediate possibility of an agreement on an International Standard. Technical specifications are subject to review within three years of publication to deci

30、de whether they can be transformed into International Standards. PD IEC/TS 61496-4-2:2014IEC TS 61496-4-2:2014 IEC 2014 5 IEC/TS 61496-4-2, which is a technical specification, has been prepared by IEC technical committee 44: Safety of machinery Electrotechnical aspects. The text of this technical sp

31、ecification is based on the following documents: Enquiry draft Report on voting 44/677/DTS 44/689/RVC Full information on the voting for the approval of this technical specification can be found in the report on voting indicated in the above table. This publication has been drafted in accordance wit

32、h the ISO/IEC Directives, Part 2. This part is to be used in conjunction with IEC 61496-1:2012. This part supplements or modifies the corresponding clauses in IEC 61496-1:2012 to specify particular requirements for the design, construction and testing of electro-sensitive protective equipment (ESPE)

33、 for the safeguarding of machinery, employing vision based protective devices (VBPD) using passive reference pattern techniques (VBPDPP) for the sensing function. Where a particular clause or subclause of Part 1 is not mentioned in this Part 4-2, that clause or subclause applies as far as is reasona

34、ble. Where this part states “addition“, “modification“ or “replacement“, the relevant text of Part 1 is adapted accordingly. Clauses and subclauses which are additional to those of Part 1 are numbered sequentially, following on the last available number in Part 1.Terminological entries (in Clause 3)

35、 which are additional to those in Part 1 are numbered starting from 3.4201. Additional annexes are lettered from AA onwards. A list of all parts in the IEC 61496 series, published under the general title Safety of machinery Electro-sensitive protective equipment, can be found on the IEC website. IMP

36、ORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. PD IEC/TS 61496-4-2:2014 6 IEC TS 61496-4-2:2014

37、IEC 2014 INTRODUCTION 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 situation. The working group responsible for d

38、rafting this technical specification was concerned that, due to the complexity of the technology, there are many issues that are highly dependent on analysis and expertise in specific test and measurement techniques. In order to provide a high level of confidence, independent review by relevant expe

39、rtise is required. They considered that if this high level of confidence could not be established these devices would not be suitable for use in safety related applications. PD IEC/TS 61496-4-2:2014IEC TS 61496-4-2:2014 IEC 2014 7 SAFETY OF MACHINERY ELECTRO-SENSITIVE PROTECTIVE EQUIPMENT Part 4-2:

40、Particular requirements for equipment using vision based protective devices (VBPD) Additional requirements when using reference pattern techniques (VBPDPP) 1 Scope Replacement: This part of IEC 61496 specifies requirements for the design, construction and testing of electro-sensitive protective equi

41、pment (ESPE) designed specifically to detect persons as part of a safety-related system, employing vision-based protective devices (VBPDs) using passive reference patterns (VBPDPP) for the sensing function. Special attention is directed to features which ensure that an appropriate safety-related per

42、formance is achieved. An ESPE may include optional safety-related functions, the requirements for which are given in Annex A of IEC 61496-1:2012 and this Technical Specification. This part of IEC 61496 does not specify the dimensions or configurations of the detection zone and its disposition in rel

43、ation to hazardous parts for any particular application, nor what constitutes a hazardous state of any machine. It is restricted to the functioning of the ESPE and how it interfaces with the machine. A VBPDPP is defined as consisting of a single image-sensing device viewing on a passive reference pa

44、ttern as the background and where the detection principle is based on blocking or partially preventing the view of the pattern. Information about the thickness, shape, surface characteristics or location of the object is not required for detection. For multi-image sensing devices, additional techniq

45、ues, requirements and test procedures can be necessary. This part of IEC 61496 is limited to automatic vision-based ESPEs that do not require human intervention for detection. It is limited to automatic vision-based ESPEs that detect objects entering into, or are present in, a detection zone(s). It

46、is limited to ESPEs using active illumination technique Excluded from this technical specfication are VBPDPPs employing radiation at wavelengths outside the range 400 nm to 1 500 nm. This document does not address those aspects required for complex classification or differentiation of the object det

47、ected. This part of IEC 61496 is relevant for VBPDPPs having a stated detection capability up to 200 mm. NOTE The positioning of VBPD in respect of parts of the human body is presented in Annex AA of this technical specification. This part of IEC 61496 does not deal with EMC emission requirements. 2

48、 Normative references Addition: PD IEC/TS 61496-4-2:2014 8 IEC TS 61496-4-2:2014 IEC 2014 IEC 60825-1:2007, Safety of laser products Part 1: Equipment classification and requirements IEC 61496-1:2012, Safety of machinery Electro-sensitive protective equipment Part 1: General requirements and tests I

49、EC 62471:2006, Photobiological safety of lamps and lamp systems ISO 13855:2010, Safety of machinery Positioning of safeguards with respect to the approach speeds of parts of the human body ISO 20471:2013, High-visibility clothing Test methods and requirements 3 Terms and definitions Replacement: 3.3 detection capability ability to detect the specified test pieces (see 4.2.13) in the specified detection zone Note 1 t

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