1、 IEC 61496-1 Edition 3.0 2012-04 INTERNATIONAL STANDARD NORME INTERNATIONALE Safety of machinery Electro-sensitive protective equipment Part 1: General requirements and tests Scurit des machines Equipements de protection lectro-sensibles Partie 1: Prescriptions gnrales et essais IEC61496-1:2012 THIS
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16、 INTERNATIONALE Safety of machinery Electro-sensitive protective equipment Part 1: General requirements and tests Scurit des machines Equipements de protection lectro-sensibles Partie 1: Prescriptions gnrales et essais INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATION
17、ALE XA ICS 13.110; 29.260.99 PRICE CODE CODE PRIX ISBN 978-2-88912-023-9 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
18、 Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 61496-1 IEC:2012 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope . 7 2 Normative references . 7 3 Terms and definitions . 8 4 Functional, design and environmental requirements . 13 4.1 Functional requirements 13
19、 4.1.1 Normal operation . 13 4.1.2 Sensing function 13 4.1.3 Types of ESPE 13 4.1.4 Types and required safety performance . 14 4.1.5 Required PLror SIL and corresponding ESPE type . 14 4.2 Design requirements . 14 4.2.1 Electrical supply 14 4.2.2 Fault detection requirements . 15 4.2.3 Electrical eq
20、uipment of the ESPE 16 4.2.4 Output signal switching devices (OSSD) 17 4.2.5 Indicator lights and displays 19 4.2.6 Adjustment means . 20 4.2.7 Disconnection of electrical assemblies 20 4.2.8 Non-electrical components 20 4.2.9 Common cause failures . 20 4.2.10 Programmable or complex integrated circ
21、uits 20 4.2.11 Software, programming, functional design of integrated circuits . 20 4.3 Environmental requirements 21 4.3.1 Ambient air temperature range and humidity 21 4.3.2 Electrical disturbances. 21 4.3.3 Mechanical environment 23 4.3.4 Enclosures 24 5 Testing . 24 5.1 General . 24 5.1.1 Type t
22、ests . 24 5.1.2 Test conditions 25 5.1.3 Test results . 26 5.2 Functional tests . 26 5.2.1 Sensing function 26 5.2.2 Response time 26 5.2.3 Limited functional tests 27 5.2.4 Periodic test 28 5.2.5 Indicator lights and displays 28 5.2.6 Means of adjustment . 28 5.2.7 Rating of components 28 5.2.8 Out
23、put signal switching devices (OSSD) 28 5.3 Performance testing under fault conditions 29 5.3.1 General . 29 5.3.2 Type 1 ESPE . 29 61496-1 IEC:2012 3 5.3.3 Type 2 ESPE . 29 5.3.4 Type 3 ESPE . 29 5.3.5 Type 4 ESPE . 30 5.4 Environmental tests . 30 5.4.1 Rated supply voltage . 30 5.4.2 Ambient temper
24、ature variation and humidity 30 5.4.3 Effects of electrical disturbances . 31 5.4.4 Mechanical influences . 33 5.4.5 Enclosures 33 5.5 Validation of programmable or complex integrated circuits 33 5.5.1 General . 33 5.5.2 Complex or programmable integrated circuits 34 5.5.3 Software, programming, fun
25、ctional design of integrated circuits . 34 5.5.4 Test results analysis statement 34 6 Marking for identification and for safe use 34 6.1 General . 34 6.2 ESPE supplied from a dedicated power supply 35 6.3 ESPE supplied from an internal electrical power source 35 6.4 Adjustment 35 6.5 Enclosures 35 6
26、6 Control devices . 35 6.7 Terminal markings . 35 6.8 Marking durability 36 7 Accompanying documents 36 Annex A (normative) Optional functions of the ESPE 39 Annex B (normative) Catalogue of single faults affecting the electrical equipment of the ESPE, to be applied as specified in 5.3 . 46 Annex C
27、 (informative) Conformity assessment . 47 Bibliography 48 Index 49 Figure 1 Examples of ESPEs using safety-related communication interfaces . 19 Figure 2 Test setup for the EMC test of ESPEs with safety-related communication interfaces 26 Table 1 Types and required safety performance . 14 Table 2 Re
28、quired PLror SIL and corresponding ESPE type . 14 Table 4 Supply voltage interruptions 21 4 61496-1 IEC:2012 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ SAFETY OF MACHINERY ELECTRO-SENSITIVE PROTECTIVE EQUIPMENT Part 1: General requirements and tests FOREWORD 1) The International Electrotechnical Co
29、mmission (IEC) is a worldwide organization for standardization comprising all national electrotechnical 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 an
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36、f conformity. IEC is not responsible for any services carried out by independent certification bodies. 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 an
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38、tion or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. 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 Publica
39、tion may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61496-1 has been prepared by IEC technical committee 44: Safety of machinery Electrotechnical aspects. This third edition cancels and replaces the sec
40、ond edition published in 2004 and its amendment 1 (2007). The document 44/615/CDV, circulated to the National Committees as amendment 2, led to the publication of this new edition. The main changes with respect to the previous edition are as follows: The design, test and verification requirements ha
41、ve been updated to make them consistent with the latest standards for functional safety and EMC. 61496-1 IEC:2012 5 The text of this standard is based on the following documents: CDV Report on voting 44/615/CDV 44/641/RVC Full information on the voting for the approval of this standard can be found
42、in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all the parts in the IEC 61496 series, published under the general title Safety of machinery Electro-sensitive protective equipment, can be found on th
43、e IEC website. A vertical line in the margin shows where the base publication has been modified by amendment 2. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data relat
44、ed to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 6 61496-1 IEC:2012 INTRODUCTION An electro-sensitive protective equipment (ESPE) is applied to machinery presenting a risk of personal injury. It provides protecti
45、on by causing the machine to revert to a safe condition before a person can be placed in a hazardous situation. This part of IEC 61496 provides general design and performance requirements of ESPEs for use over a broad range of applications. Essential features of equipment meeting the requirements of
46、 this standard are the appropriate level of safety-related performance provided and the built-in periodic functional checks/self-checks that are specified to ensure that this level of performance is maintained. Each type of machine presents its own particular hazards and it is not the purpose of thi
47、s standard to recommend the manner of application of the ESPE to any particular machine. The application of the ESPE should be a matter for agreement between the equipment supplier, the machine user and the enforcing authority, and in this context attention is drawn to the relevant guidance establis
48、hed internationally, for example ISO 12100. This part of IEC 61496 specifies technical requirements of electro-sensitive protective equipment. The application of this standard may require the use of substances and/or test procedures that could be injurious to health unless adequate precautions are t
49、aken. Conformance with this standard in no way absolves either the supplier or the user from statutory obligations relating to the safety and health of persons during the use of the equipment covered by this standard. Due to the complexity of the technology used to implement ESPEs, there are many issues that are highly dependent on analysis and expertise in specific test and measurement techniques. In order to provide a high le
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