SIST EN 61496-1:2014

Safety of machinery - Electro-sensitive protective equipment - Part 1: General requirements and tests

IEC 61496-1 specifies general requirements for the design, construction and testing of non-contact electro-sensitive protective equipment (ESPE) designed specifically to detect persons as part of a safety related system. Special attention is directed to functional and design requirements that ensure an appropriate safety-related performance is achieved. An ESPE may include optional safety-related functions, the requirements for which are given in Annex A. The particular requirements for specific types of sensing function are given in other parts of this standard. This standard does not specify the dimensions or configuration of the detection zone and its disposition in relation to hazards in 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. While a data interface can be used to control optional safety-related ESPE functions, this standard does not provide specific requirements. Requirements for these safety-related functions can be determined by consulting other standards (for example, IEC 61508, IEC/TS 62046, IEC 62061, and ISO13849-1). This standard may be relevant to 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 can be necessary, for example when the materials that have to be recognized by the sensing function have different properties from those of persons. This standard does not deal with electromagnetic compatibility (EMC) emission requirements.

Sicherheit von Maschinen - Berührungslos wirkende Schutzeinrichtungen - Teil 1: Allgemeine Anforderungen und Prüfungen

Sécurité des machines - Equipements de protection électro-sensibles - Partie 1: Prescriptions générales et essais

La CEI 61496-1:2012 définit les prescriptions générales de conception, de construction et d'essai des équipements de protection électro-sensibles (ESPE) sans contact spécifiquement conçus pour détecter des personnes au sein d'un système relatif à la sécurité. Une attention particulière est portée sur les prescriptions de fonctionnement et de conception assurant que le niveau de sécurité approprié est atteint. Un ESPE peut proposer des fonctions optionnelles, liées à la sécurité: les prescriptions pour celles-ci sont énumérées en Annexe A. Cette troisième édition de la CEI 61496-1 annule et remplace la deuxième édition parue en 2004 et son amendement 1 (2007). Par rapport à l'édition précédente, les changements majeurs sont les suivants: les exigences de conception, d'essai et de vérification ont été mises à jour pour les rendre cohérentes avec les normes les plus récentes relatives à la sécurité fonctionnelle et à la CEM (compatibilité électromagnétique).

Varnost strojev - Električno občutljiva varovalna oprema - 1. del: Splošne zahteve in preskusi (IEC 61496-1:2012)

General Information

• Status: Withdrawn
• Publication Date: 16-Feb-2014
• Withdrawal Date: 30-May-2023
• ICS: 13.110 - Safety of machinery
• ICS: 31.260 - Optoelectronics. Laser equipment
• Technical Committee: MOV - Measuring equipment for electromagnetic quantities
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 30-May-2023
• Due Date: 22-Jun-2023
• Completion Date: 31-May-2023
• Directive: 2004/108/EU - DIRECTIVE 2004/108/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Ref Project: EN 61496-1:2013 - Safety of machinery - Electro-sensitive protective equipment - Part 1: General requirements and tests

Relations

• Corrected By: SIST EN 61496-1:2014/AC:2015 - Safety of machinery - Electro-sensitive protective equipment - Part 1: General requirements and tests
• Effective Date: 05-Dec-2017
• Replaced By: SIST EN IEC 61496-1:2020 - Safety of machinery - Electro-sensitive protective equipment - Part 1: General requirements and tests (IEC 61496-1:2020)
• Effective Date: 29-Sep-2020
• Replaces: SIST EN 61496-1:2005/A1:2009 - Safety of machinery - Electro-sensitive protective equipment -- Part 1: General requirements and tests
• Effective Date: 07-Jun-2022
• Replaces: SIST EN 61496-1:2005 - Safety of machinery - Electro-sensitive protective equipment -- Part 1: General requirements and tests
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61496-1:2014
01-april-2014
1DGRPHãþD
SIST EN 61496-1:2005
SIST EN 61496-1:2005/A1:2009
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Safety of machinery - Electro-sensitive protective equipment - Part 1: General
requirements and tests
Sicherheit von Maschinen - Berührungslos wirkende Schutzeinrichtungen - Teil 1:
Allgemeine Anforderungen und Prüfungen
Sécurité des machines - Equipements de protection électro-sensibles - Partie 1:
Prescriptions générales et essais
Ta slovenski standard je istoveten z: EN 61496-1:2013
ICS:
13.110 Varnost strojev Safety of machinery
31.260 Optoelektronika, laserska Optoelectronics. Laser
oprema equipment
SIST EN 61496-1:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61496-1:2014

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SIST EN 61496-1:2014

EUROPEAN STANDARD
EN 61496-1

NORME EUROPÉENNE
November 2013
EUROPÄISCHE NORM

ICS 13.110; 29.260.99 Supersedes EN 61496-1:2004


English version


Safety of machinery -
Electro-sensitive protective equipment -
Part 1: General requirements and tests
(IEC 61496-1:2012)


Sécurité des machines -  Sicherheit von Maschinen -
Equipements de protection électro- Berührungslos wirkende
sensibles - Schutzeinrichtungen -
Partie 1: Prescriptions générales et essais Teil 1: Allgemeine Anforderungen und
(CEI 61496-1:2012) Prüfungen
(IEC 61496-1:2012)





This European Standard was approved by CENELEC on 2012-05-10. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the CEN-CENELEC Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61496-1:2013 E

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SIST EN 61496-1:2014
EN 61496-1:2013 - 2 -
Foreword
The text of document 44/615/CDV, future edition 3 of IEC 61496-1, prepared by IEC/TC 44 "Safety of
machinery - Electrotechnical aspects" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 61496-1:2013.

The following dates are fixed:
• latest date by which the document has (dop) 2014-05-29
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2015-05-10
• latest date by which the national
standards conflicting with the
document have to be withdrawn

This document supersedes EN 61496-1:2004.

EN 61496-1:2013 includes the following significant technical changes with respect to EN 61496-1:2004:

The design, test and verification requirements have been updated to make them consistent with the latest
standards for functional safety and EMC.

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.

This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).

For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.

Endorsement notice
The text of the International Standard IEC 61496-1:2012 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60812 NOTE  Harmonized as EN 60812.
IEC 61025 NOTE  Harmonized as EN 61025.

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SIST EN 61496-1:2014
- 3 - EN 61496-1:2013
Annex ZA
(normative)
Normative references to i nternational publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year

IEC 60068-2-6 - Environmental testing - EN 60068-2-6 -
Part 2-6: Tests - Test Fc: Vibration
(sinusoidal)


IEC 60068-2-27 - Environmental testing - EN 60068-2-27 -
Part 2-27: Tests - Test Ea and guidance:
Shock


IEC 60204-1 (mod) 2005 Safety of machinery - Electrical equipment of EN 60204-1 2006
+ A1 2008 machines - + corr. February 2010
Part 1: General requirements + A1 2009


IEC 60445 - Basic and safety principles for man-machine EN 60445 -
interface, marking and identification -
Identification of equipment terminals,
conductor terminations and conductors


IEC 60447 - Basic and safety principles for man-machine EN 60447 -
interface, marking and identification -
Actuating principles


IEC 60529 - Degrees of protection provided by enclosures - -
(IP Code)


IEC 60947-1 2007 Low-voltage switchgear and controlgear - EN 60947-1 2007
+ A1 2010 Part 1: General rules + A1 2011


IEC 61000-4-2 - Electromagnetic compatibility (EMC) - EN 61000-4-2 -
Part 4-2: Testing and measurement
techniques - Electrostatic discharge immunity
test


IEC 61000-4-3 - Electromagnetic compatibility (EMC) - EN 61000-4-3 -
Part 4-3: Testing and measurement
techniques - Radiated, radio-frequency,
electromagnetic field immunity test


IEC 61000-4-4 2004 Electromagnetic compatibility (EMC) - EN 61000-4-4 2004
Part 4-4: Testing and measurement
techniques - Electrical fast transient/burst
immunity test


IEC 61000-4-5 2005 Electromagnetic compatibility (EMC) - EN 61000-4-5 2006
Part 4-5: Testing and measurement
techniques - Surge immunity test


IEC 61000-4-6 - Electromagnetic compatibility (EMC) - EN 61000-4-6 -
Part 4-6: Testing and measurement
techniques - Immunity to conducted
disturbances, induced by radio-frequency
fields


IEC 61000-6-2 - Electromagnetic compatibility (EMC) - EN 61000-6-2 -
Part 6-2: Generic standards - Immunity for
industrial environments

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SIST EN 61496-1:2014
EN 61496-1:2013 - 4 -
Publication Year Title EN/HD Year
IEC 61131-2 2007 Programmable controllers - EN 61131-2 2007
Part 2: Equipment requirements and tests


IEC 61508 Series Functional safety of EN 61508 Series
electrical/electronic/programmable electronic
safety-related systems


IEC/TS 62046 - Safety of machinery - Application of protective CLC/TS 62046 -
equipment to detect the presence of persons


IEC 62061 - Safety of machinery - Functional safety of EN 62061 -
safety-related electrical, electronic and
programmable electronic control systems


ISO 9001 - Quality management systems - Requirements EN ISO 9001 -


ISO 12100 2010 Safety of machinery - General principles for EN ISO 12100 2010
design - Risk assessment and risk reduction


ISO 13849-1 - Safety of machinery - Safety-related parts of EN ISO 13849-1 -
control systems -
Part 1: General principles for design


ISO 13849-2 2003 Safety of machinery - Safety-related parts of EN ISO 13849-2 2008
control systems -
Part 2: Validation

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SIST EN 61496-1:2014
- 5 - EN 61496-1:2013
Annex ZZ
(informative)

Coverage of Essential Requirements of EU Directives


This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and within its scope the standard covers only the
following essential requirement out of those given in annex I of the EU Directive 2006/42/EC:

- 1.2.1
- 1.4.3

Compliance with this standard provides one means of conformity with the specified essential
requirements of the Directive concerned.

WARNING - Other requirements and other EU Directives may be applicable to the products falling within
the scope of this standard.

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SIST EN 61496-1:2014

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SIST EN 61496-1:2014



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




Sécurité des machines – Equipements de protection électro-sensibles –

Partie 1: Prescriptions générales et essais
















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

XA
CODE PRIX


ICS 13.110; 29.260.99 ISBN 978-2-8322-0061-2



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN 61496-1:2014
– 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
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 PL or SIL and corresponding ESPE type . 14
r
4.2 Design requirements . 14
4.2.1 Electrical supply . 14
4.2.2 Fault detection requirements . 15
4.2.3 Electrical equipment 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 circuits . 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 tests . 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 Output 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

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SIST EN 61496-1:2014
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 temperature 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, functional 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
6.6 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 (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 – Required PL or SIL and corresponding ESPE type . 14
r
Table 4 – Supply voltage interruptions . 21

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SIST EN 61496-1:2014
– 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 Commission (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 and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical 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, governmental 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 or 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 international 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 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 indicated 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.
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 damage 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 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 Publication 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 second 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 have been updated to make them consistent with the latest
standards for functional safety and EMC.

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SIST EN 61496-1:2014
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 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 the 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
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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SIST EN 61496-1:2014
– 6 – 61496-1 © IEC:2012
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.
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 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 this
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 established 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 taken.
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 level of confidence, independent review by relevant
experts is recommended.

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SIST EN 61496-1:2014
61496-1 © IEC:2012 – 7 –
SAFETY OF MACHINERY –
ELECTRO-SENSITIVE PROTECTIVE EQUIPMENT –

Part 1: General requirements and tests



1 Scope
This part of IEC 61496 specifies general requirements for the design, construction and testing
of non-contact electro-sensitive protective equipment (ESPE) designed specifically to detect
persons as part of a safety related system. Special attention is directed to functional and
design requirements that ensure an appropriate safety-related performance is achieved. An
ESPE may include optional safety-related functions, the requirements for which are given in
Annex A.
The particular requirements for specific types of sensing function are given in other parts of
this standard.
This standard does not specify the dimensions or configuration of the detection zone and its
disposition in relation to hazards in 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.
While a data interface can be used to control optional safety-related ESPE functions
(Annex A), this standard does not provide specific requirements. Requirements for these
safety-related functions can be determined by consulting other standards (for example,
IEC 61508, IEC/TS 62046, IEC 62061, and ISO13849-1).
This standard may be relevant to 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 can be necessary, for example when the materials that
have to be recognized by the sensing function have different properties from those of
persons.
This standard does not deal with electromagnetic compatibility (EMC) emission requirements.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60068-2-6, Environmental testing – Part 2-6: Tests – Test Fc: Vibration (sinusoidal)
IEC 60068-2-27, Environmental testing – Part 2-27: Tests – Test Ea and guidance: Shock
IEC 60204-1:2009, Safety of machinery – Electrical equipment of machines – Part
...