EN 61496-2:2013

Safety of machinery - Electro-sensitive protective equipment - Part 2: Particular requirements for equipment using active opto-electronic protective devices (AOPDs)

IEC 61496-2:2013 specifies requirements for the design, construction and testing of electro-sensitive protective equipment (ESPE) designed specifically to detect persons as part of a safety-related system, employing active opto-electronic protective devices (AOPDs) for the sensing function. Special attention is directed to features which ensure that an appropriate safety-related performance is achieved. An ESPE may include optional safety-related functions, the requirements for which are given in Annex A of IEC 61946-1:2012 and of this part. This third edition cancels and replaces the second edition published in 2006. It constitutes a technical revision and includes the following significant technical changes with respect to the previous edition: - Requirements have been corrected and made easier to understand. - Test procedures have been revised to make them easier to perform and to improve repeatability. - Guidance is provided for the evaluation and verification of AOPDs using design techniques for which the test procedures of this part are not sufficient.

Sicherheit von Maschinen - Berührungslos wirkende Schutzeinrichtungen - Teil 2: Besondere Anforderungen an Einrichtungen, welche nach dem aktiven opto-elektronischen Prinzip arbeiten

Sécurité des machines - Equipements de protection électro-sensibles - Partie 2: Exigences particulières à un équipement utilisant des appareils protecteurs optoélectroniques actifs (AOPD)

La CEI 61496-2:2013 définit les exigences de conception, de construction et d'essai d'équipements de protection électro-sensibles (ESPE) conçus spécialement pour détecter des personnes, comme partie d'un système relatif à la sécurité, utilisant des appareils protecteurs optoélectroniques actifs (AOPD) pour la fonction de détection. Une attention particulière est portée sur les caractéristiques assurant qu'une performance relative à la sécurité appropriée est atteinte. Un ESPE peut comporter des fonctions de sécurité optionnelles; les exigences pour ces fonctions sont données à l'Annexe A de la CEI 61946-1:2012 et de la présente Partie. Cette troisième édition annule et remplace la deuxième édition parue en 2006. Elle constitue une révision technique et inclut les modifications techniques majeures suivantes: - Les exigences ont été corrigées et sont plus faciles à comprendre. - Les méthodes d'essai ont été révisées pour être plus faciles à réaliser et pour améliorer la répétabilité. - Des recommandations sont fournies pour l'évaluation et la vérification des appareils protecteurs optoélectroniques actifs (AOPD) utilisant des techniques de conception pour lesquelles les méthodes d'essai de la présente partie ne sont pas suffisantes.

Varnost strojev - Električno občutljiva zaščitna oprema - 2. del: Posebne zahteve za opremo, ki uporablja aktivne optoelektronske zaščitne elemente (IEC 61496-2:2013)

To točko 1. dela nadomešča naslednje besedilo: Ta del standarda IEC 61496 navaja zahteve za načrtovanje, sestavo in preskušanje električno občutljive zaščitne opreme (ESPE), posebej zasnovane za zaznavanje oseb kot del varnostnega sistema, ki za zaznavanje uporablja optoelektronske zaščitne naprave (AOPD). Posebna pozornost je namenjena lastnostim, ki omogočajo ustrezno opravljanje varnostnih nalog. Električno občutljiva zaščitna oprema lahko vključuje izbirne funkcije, povezane z varnostjo, zahteve za katere so podane v dodatku A standarda IEC 61946-1:2012 in tega dela. Ta del standarda IEC 61496 ne navaja dimenzij ali oblike zaznavnega območja in njegove dispozicije v povezavi z nevarnimi deli za katero koli aplikacijo, niti ne opredeljuje, kaj je nevarno stanje za kateri koli stroj. Omejuje se na delovanje električno občutljive zaščitne opreme in njene povezave s strojem. Iz tega dela so izključene optoelektronske zaščitne naprave, ki uporabljajo sevanje pri valovnih dolžinah zunaj območja 400 nm do 1500 nm. Ta del standarda IEC 61496 se lahko uporablja tudi za primere rabe opreme, pri kateri cilj ni zaščita oseb, kot je varnost strojev ali izdelkov pred mehanskimi poškodbami. V teh primerih so morda potrebne dodatne zahteve, npr. ko imajo materiali, ki jih morajo funkcije za zaznavanje prepoznati, drugačne lastnosti kot osebe. Ta del standarda IEC 61496 ne obravnava zahtev glede oddajanja motenj v zvezi z elektromagnetno združljivostjo.

General Information

• Status: Withdrawn
• Publication Date: 12-Dec-2013
• Withdrawal Date: 11-Jul-2016
• ICS: 13.110 - Safety of machinery
• ICS: 29.260.99 - Other electrical equipment for working in special conditions
• Technical Committee: CLC/TC 44X - Safety of machinery: electrotchnical aspects
• Drafting Committee: IEC/TC 44 - IEC_TC_44
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 19-Aug-2023
• Completion Date: 19-Aug-2023
• Ref Project: SIST EN 61496-2:2014 - Safety of machinery - Electro-sensitive protective equipment - Part 2: Particular requirements for equipment using active opto-electronic protective devices (AOPDs)

Relations

• Replaces: CLC/TS 61496-2:2006 - Safety of machinery - Electro-sensitive protective equipment - Part 2: Particular requirements for equipment using active opto-electronic protective devices (AOPDs)
• Effective Date: 28-Jan-2023
• Replaced By: EN IEC 61496-2:2020 - Safety of machinery - Electro-sensitive protective equipment - Part 2: Particular requirements for equipment using active opto-electronic protective devices (AOPDs)
• Effective Date: 07-Apr-2020

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2014
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]DRSUHPRNLXSRUDEOMDDNWLYQHRSWRHOHNWURQVNH]DãþLWQHHOHPHQWH,(&

Safety of machinery - Electro-sensitive protective equipment - Part 2: Particular
requirements for equipment using active opto-electronic protective devices (AOPDs)
Sicherheit von Maschinen - Berührungslos wirkende Schutzeinrichtungen - Teil 2:
Besondere Anforderungen an Einrichtungen, welche nach dem aktiven opto-
elektronischen Prinzip arbeiten
Sécurité des machines - Equipement de protection électrosensible - Partie 2: Exigences
particulières à un équipement utilisant des dispositifs protecteurs optoélectroniques actifs
(AOPD)
Ta slovenski standard je istoveten z: EN 61496-2:2013
ICS:
13.110 Varnost strojev Safety of machinery
31.260 Optoelektronika, laserska Optoelectronics. Laser
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61496-2
NORME EUROPÉENNE
December 2013
EUROPÄISCHE NORM
ICS 13.110; 29.260.99 Supersedes CLC/TS 61496-2:2006

English version
Safety of machinery -
Electro-sensitive protective equipment -
Part 2: Particular requirements for equipment
using active opto-electronic protective devices (AOPDs)
(IEC 61496-2:2013)
Sécurité des machines -  Sicherheit von Maschinen -
Equipements de protection électro-sensibles - Berührungslos wirkende Schutzeinrichtungen -
Partie 2: Exigences particulières à un Teil 2: Besondere Anforderungen an
équipement utilisant des appareils protecteurs Einrichtungen, welche nach dem aktiven opto-
optoélectroniques actifs (AOPD) elektronischen Prinzip arbeiten
(CEI 61496-2:2013) (IEC 61496-2:2013)

This European Standard was approved by CENELEC on 2013-07-12. 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 61496-2:2013 E
Foreword
The text of document 44/651/CDV, future edition 3 of IEC 61496-2, prepared by IEC/TC 44 "Safety of
machinery - Electrotechnical aspects" was submitted to the IEC-CENELEC parallel vote and approved
by CENELEC as EN 61496-2:2013.
The following dates are fixed:
– latest date by which the document has to be implemented at (dop) 2014-06-13
national level by publication of an identical national
standard or by endorsement
– latest date by which the national standards conflicting with (dow) 2016-07-12
the document have to be withdrawn

This document supersedes CLC/TS 61496-2:2006.
CLC/TS 61496-2:2006:
– requirements have been corrected and made easier to understand;
– test procedures have been revised to make them easier to perform and to improve repeatability;
– guidance is provided for the evaluation and verification of AOPDs using design techniques for
which the test procedures of this part are not sufficient.
This standard is to be used in conjunction with EN 61496-1:2013.
This part supplements or modifies the corresponding clauses in EN 61496-1.
Where a particular clause or subclause of Part 1 is not mentioned in this Part 2, that clause or
subclause applies as far as is reasonable. Where this part states "addition", "modification" or
"replacement", the relevant text of Part 1 is adapted accordingly.
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.
Endorsement notice
The text of the International Standard IEC 61496-2:2013 was approved by CENELEC as a European
Standard without any modification.

- 3 - EN 61496-2:2013
Annex ZA
(normative)
Normative references to international 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 60825-1 2007 Safety of laser products - EN 60825-1 2007
Part 1: Equipment classification and
requirements
IEC 61496-1 2012 Safety of machinery - Electro-sensitive EN 61496-1 2013
protective equipment
Part 1: General requirements and tests
IEC 62471 - Photobiological safety of lamps and lamp EN 62471 -
systems
ISO 13855 - Safety of machinery - Positioning of EN ISO 13855 -
protective equipment with respect to the
approach speeds of parts of the human
body
- - High-visibility warning clothing for EN 471 2003
professional use - Test methods and
requirements
IEC 61496-2 ®
Edition 3.0 2013-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Safety of machinery – Electro-sensitive protective equipment –

Part 2: Particular requirements for equipment using active opto-electronic

protective devices (AOPDs)
Sécurité des machines – Équipements de protection électro-sensibles –

Partie 2: Exigences particulières à un équipement utilisant des appareils

protecteurs optoélectroniques actifs (AOPD)

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XA
ICS 13.110; 29.260.99 ISBN 978-2-83220-587-7

– 2 – 61496-2 © IEC:2013
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Functional, design and environmental requirements . 9
4.1 Functional requirements . 9
4.2 Design requirements . 11
4.3 Environmental requirements . 14
5 Testing . 14
5.1 General . 14
5.2 Functional tests . 17
5.4 Environmental tests . 34
6 Marking for identification and safe use. 42
6.1 General . 42
7 Accompanying documents . 42
Annex A (normative) Optional functions of the ESPE . 44
Annex B (normative) Catalogue of single faults affecting the electrical equipment of
the ESPE, to be applied as specified in 5.3 . 48
Annex AA (informative) Type 2 AOPD periodic test configurations . 49
Bibliography . 51
Index . 52

Figure 1 – Limit area for the protection against the risk of beam bypass . 12
Figure 2 – Limit of vertical and horizontal misalignment . 13
Figure 3 – Test piece at 45° . 18
Figure 4 – Test piece at 90° . 19
Figure 5 – Verifying sensing function by moving the test piece (TP) through the
detection zone near the emitter, near the receiver/retro-reflector target and at the
midpoint . 19
Figure 6 – Limit values for the effective aperture angle (EAA) . 21
Figure 7 – Determination of the minimum detection capability . 22
Figure 8 – Measuring method for EAA (direction) . 23
Figure 9 – Prism test to measure EAA of each beam . 25
Figure 10 – EAA test using prism . 26
Figure 11 – Design calculations for a wedge prism . 27
Figure 12 – Example of optical subsystem: Emitter on left – Receiver on right . 27
Figure 13 – Example of SMD LED Model . 28
Figure 14 – Example of intensity distribution of emitting element . 28
Figure 15 – Example of emitter model with beams internally blocked by aperture stop . 28
Figure 16 – Example of receiving unit with off axis beam portion reflected internally on
mechanical elements . 29
Figure 17 – Example of test piece inside model of optical subsystem with passing
radiation on the receiver . 30

61496-2 © IEC:2013 – 3 –
Figure 18 – Example of emitting unit adjusted at the limit . 31
Figure 19 – Extraneous reflection test with mirror outside of limit area . 32
Figure 20 – AOPD misalignment test . 33
Figure 21 – Light interference test – Direct method . 35
Figure 22 – Light interference test – Test set-up with incandescent light source . 36
Figure 23 – Light interference test – Test set-up with fluorescent light source . 37
Figure 24 – Light interference test – Test set-up with flashing beacon light source . 38
Figure 25 – Light interference test – Test set-up with stroboscopic light source . 39
Figure AA.1 – Single beam sensing device . 49
Figure AA.2 – Series connection of single beam sensing devices . 49
Figure AA.3 – Assembly of multiple beams tested individually. 49
Figure AA.4 – Example of type 2 AOPD with internal test . 50

Table 1 – Correspondences of requirements/testing and AOPD designs . 15
Table 2 – Maximum permissible angle of misalignment (in degrees) for a type 2 ESPE
depending on the dimensions of the light c
...