CLC/TS 61496-3:2003

SLOVENSKI SIST-TS CLC/TS 61496-3:2005

STANDARD
december 2005
Varnost strojev – Električno občutljiva zaščitna oprema – 3. del: Posebne
zahteve za aktivne optoelektronske zaščitne elemente, ki se odzivajo na
difuzni odboj (IEC 61496-3:2001)
Safety of machinery – Electro-sensitive protective equipment – Part 3: Particular
requirements for Active Opto-electronic Protective Devices responsive to Diffuse
Reflection (AOPDDR) (IEC 61496-3:2001)
ICS 13.110; 31.260 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

TECHNICAL SPECIFICATION CLC/TS 61496-3
SPECIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION December 2003

ICS 13.110; 29.260 Supersedes EN 61496-3:2001

English version
Safety of machinery –
Electro-sensitive protective equipment
Part 3: Particular requirements for
Active Opto-electronic Protective Devices
responsive to Diffuse Reflection (AOPDDR)
(IEC 61496-3:2001)
Sécurité des machines – Sicherheit von Maschinen –
Equipements de protection Berührungslos wirkende
électro-sensibles Schutzeinrichtungen
Partie 3: Prescriptions particulières Teil 3: Besondere Anforderungen an
pour les équipements utilisant des aktive optoelektronische diffuse
dispositifs protecteurs opto-électroniques Reflektion nutzende Schutzeinrichtungen
actifs sensibles aux réflexions diffuses (AOPDDR)
(AOPDDR) (IEC 61496-3:2001)
(CEI 61496-3:2001)
This Technical Specification was approved by CENELEC on 2003-12-02.

CENELEC members 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 Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.

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

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. CLC/TS 61496-3:2003 E

Foreword
The text of the International Standard IEC 61496-3:2001, prepared by IEC TC 44, Safety of
machinery - Electrotechnical aspects, was approved by CENELEC as CLC/TS 61496-3 on 2003-12-02
without any modification.
This Technical Specification supersedes EN 61496-3:2001.
The following date was fixed:
– latest date by which the existence of the CLC/TS
has to be announced at national level (doa) 2004-02-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61496-3:2001 was approved by CENELEC as a Technical
Specification without any modification.
__________
- 3 - CLC/TS 61496-3:2003
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
This Technical Specification incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this Technical Specification only when incorporated in it by amendment
or revision. For undated references the latest edition of the publication referred to applies (including
amendments).
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
1)
IEC 60068-2-14 1984 Environmental testing EN 60068-2-14 1999
Part 2: Tests - Test N: Change of
temperature
IEC 60068-2-75 1997 Part 2-75: Tests - Test Eh: Hammer EN 60068-2-75 1997
tests
IEC 60825-1 1993 Safety of laser products EN 60825-1 1994
Part 1: Equipment classification, + corr. February 1995
requirements and user's guide
IEC 61496-1 1997 Safety of machinery - Electro-sensitive EN 61496-1 1997
protective equipment
Part 1: General requirements and tests

– – High-visibility warning clothing EN 471 1994

__________
1)
EN 60068-2-14 includes A1:1986 to IEC 60068-2-14.

NORME CEI
INTERNATIONALE IEC
61496-3
INTERNATIONAL
Première édition
STANDARD
First edition
2001-02
Sécurité des machines –
Equipements de protection électro-sensibles –
Partie 3:
Prescriptions particulières pour les équipements
utilisant des dispositifs protecteurs opto-
électroniques actifs sensibles aux réflexions
diffuses (AOPDDR)
Safety of machinery –
Electro-sensitive protective equipment –
Part 3:
Particular requirements for Active Opto-
electronic Protective Devices responsive
to Diffuse Reflection (AOPDDR)
 IEC 2001 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun procédé, any form or by any means, electronic or mechanical,
électronique ou mécanique, y compris la photocopie et les including photocopying and microfilm, without permission in
microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http://www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
XA
PRICE CODE
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue

61496-3 © IEC:2001 – 3 –
CONTENTS
Page
FOREWORD . 7
INTRODUCTION . 11
Clause
1 Scope . 13
2 Normative references . 15
3 Definitions. 15
4 Requirements. 15
4.1 Functional requirements. 15
4.2 Design requirements . 17
4.3 Environmental requirements. 25
5 Testing. 31
5.1 General. 31
5.2 Functional tests. 31
5.3 Performance testing under fault conditions . 41
5.4 Environmental tests. 43
6 Marking for identification and for safe use . 65
7 Accompanying documents . 65
Annex A (normative) Optional functions of the ESPE. 85
Annex B (normative) Catalogue of single faults affecting the electrical equipment of
the ESPE, to be applied as specified in 5.3 . 91
Annex C (informative)  Bibliography . 93
Annex AA (informative) Examples of the use of an AOPDDR in different applications . 95
Annex BB (informative) Relationship between ranging accuracy and probability
of detection . 103
Figure 1a – Example of a maximum detection zone of an AOPDDR. 69
Figure 1b – Example of a detection zone of an AOPDDR . 69
Figure 2 – Minimum diffuse reflectivity of materials . 71
Figure 3a – Influence on detection capability by background . 71
Figure 3b – Influence on detection capability by incandescent light – Example 1. 73
Figure 3c – Influence on detection capability by incandescent light – Example 2. 73
Figure 3d – Influence on detection capability by light reflected by the background . 75
Figure 3e – Influence on detection capability by stroboscopic light – Example 1. 75
Figure 3f – Influence on detection capability by stroboscopic light – Example 2 . 77
Figure 3g – Light interference test. 77
Figure 3h – Interference between two AOPDDRs of identical design. 79
Figure 4a – Configuration for the endurance test – Example 1. 81
Figure 4b – Configuration for the endurance test – Example 2. 81
Figure 5 – Test of homogeneous pollution. 83

61496-3 © IEC:2001 – 5 –
Page
Figure AA.1 – Example of the use of an AOPDDR on machinery . 97
Figure AA.2 – Example of the use of an AOPDDR on an AGV . 99
Figure AA.3 – Example of the use of an AOPDDR as a whole-body trip device . 101
Figure BB.1 – Relationship between ranging accuracy and detection zone. 103
Figure BB.2 – Relationship between ranging accuracy, detection zone and the
probabilistic part of the tolerance zone. 105
Figure BB.3 – Relationship between ranging accuracy, detection zone and tolerance
zone – Example 1. 107
Figure BB.4 – Relationship between ranging accuracy, detection zone and tolerance
zone – Example 2. 107
Figure BB.5 – POD of a single measurement (logarithmic) for a MooM-evaluation
with 1 ≤ M ≤ 50 . 109
Figure BB.6 – POD of a single measurement for a MooM-evaluation with 1 ≤ M ≤ 50
in relation to σ in the case of a normal distribution. 111
Table 1 – Verification of detection capability requirements (see also 4.2.12.1). 33
Table 2 – Overview of light interference tests. 51

61496-3 © IEC:2001 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY OF MACHINERY –
ELECTRO-SENSITIVE PROTECTIVE EQUIPMENT –
Part 3: Particular requirements for Active Opto-electronic
Protective Devices responsive to
Diffuse Reflection (AOPDDR)
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IE
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