CLC/TS 61496-3:2008

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Safety of machinery - Electro-sensitive protective equipment -- Part 3: Particular
requirements for Active Opto-electronic Protective Devices responsive to Diffuse
Reflection (AOPDDR)
Sicherheit von Maschinen - Berührungslos wirkende Schutzeinrichtungen -- Teil 3:
Besondere Anforderungen an aktive optoelektronische diffuse Reflektion nutzende
Schutzeinrichtungen (AOPDDR)
Sécurité des machines - Equipements de protection électro-sensibles -- Partie 3:
Exigences particulières pour les équipements utilisant des dispositifs protecteurs
optoélectroniques actifs sensibles aux réflexions diffuses (AOPDDR)
Ta slovenski standard je istoveten z: CLC/TS 61496-3:2008
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.

TECHNICAL SPECIFICATION
CLC/TS 61496-3
SPÉCIFICATION TECHNIQUE
May 2008
TECHNISCHE SPEZIFIKATION
ICS 13.110; 31.260 Supersedes CLC/TS 61496-3:2003

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 61496-3:2008)
Sécurité des machines -  Sicherheit von Maschinen -
Equipements de protection Berührungslos wirkende
électro-sensibles - Schutzeinrichtungen -
Partie 3: Exigences particulières pour les Teil 3: Besondere Anforderungen an
équipements utilisant des dispositifs aktive optoelektronische diffuse Reflektion
protecteurs optoélectroniques actifs nutzende Schutzeinrichtungen (AOPDDR)
sensibles aux réflexions diffuses (IEC 61496-3:2008)
(AOPDDR)
(CEI 61496-3:2008)
This Technical Specification was approved by CENELEC on 2008-03-01.

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, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the 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

© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. CLC/TS 61496-3:2008 E

Foreword
The text of document 44/572/FDIS, future edition 2 of IEC 61496-3, prepared by IEC TC 44, Safety of
machinery - Electrotechnical aspects, in collaboration with the Technical Committee CENELEC TC 44X,
Safety of machinery: electrotechnical aspects, was submitted to the IEC-CENELEC parallel vote and was
approved by CENELEC as CLC/TS 61496-3 on 2008-03-01.
This Technical Specification supersedes CLC/TS 61496-3:2003.
The most important changes and improvements compared to CLC/TS 61496-3:2003 are:
– extension of the range of detection capability covered by this part of the standard from 50 mm to
100 mm to the range of 30 mm to 200 mm;
– clarification of requirements for the selection of multiple detection zones (Clause A.10);
– more detailed information about the use of an AOPDDR as a whole body trip device by extension of
Clause A.12 and a new Clause A.13;
– improved description of the relationship between ranging accuracy and probability of detection
(Annex BB).
This Technical Specification is to be used in conjunction with EN 61496-1.
The following date was fixed:
– latest date by which the existence of the CLC/TS
has to be announced at national level (doa) 2008-06-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61496-3:2008 was approved by CENELEC as a Technical
Specification without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
ISO 14121-1 NOTE  Harmonized as EN ISO 14121-1:2007 (not modified).
__________
-
- 3 - CLC/TS 61496-3:2008
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

Addition to Annex ZA of EN 61496-1:
Publication Year Title EN/HD Year

- - High-visibility warning clothing for EN 471 2003
professional use - Test methods and
requirements
IEC 60068-2-14 1984 Environmental testing -

+ A1 1986 Part 2: Tests - Test N: Change of EN 60068-2-14 1999
temperature
IEC 60068-2-75 1997 Environmental testing - EN 60068-2-75 1997
Part 2-75: Tests - Test Eh: Hammer tests

1) 2)
IEC 60825-1 - Safety of laser products - EN 60825-1 2007
Part 1: Equipment classification and
requirements
IEC 61496-1 2004 Safety of machinery - Electro-sensitive EN 61496-1 2004
(mod) protective equipment -
Part 1: General requirements and tests

1) 2)
IEC/TS 62046 - Safety of machinery - Application of CLC/TS 62046 2008
protective equipment to detect the presence
of persons
ISO 13855 2002 Safety of machinery - Positioning of - -
protective equipment with respect to the
approach speeds of parts of the human body

1)
Undated reference.
2)
Valid edition at date of issue.

IEC 61496-3
Edition 2.0 2008-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Safety of machinery – Electro-sensitive protective equipment –
Part 3: Particular requirements for Active Opto-electronic Protective Devices
responsive to Diffuse Reflection (AOPDDR)

Sécurité des machines – Equipements de protection électro-sensibles –
Partie 3: Exigences particulières pour les équipements utilisant des dispositifs
protecteurs optoélectroniques actifs sensibles aux réflexions diffuses
(AOPDDR)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XB
CODE PRIX
ICS 13.110; 31.260 ISBN 2-8318-9588-X

– 2 – 61496-3 © IEC:2008
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 Scope.7
2 Normative references.8
3 Terms and definitions .8
4 Requirements .9
4.1 Functional requirements .9
4.2 Design requirements.9
4.3 Environmental requirements .16
5 Testing .18
5.1 General .18
5.2 Functional tests .25
5.3 Performance testing under fault conditions.32
5.4 Environmental tests .32
6 Marking for identification and for safe use .46
6.1 General .46
7 Accompanying documents .46

Annex A (normative) Optional functions of the ESPE .48
Annex B (normative) Catalogue of single faults affecting the electrical equipment of the
ESPE, to be applied as specified in 5.3 .56
Annex AA (informative) Examples of the use of an AOPDDR in different applications.57
Annex BB (informative) Relationship between ranging accuracy and probability of
detection.61

Bibliography .69

Figure 1 – Detection zone of an AOPDDR – Example 1 .12
Figure 2 – Detection zone of an AOPDDR – Example 2 .13
Figure 3 – Minimum diffuse reflectivity of materials.15
Figure 4 – Influence on detection capability by incandescent light – Example 1 .19
Figure 5 – Influence on detection capability by incandescent light – Example 2 .20
Figure 6 – Influence on detection capability by light reflected by the background.21
Figure 7 – Influence on detection capability by stroboscopic light – Example 1 .22
Figure 8 – Influence on detection capability by stroboscopic light – Example 2 .23
Figure 9 – Light interference test .24
Figure 10 – Interference between two AOPDDRs of identical design .25
Figure 11 – Configuration for the endurance test – Example 1 .30
Figure 12 – Configuration for the endurance test – Example 2 .31
Figure 13a – Test of homogeneous pollution – Examples of different designs of
AOPDDR housings and optical windows without foil for simulation of homogeneous
pollution .42

61496-3 © IEC:2008 – 3 –
Figure 13b – Test of homogeneous pollution – Examples of different designs of
AOPDDR housings and optical windows – Examples of correct positions of the foil.43
Figure 13c – Test of homogeneous pollution – Examples of different designs of
AOPDDR housings and optical windows – Examples of incorrect positions of the foil .43
Figure 14 – Influence on detection capability by background .44
Figure A.1 – Use of an AOPDDR as a whole-body trip device – Example 1 .51
Figure A.2 – Use of an AOPDDR as a whole-body trip device – Example 2 .52
Figure A.3 – Use of an AOPDDR as parts of a body trip device – Example 1.54
Figure A.4 – Use of an AOPDDR as parts of a body trip device – Example 2.54
Figure AA.1 – Example of the use of an AOPDDR on machinery.58
Figure AA.2 – Example of the use of an AOPDDR on an AGV.59
Figure BB.1 – Relationship between ranging accuracy and detection zone .61
Figure BB.2 – Relationship between ranging accuracy, detection zone and the
probabilistic part of the tolerance zone – Example 1 .62
Figure BB.3 – Relationship between ranging accuracy, detection zone and the
probabilistic part of the tolerance zone – Example 2 .63
Figure BB.4 – Relationship between ranging accuracy, detection zone and tolerance
zone – Example 1 .64
Figure BB.5 – Relationship between ranging accuracy, detection zone and tolerance
zone – Example 2 .65
Figure BB.6 – Reference boundary monitoring – Distribution of measurement values –
Example 1.66
Figure BB.7 – Reference boundary monitoring – Distribution of measurement values –
Example 2.66
Figure BB.8 – POD of a single measurement (logarithmic) for a MooM-evaluation with 1
≤ M ≤ 50 .67
Figure BB.9 – POD of a single measurement for a MooM-evaluation with 1 ≤ M ≤ 50 in
relation to σ in the case of a normal distribution.
...