EN 61496-1:2004/A1:2008

SLOVENSKI STANDARD
01-januar-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 61496-1:2004/A1:2008
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.

EUROPEAN STANDARD
EN 61496-1/A1
NORME EUROPÉENNE
August 2008
EUROPÄISCHE NORM
ICS 13.110; 29.260.99
English version
Safety of machinery -
Electro-sensitive protective equipment -
Part 1: General requirements and tests
(IEC 61496-1:2004/A1:2007 + corrigendum 2008)

Sécurité des machines -  Sicherheit von Maschinen -
Equipements de protection Berührungslos wirkende
électro-sensibles - Schutzeinrichtungen -
Partie 1: Prescriptions générales et essais Teil 1: Allgemeine Anforderungen
(CEI 61496-1:2004/A1:2007 und Prüfungen
+ corrigendum 2008) (IEC 61496-1:2004/A1:2007
+ Corrigendum 2008)
This amendment A1 modifies the European Standard EN 61496-1:2004; it was approved by CENELEC on
2008-06-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment 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 Central Secretariat or to any CENELEC member.

This amendment 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
Central Secretariat has the same status as the official versions.

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. EN 61496-1:2004/A1:2008 E

Foreword
The text of document 44/560/FDIS, future amendment 1 to IEC 61496-1:2004, prepared by IEC TC 44,
Safety of machinery - Electrotechnical aspects, was submitted to the IEC-CENELEC parallel vote and
was approved by CENELEC as amendment A1 to EN 61496-1:2004 on 2008-06-01.
The following dates were fixed:
– latest date by which the amendment has to be
implemented at national level by publication of
an identical national standard or by endorsement (dop) 2009-03-01
– latest date by which the national standards conflicting
with the amendment have to be withdrawn (dow) 2011-06-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of amendment 1:2007 to the International Standard IEC 61496-1:2004 with its corrigendum
July 2008 was approved by CENELEC as an amendment to the European Standard without any
modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC/TS 62046 NOTE  Harmonized as CLC/TS 62046:2005 (not modified).
__________
- 3 - EN 61496-1:2004/A1:2008
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

Addition to Annex ZA of EN 61496-1:2004:

Publication Year Title EN/HD Year

1) 2)
IEC 62061 - Safety of machinery - Functional safety of EN 62061 2005
safety-related electrical, electronic and
programmable electronic control systems

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

IEC 61496-1
Edition 2.0 2007-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
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
H
CODE PRIX
ICS 13.110; 29.260.99 ISBN 2-8318-9316-X

– 2 – 61496-1 Amend. 1 © IEC:2007
FOREWORD
This amendment has been prepared by IEC technical committee 44: Safety of machinery –
Electrotechnical aspects.
The text of this amendment is based on the following documents:
FDIS Report on voting
44/560/FDIS 44/568/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the maintenance result 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.
The contents of the corrigendum of July 2008 have been included in this copy.

___________
Page 11
1 Scope
Add, after the third paragraph, the following new paragraph:
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).
2 Normative references
Add, to the existing list, the title of the following standard:
IEC 62061, Safety of machinery – Functional safety of safety-related electrical, electronic and
programmable electronic control systems
Page 15
3 Terms and definitions
Replace definition 3.5 by the following new definition:

61496-1 Amend. 1 © IEC:2007 – 3 –
3.5
electro-sensitive protective equipment
ESPE
assembly of devices and/or components working together for protective tripping or presence-
sensing purposes and comprising as a minimum
– a sensing device;
– controlling/monitoring devices;
– output signal switching devices and/or a safety-related data interface
NOTE 1 The safety-related control system associated with the ESPE, or the ESPE itself, may further include a
secondary switching device, muting functions, stopping performance monitor, etc. (see Annex A).
NOTE 2 A safety-related communication interface can be integrated in the same enclosure as the ESPE.
3.16
muting
temporary automatic suspension of a safety function(s) by safety-related parts of the control
system
NOTE For ESPE-muting, see Clause A.7.
Replace, on page 19, definitions 3.17 and 3.18 by the following new definitions:
3.17
OFF-state
state of the output(s) of the ESPE in which the machine under control is caused to stop
running and is prevented from starting (for example, the output circuit is interrupted and
disables the flow of current)
3.18
ON-state
state of the output(s) of the ESPE in which the machine under control is allowed to run (for
example, the output circuit is complete and enables the flow of current)
3.21
response time
Add, after the text of definition 3.21, the following new notes:
NOTE 1 When an ESPE includes a safety-related data interface, the response time is defined at the output of the
safety-related data interface.
NOTE 2 When a safety-related communication interface is included in the ESPE enclosure, then the response
time is defined at the output of the safety-related communication interface. In this case, the response time is also
dependent on the protocol and architecture of the communication network.
NOTE 3 If an ESPE has both a safety-related data interface and OSSDs, the ESPE can have a different response
time for the safety-related data interface and for the OSSDs.
Add, on page 21,after definition 3.28, the following new definitions:
3.29
safety-related data interface
direct connection (peer-to-peer) interface between the output of the ESPE and the safety-
related communication interface that is used to represent the status of the OSSD(s)
NOTE 1 A data interface will not have addressing capability.
NOTE 2 The safety-related data interface can be bi-directional.

– 4 – 61496-1 Amend. 1 © IEC:2007
3.30
safety-related communication interface
safety-related connection to a standardized communication network intended for safety-
related control functions
Page 23
4 Functional, design and environmental requirements
4.1.3 Types of ESPE
Add, at the end of this subclause, the following last sentence:
When a single safety-related data interface is used to perform the functions of the OSSD(s),
then the data interface and associated safety-related communication interface shall meet the
requirements of 4.2.4.4. In this case, a single safety-related data interface
...