IEC 62061:2005/AMD2:2015

IEC 62061 ®
Edition 1.0 2015-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AM ENDMENT 2
AM ENDEMENT 2
Safety of machinery – Functional safety of safety-related electrical, electronic
and programmable electronic control systems

Sécurité des machines – Sécurité fonctionnelle des systèmes de commande
électriques, électroniques et électroniques programmables relatifs à la sécurité
IEC 62061:2005-01/AMD2:2015-06(en-fr)

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IEC 62061 ®
Edition 1.0 2015-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AM ENDMENT 2
AM ENDEMENT 2
Safety of machinery – Functional safety of safety-related electrical, electronic

and programmable electronic control systems

Sécurité des machines – Sécurité fonctionnelle des systèmes de commande

électriques, électroniques et électroniques programmables relatifs à la sécurité

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.110; 25.040.99; 29.020 ISBN 978-2-8322-2728-2

– 2 – IEC 62061:2005/AMD2:2015
© IEC 2015
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:
CDV Report on voting
44/718/CDV 44/725/RVC
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 stability date indicated on the IEC website 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• withdrawn,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.
_____________
INTRODUCTION
In the fourth paragraph, replace ISO 12100-1 with ISO 12100:2010.
In the seventh paragraph, replace ISO 12100-1 with ISO 12100.
In the seventh paragraph, replace ISO 14121 (EN 1050) with ISO 12100.

Figure 1 – Relationship of IEC 62061 to other relevant standards
Replace, in the first box of this figure, ISO 12100, Safety of machinery – Basic concept,
general principles for design
ISO 14121, Safety of machinery – Principles for risk assessement
with ISO 12100, Safety of machinery – General principles for design – Risk assessment and
risk reduction
© IEC 2015
2 Normative references
Replace the reference to ISO 13849-2:2003 with the following new reference:
ISO 13849-2:2012, Safety of machinery – Safety-related parts of control systems – Part 2:
Validation
Delete from the existing list, the following standard:
ISO 14121, Safety of machinery – Principles of risk assessment

3.2.1
Replace, in the new source as modified by Amendment 1, ISO 12100-1:2003 with
ISO 12100:2010, 3.1.
3.2.5
Replace, in the new source as modified by Amendment 1, IEC 61508-4 with
IEC 61508-4:2010, 3.2.7.
3.2.7
Replace, in the new source as modified by Amendment 1, IEC 61508-4, 3.4.3 with
IEC 61508-4:2010, 3.4.3.
3.2.9
Replace, in the new source as modified by Amendment 1, IEC 61508-4, 3.1.12 with
IEC 61508-4:2010, 3.1.12.
3.2.10
Replace, in the new source as modified by Amendment 1, ISO 12100, 3.6 with
ISO 12100:2010, 3.6.
3.2.11
Replace, in the new source as modified by Amendment 1, ISO 12100, 3.10 with
ISO 12100:2010, 3.10.
3.2.12
Replace, in the new source as modified by Amendment 1, ISO 12100, 3.19 with
ISO 12100:2010, 3.19
3.2.13
Replace, in the new source as modified by Amendment 1, ISO 12100, 3.12 with
ISO 12100:2010, 3.12.
3.2.15
Replace, in the new source as modified by Amendment 1, ISO 12100, 3.30 with
ISO 12100:2010, 3.30.
– 4 – IEC 62061:2005/AMD2:2015
© IEC 2015
3.2.19
Replace, in the new source as modified by Amendment 1, IEC 61508-4, 3.5.4 with
IEC 61508-4:2010, 3.5.4.
3.2.20
Replace, in the new source as modified by Amendment 1, IEC 61508-4, 3.5.7 with
IEC 61508-4:2010, 3.5.7
3.2.21
Replace, in the new source as modified by Amendment 1, IEC 61508-4, 3.5.5 with
IEC 61508-4:2010, 3.5.5.
3.2.22
Replace, in the new source as modified by Amendment 1, IEC 61508-4, 3.5.6 with
IEC 61508-4:2010, 3.5.6.
3.2.23
Replace, in the new source as modified by Amendment 1, IEC 61508-4, 3.5.8 with
IEC 61508-4:2010, 3.5.8.
3.2.27
Replace, in the new source as modified by Amendment 1, IEC 61508-4, 3.5.16 with
IEC 61508-4:2010, 3.5.16.
3.2.28
Add the following new Note 2:
NOTE 2 Within this standard λ is expressed as the constant failure rate with respect to 1 hour.
and renumber the existing note as "NOTE 1".
3.2.29
Replace, in the new source as modified by Amendment 1, IEC 61508-4, 3.5.17 with
IEC 61508-4:2010. 3.5.17.
3.2.30
Replace, in the existing source, IEC 61508-4, 3.6.1 with IEC 61508-4:2010, 3.6.1.
3.2.31
Replace, in the existing source, IEC 61508-4, 3.6.3 with IEC 61508-4:2010, 3.6.3.
3.2.35
Replace, in the new source as modified by Amendment 1, IEC 61508-4, 3.3.4 with
IEC 61508-4:2010, 3.3.4.
3.2.37
Replace, in the new source as modified by Amendment 1, IEC 61508-4, 3.8.5 with
IEC 61508-4:2010, 3.8.5.
© IEC 2015
3.2.38
Replace, in the new source as modified by Amendment 1, IEC 61508-4, 3.8.6 with
IEC 61508-4:2010, 3.8.6.
3.2.39
Replace the existing source IEC 61508-4, 3.6.4 modified and ISO 12100-1:2003, 3.32with the
following new source:
IEC 61508-4:2010, 3.6.4 modified and ISO 12100:2010, 3.34.
3.2.43
Replace, in the existing source, IEC 61508-4, 3.6.10 with IEC 61508-4:2010, 3.6.10.
In the existing note, replace ISO 12100-1 with ISO 12100.
3.2.44
Replace, in the existing source, IEC 61508-4, 3.6.5 with IEC 61508-4:2010, 3.6.5.
3.2.45
Replace, in the existing source, IEC 61508-4, 3.6.6 with IEC 61508-4:2010, 3.6.6.
3.2.48
Replace, in the existing source, IEC 61511-1, 3.2.81.1.3 with IEC 61511-1:2003, 3.2.81.1.3.
3.2.49
Replace, in the existing source, IEC 61511-1, 3.2.81.1.2 with IEC 61511-1:2003, 3.2.81.1.2.
3.2.51
Replace, in the existing source, IEC 61508-4, 3.8.1 with IEC 61508-4:2010, 3.8.1.
Replace, in the existing source, IEC 61511-1, 3.2.92 with IEC 61511-1:2003, 3.2.92.
3.2.52
Replace, in the existing source, IEC 61508-4, 3.8.2 with IEC 61508-4:2010, 3.8.2.

5.2.1.1
Replace ISO 12100-1, ISO 12100-2, and ISO 14121 with ISO 12100.
5.2.1.4
In the note, replace IEC 61508-7 with IEC 61508-7:2010.

– 6 – IEC 62061:2005/AMD2:2015
© IEC 2015
6.4.1.1
In item d) of this subclause, replace ISO 13849-2 with ISO 13849-2:2012.
In item e) of this subclause, replace ISO 13849-2 with ISO 13849-2:2012.
6.7.2.2
Replace, in the new Note 1 as modified by Amendment 1, IEC 60947-4-1 with
IEC 60947-4-1:2009+A1:2012.
6.7.4.4.2
Replace, in the new note as modified by Amendment 1, IEC 60947-4-1 with
IEC 60947-4-1:2009+
...