En Iso 13849-1 (Previously En 954-1) - Siemens SINUMERIK 840D sl Function Manual

Regulations and Standards
1.2 Safety of machinery in Europe
The areas of application of EN ISO 13849–1, EN 62061 and EN 61508 are very
similar. In order to help users make a decision, the application areas of both Stan-
dards are listed in a common table in the introduction to the Standards. Either EN
ISO 13849–1 or EN 62061 is applied depending on the particular technology (me-
chanical, hydraulic, pneumatic, electrical, electronic, programmable electronic), risk
classification and architecture.
Systems to execute
safety–related control
functions
A Non–electrical (e.g. hydraulic,
pneumatic)
B Electromechanical (e.g. relay
and/or basic electronics)
C Complex electronics (e.g. pro-
grammable electronics)
D A combined with B
E C combined with B
F C combined with A or
C combined with A and B
"X" indicates that the point is covered by this Standard.
Comment 1:
Designated architectures are described in Annex B of EN ISO 13849–1 and provide a simplified basis for
the quantification
Comment 2:
For complex electronics: Using designated architectures in compliance with EN ISO 13849–1 up to PL =
d or every architecture in compliance with EN 62061
Comment 3:
For non–electrical systems: Use parts/components, that correspond to EN ISO 13849–1 as subsystems
1.2.4 EN ISO 13849–1 (previously EN 954–1)
The qualitative approach acc. to EN 954–1 is not sufficient for state–of–the–art
controls. EN 954–1 does not take into account, among other things, time behavior
(e.g. test interval and/or cyclic test, lifetime). This results in the probabilistic basis
in EN ISO 13849–1 (probability of failure per unit time).
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
EN ISO 13849–1
X
Restricted to the designated ar-
chitectures (see comment 1)
and maximum, up to PL = e
Restricted to the designated ar-
chitectures (see comment 1)
and maximum, up to PL = d
Restricted to the designated ar-
chitectures (see comment 1)
and maximum, up to PL = e
Restricted to the designated ar-
chitectures (see comment 1)
and maximum, up to PL = d
X
See comment 2
EN 62061
No covered
All architectures and maximum,
up to SIL 3
All architectures and maximum,
up to SIL 3
X
See comment 3
All architectures and maximum,
up to SIL 3
X
See comment 3
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05.08