Din En Iso 13849-1 (Replaces En 954-1) - Siemens SINAMICS V90 Operating Instructions Manual
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The application areas of EN ISO 13849-1, EN 62061, and EN 61508 are very similar. To
help users make an appropriate decision, the IEC and ISO associations have specified the
application areas of both standards in a joint table in the introduction to the standards. EN
ISO 13849-1 or EN 62061 should be applied depending on the technology (mechanics,
hydraulics, pneumatics, electrics, electronics and programmable electronics), risk
classification and architecture.
Type
Systems for executing 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. programmable
electronics)
D
A standards combined with B standards
E
C standards combined with B standards
F
C standards combined with A standards or C
standards combined with A standards and B
standards
"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 archi-
tecture in compliance with EN 62061.
Comment 3:
For non-electrical systems: Use components that comply with EN ISO 13849-1 as sub-systems.
8.1.2.4
DIN EN ISO 13849-1 (replaces EN 954-1)
A qualitative analysis according to DIN EN 13849-1 is not sufficient for modern control
systems due to their technology. Among other things, DIN EN ISO 13849-1 does not take
into account time behavior (e.g. test interval and/or cyclic test, lifetime). This results in the
probabilistic approach in DIN EN ISO 13849-1 (probability of failure per unit time).
DIN EN ISO 13849-1 is based on the known categories of EN 954-1. It now also takes into
account complete safety functions and all the devices required to execute these. With DIN
EN ISO 13849-1, safety functions are investigated from a quantitative perspective going
beyond the qualitative basis of EN 954-1. Performance levels (PL), which are based on the
categories, are used. The following safety-related characteristic quantities are required for
devices/equipment:
● Category (structural requirement)
● PL: Performance level
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 09/2015, A5E36037884
EN ISO 13849-1
X
Restricted to the designated
architectures (see comment
1) and max. up to PL = e
Restricted to the designated
architectures (see comment
1) and max. up to PL = d
Restricted to the designated
architectures (see comment
1) and max. up to PL = e
Restricted to the designated
architectures (see comment
1) and max. up to PL = d
X
See comment 2
Safety Integrated function
8.1 Standards and regulations
EN 62061
Not covered
All architectures and max. up
to SIL 3
All architectures and max. up
to SIL 3
X
See comment 3
All architectures and max. up
to SIL 3
X
See comment 3
231
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