Din En Iso 13849-1 (Replaces En 954-1) - Siemens Sinamics G120 Function Manual

Standard IEC 61800‑5‑2:2007 is applicable for variable-speed electric drives with integrated
safety functions. IEC 61800‑5‑2 defines requirements and gives recommendations for
designing and developing, integrating and validating safety-related applications regarding their
functional safety. IEC 61800‑5‑2 is applicable for adjustable speed electric power drive
systems, which are handled in other parts of IEC 61800 standards.
Systems for executing safety-related control
functions
A Non-electrical (e.g. hydraulic, pneumatic)
B Electromechanical (e.g. relay and/or basic elec‐
tronics)
C Complex electronics (e.g. programmable elec‐
tronics)
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 architecture
in compliance with EN 62061.
Comment 3:
For non-electrical systems: Use components that comply with EN ISO 13849-1 as sub-systems.
A.4.2.4

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
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD
EN ISO 13849-1
X
Restricted to the designated ar‐
chitectures (see comment 1) and
max. up to PL = e
Restricted to the designated ar‐
chitectures (see comment 1) and
max. up to PL = d
Restricted to the designated ar‐
chitectures (see comment 1) and
max. up to PL = e
Restricted to the designated ar‐
chitectures (see comment 1) and
max. up to PL = d
X
See comment 2
A.4 Standards and specifications
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
Appendix
425