Standards To Implement Safety-Related Controls - Siemens SINUMERIK 840D sl Function Manual

05.08
If, for a particular machine, no Product Standard is available, then Type B Stan-
dards can be used as help when designing and constructing a machine.
All of the listed Standards as well as the mandated Draft Standards are provided in
the Internet under:
http://www.newapproach.org/
Recommendation: Technical development is progressing at a tremendous pace
and with it changes and modifications to machine concepts. This is the reason that
especially when using C Standards, it should be carefully checked as to whether
they are still up–to–date. It is presumed that if all of the applicable harmonized
standards are fulfilled, then the protective goals of the corresponding Directive are
fully complied with.
1.2.3 Standards to implement safety–related controls
If the functional safety of the machine depends on control functions, then the con-
trol must be implemented so that the probability of failure of the safety–related
functions is sufficiently low. Standards EN ISO 13849–1 (previously EN 954–1) and
EN 62061 define guiding principles to implement safety–related machine controls
whose use guarantees that all of the protective goals of the EC Machinery Direc-
tive are fulfilled. The corresponding safety goals of the Machinery Directive can be
fulfilled by applying these standards.
Any architectures,
all SIL 1
Safety of machinery
Functional safety, safety–
related electrical, electronic
and programmable electronic
Sector Standard EN 62061 for the
area of machines below EN 61508
© Siemens AG 2008 All Rights Reserved
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
– 3 (from PL b)
EN 62061
control systems
Universal use for electrical, electronic and programmable electronic
systems, that execute safety functions or guarantee functional safety
EN 61508
Functional safety, safety–related electrical/electronic/
programmable electronic control systems
Regulations and Standards
1.2 Safety of machinery in Europe
Defined architectures, restricted
maximum PL for electronics
EN ISO 13849
Safety of machinery
Safety–related parts of
controllers
For deviations from the defined
architectures, reference to EN 61508
(Part 0 to 7)
1-21