Siemens Sinumerik 840D sl Function Manual page 18

Regulations and standards
1.2 Safety of machinery in Europe
European standards relating to the safety of machines are structured in a hierarchi-
cal manner as follows:
S A standards (basic standards)
S B standards (group standards)
S C standards (product standards)
Type A standards/basic standards
A standards include basic terminology and definitions relating to all types of
machine.
A standards are aimed primarily at the bodies responsible for setting the B and C
standards. The measures specified here for minimizing risk, however, may also be
useful for manufacturers if no applicable C standards have been defined.
Type B standards/group standards
B standards cover all safety--related standards for various different machine types.
B standards are also aimed primarily at the bodies responsible for setting C stan-
dards. They can also be useful for manufacturers during the machine design and
construction phases, however, if no applicable C standards have been defined.
A further sub--division has been made for B standards, and more precisely in:
-- Type B1 standards for higher--level safety aspects, e.g. basic ergonomic
principles, safety clearances from hazards, minimum clearances to avoid
crushing parts of the body.
-- Type B2 standards for protective safety devices are defined for various
machine types – e.g. Emergency Stop devices, two--hand operating circuits,
interlocking elements, contactless protective devices, safety--related parts of
controls.
Type C standards/product standards
C standards are standards for specific products – for instance, machine tools,
woodworking machines, elevators, packaging machines, printing machines etc.
Product standards list requirements for specific machines. The requirements can,
under certain circumstances, deviate from the basic and group standards. Type
C/product standards have the highest priority for machine manufacturers The
machine manufacturer can then assume that it fulfills the basic requirements of
Attachment I of the machinery directive (automatic presumption of compliance).
If no product standard has been defined for a particular machine, type B standards
can be applied when the machine is being constructed.
A complete list of the standards and the mandated draft standards are available on
the Internet at the following address:
http://www.newapproach.org/
Recommendation: Due to the rapid pace of technical development and the asso-
ciated changes in machine concepts, the standards (and C standards in particular)
should be checked to ensure that they are up to date. Where appropriate, note that
the application of a particular standard may not be mandatory provided that all the
safety requirements of the applicable EC directive are fulfilled.
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
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