Machinery Directive; Harmonized European Standards - Siemens SINUMERIK 808D Function Manual

The EU Directives are equal. This means that if several Directives apply for a specific piece of equipment or device, the
requirements of all of the relevant Directives apply (e.g. for a machine with electrical equipment, the Machinery Directive and
the Low-Voltage Directive apply).
22.1.2.1

Machinery Directive

The basic safety and health requirements specified in Annex I of the Directive must be fulfilled for the safety of machines.
The protective goals must be implemented responsibly to ensure compliance with the Directive.
Manufacturers of a machine must verify that their machine complies with the basic requirements. This verification is
facilitated by means of harmonized standards.
22.1.2.2

Harmonized European Standards

The two Standards Organizations CEN (Comité Européen de Normalisation) and CENELEC (Comité Européen de
Normalisation Électrotechnique), mandated by the EU Commission, drew-up harmonized European standards in order to
precisely specify the requirements of the EC directives for a specific product. These standards (EN standards) are published
in the official journal of the commission of the European Parliament and Council and must be included without revision in
domestic standards. They are designed to fulfill basic health and safety requirements as well as the protective goals
specified in Annex I of the Machinery Directive.
When the harmonized standards are observed, it is "automatically assumed" that the Directive is fulfilled. As such,
manufacturers can assume that they have observed the safety aspects of the Directive under the assumption that these are
also covered in this standard. However, not every European Standard is harmonized in this sense. Key here is the listing in
the official journal of the commission of the European Parliament and Council.
The European Safety of Machines standard is hierarchically structured. It is divided into:
● A standards (basic standards)
● B standards (group standards)
● C standards (product standards)
Type A standards/basic standards
A standards include basic terminology and definitions relating to all types of machine. This includes EN ISO 12100-1
(previously EN 292-1) "Safety of Machines, Basic Terminology, General Design Principles".
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 aimed primarily at the
bodies responsible for setting C standards. 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:
● Type B1 standards for higher-level safety aspects (e.g. ergonomic principles, safety clearances from sources of danger,
minimum clearances to prevent parts of the body from being crushed).
● Type B2 standards for protective safety devices are defined for different 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 product-specific standards (e.g. for machine tools, woodworking machines, elevators, packaging machines,
printing machines etc.). Product standards cover machine-specific requirements. The requirements can, under certain
circumstances, deviate from the basic and group standards. Type C/product standards have the highest priority for machine
manufacturers who can assume that it fulfills the basic requirements of Annex 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 constructed.
A complete list of the standards specified 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 associated changes in machine concepts, the
standards (and C standards in particular) should be checked to ensure that they are up to date. Please note that the
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