Series Of Standards En 61508 (Vde 0803) - Siemens SINUMERIK 840D sl Function Manual

Data on non-electrical systems is not included in EN 62061. The standard provides detailed
information on implementing safety-related electrical, electronic, and programmable electronic
control systems. EN ISO 13849-1 must be applied for non-electric systems.
Note
Details of basic subsystems that have been implemented and integrated are available as
"function examples".
Note
IEC 62061 has been ratified as EN 62061 in Europe and harmonized as part of the Machinery
Directive.
2.2.6

Series of standards EN 61508 (VDE 0803)

The series of standards describe state-of-the-art technology.
EN 61508 is not harmonized in line with any EU directives, which means that an automatic
presumption of conformity for fulfilling the protective requirements of a directive is not implied.
However, the manufacturer of a safety-related product can use EN 61508 to fulfill basic
requirements from the European directives according to the new concept. For instance in the
following cases:
● If no harmonized standard exists for the application in question. In this case, the
manufacturer can use EN 61508, although no presumption of conformity applies here.
● A harmonized European standard (e.g. EN 62061, EN ISO 13849, EN 60204-1) makes
reference to EN 61508. This ensures that the appropriate requirements of the directives
are fulfilled ("standard that is also applicable"). When manufacturers apply EN 61508
correctly and responsibly in accordance with this reference, they can use the presumption
of conformity of the referencing standard.
The series of EN 61508 standards covers all the aspects that must be taken into account when
E/E/PES systems (Electrical, Electronic, and Programmable Electronic System) are used in
order to execute safety functions and/or to ensure the appropriate level of functional safety.
Other hazards, e.g. hazards as a result of electric shock are not included in the standard.
A new aspect of EN 61508 is its positioning as "International Basic Safety Publication", which
makes it a framework for other sector-specific standards (e.g. EN 62061). As a result, this
standard is now accepted worldwide, particularly in North America and in the automotive
industry. Today, many regulatory bodies already specify it, e.g. as basis for NRTL listing.
A new aspect of EN 61508 is also its system approach. This extends the technical requirements
to the complete safety installation - from the sensor to the actuator - the quantification of the
probability of dangerous failure due to random hardware failures and the generation of
documentation associated with every phase of the complete safety-related lifecycle of the E/
E/PES.
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Regulations and standards
2.2 Machine safety in Europe
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