Siemens 6SN1123-1AA00-0DA2 Configuration Manual page 268

05.01
However, Standards have not been drawn–up for all types of machines. For
machine tools for metal working, robots, and automated manufacturing sys-
tems, some Draft Standards and final Standards do exist, e.g. type C Stan-
dards. In many cases, Category 3 acc. to EN 954–1 is defined in these Stan-
dards for the safety–related controls. The basic requirement of this category is:
"Single–fault fail–safety with partial fault recognition". Generally, this requirement
can be fulfilled using a 2–channel system structure (redundancy). Sub–areas of
a machine control can also be classified with other Categories – B, 1, 2, or 4
according to EN 954–1.
Hazard analysis
According to the Machinery Directive 98/37/EC, the manufacturer of a machine
and risk or a safety component or the person or persons responsible for placing such
equipment on the market is legally obliged to perform a risk analysis in order to
assessment
determine all of the risks that may arise in connection with the machine or safety
component concerned. He must design and construct the machine or safety
component on the basis of this analysis.
A risk assessment must identify all residual risks that need to be documented.
For the technique to evaluate and assess these risks, among others, the follow-
ing Standards should be carefully observed EN 292 "General Design Guidelines
for the Safety of Machinery"; EN 1050 "Safety of Machinery, Guidelines for Risk
Assessment" and EN 954 "Safety–relevant Parts of Controls".
CE conformity
The machinery manufacturer or the company based in the European Economic
Community or persons that they have nominated must make a legal declaration
regarding the CE Conformance for the complete machine.
Note
The listed Directives and legislation represent just a selection to communicate
the essential goals and principles. This list does not claim to be complete.
© Siemens AG 2012 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition
8 Important Circuit Information
8.6 Application examples with SIMODRIVE 611
8
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