Appendices
A.5 EC Declaration of Conformity
Division into safety-critical and non-safety-critical areas
Nearly all systems contain parts that perform safety-related tasks (e.g. emergency stop
switch, protective grating, two-hand controls). To avoid having to apply safety-related criteria
to the entire controller, it is customary to divide the controller into two areas - one that is
critical to safety and one that is not critical to safety. No special demands are made as
regards safety in the area that is not safety-critical as an electronic fault would not have any
effect on the safety of the system. However, in the safety-critical area, only controllers and
circuits that comply with the relevant regulations, may be used.
Note
Even if an extremely high level of conceptual safety has been achieved in the design of an
electronic controller - e.g. through implementation of a multichannel design - strict adherence
to all instructions in the operator's guide is mandatory, as incorrect handling could invalidate
measures taken to prevent hazardous faults or create additional potential hazards.
A.5 EC Declaration of Conformity
Calling the Declaration of Conformity
SIMOTION D4xx product manual
Order no.: 6AU1900-0BK32-0AA0
To access the current Declaration of Conformity on the Internet, go to:
http://www4.ad.siemens.de/view/cs/en/15257461
D4xx
A-4 Manual, 12.2004, 6AU1900-1AJ32-0BA0
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