Competence
The maintenance and proof test activities of the safety function must
be carried out by a competent person with expertise and knowledge
of the safety function as well as functional safety, as required by IEC
61508-1 clause 6 and ATEX/Ex regulations.
Residual risk
The safety functions are used to reduce the recognized hazardous
conditions. In spite of this, it is not always possible to eliminate all
potential hazards. Therefore the warnings for the residual risks must
be given to the operators.
Intentional misuse
The safety circuit is not designed to protect a machine against
intentional misuse.
Decommissioning
When you decommission the module, make sure that the safety of
the machine is maintained until the decommissioning is complete.
Mark clearly on the module that it is decommissioned.
Maintenance 77
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