Safety Integrated
Function Manual, 08/2023, A5E03264275A
103
Deactivating safety functions
Only qualified personnel may deactivate or decommission a safety function.
After deactivating or decommissioning a safety function, a modified acceptance test or an
acceptance test of another safety function involved must be performed.
When deactivating individual safety functions or safety subfunctions, carefully ensure that
the safety of the overall system is not inadmissibly diminished or at risk; when necessary,
carefully apply suitable countermeasures.
The requirements relating to deactivating or decommissioning a safety function are specified
in IEC 61508-1, Chapter 7.17: "Decommissioning or withdrawing from service safety-related
E/E/PE systems " (electrical/electronic/programmable electronic systems):
• Before any deactivation or decommissioning, the consequences must be carefully
assessed. This involves assessing the effects of the recommended deactivation or
decommissioning on the functional safety of a safety-relevant E/E/PE system associated
with an End Use Certificate (EUC).
This applies to the hardware and the software (parameterization).
Decommissioning a safety function and modifying safety functions or safety subfunctions is
described in the SINAMICS S120 Function Manual Safety Integrated. It is available in the
Internet at the following address
(https://support.industry.siemens.com/cs/ww/en/ps/13231/man).
To Next Page
Loading...
