Information On Functional Safety; Safety Function In Accordance With En Iso 13849 - Festo MS6-SV D-10V24 Series Operating Instructions Manual

Product overview
4.3

Information on functional safety

4.3.1

Safety function in accordance with EN ISO 13849

The product achieves a performance level for the following safety functions:
– safe venting
– Protection against unexpected start-up (pressurisation) after EN ISO 14118
NOTICE
Loss of the safety function
Common cause failures (CCF) cause the failure of the safety function, since in this case both channels
in a two-channel system fail simultaneously.
If measures to control the CCFs are not observed, the safety function of the soft-start/quick exhaust
valve can be impaired.
• Make sure that the described measures are observed è Failures due to a common cause (Common
Cause Failure – CCF).
è 12.1 Safety data
NOTICE
Loss of the safety function
Non-compliance with the technical data can lead to loss of the safety function.
• Observe the technical data è 12 Technical data.
Failures due to a common cause (Common Cause Failure – CCF)
To achieve the desired performance level, the applicable measures against CCF must be implemented
in accordance with the specifications of EN ISO 13849-2.
PFH value
d
The PFH value depends on the model of the product and the annual actuation rate (n
d
12 Festo — MS6-SV-...-D-10V24 — 2022-06c
).
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