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Product overview
1
Fig. 11: Switch-through pressure tolerance field
1 Ratio of p2 to p1 [%]
Example:
At an operating pressure of p1 = 4 bar with reference to the approved tolerance of ± 20% a switch-
through pressure of 1.2 to 2.8 bar is permissible.
4.3
Safety function in accordance with EN ISO 13849
The product is a safe, redundant mechatronic system designed for implementation of the safety
functions:
– Safe venting
– Protection against unexpected pressure build-up (pressurisation).
NOTICE
Loss of the safety function
The product must be brought to initial position (exhausted status) at least once a month to guarantee
the safety function.
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.
NOTICE
Loss of the safety function
Non-compliance with the technical data can lead to loss of the safety function.
The electro-pneumatic soft-start/quick exhaust valve has control technology features which enable
performance level e to be reached for the safety functions. This product has been designed and
manufactured in accordance with the fundamental and reliable safety principles of EN ISO 13849-2.
Festo — MS6(N)-SV-...-E-10V24 — 2021-11e
2
2 Time axis
15
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