Safety Engineering Characteristics - Festo MS6-SV D-10V24 Series Instructions Manual

Technical data
14.4

Safety engineering characteristics

Type
Safety function
Service-life value B
10
Service life
Achievable performance level (PL) in accordance with EN ISO 13849-1
With sensing of S1 and S2
With sensing of S1, S2 and
S3
Probability of dangerous failure per hour
PFH value MS6-SV- -D
...
d
PFH value MS6-SV- -D-S3
...
d
CCF measures
Note on forced checking pro-
cedure
1) Depending on the average number of actuations per year (nop).
Tab. 12 Safety engineering characteristics
Festo — MS6-SV-...-D-10V24 — 2019-05b
MS6-SV-D
Safe venting and protection against unexpected pressurisa-
tion
0.9 mill. switching cycles
[Years] 20
Category 3, PL d or category 3, PL e
Category 4, PL e
Fig.5.
è
Fig.6.
è
Relevant requirements EN ISO 13849-2
Failures due to a common cause (Common Cause Failure
è
– CCF).
Switching frequency at least 1/month
1)
23