Festo — ZSB-1/8-B — 2022-08c
Technical data
13
Fig. 4: PFH
D
value as a function of the average number of actuations per year (n
op
)
The PFH
D
value was calculated with SISTEMA in expert setting with limitation of the MTTF
D
value to
100 years.
Operating time
Observe the operating time (T
10D
in accordance with EN ISO 13849-1, C.3) of the control block for
two-hand start. The operating time is a function of the service life characteristic (B
10D
) and the average
number of annual actuations (n
op
). The operating time can be shorter than the specified duration of
use depending on the application. The control block for two-hand start must be replaced by the end of
the duration of use at the latest.
Fig. 5: Operating time T
10D
