Pilz PNOZ mo4p 4n/o - Manual (Page 27)

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Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]
8-3
8.1 Technical details
8 Technical details
The PFH value depends on the switching frequency and the load on the
relay output. If the service life graphs are not accessible, the stated PFH
value can be used irrespective of the switching frequency and the load,
as the PFH value already considers the relay's B10d value as well as the
failure rates of the other components.
CAUTION!
It is essential to consider the relay's service life graphs. The relay
outputs' safety-related characteristic data is only valid if the val-
ues in the service life graphs are met.