PNOZ XV3P
Operating Manual PNOZ XV3P
20122-EN-05
32
Safety characteristic data
NOTICE
You must comply with the safety-related characteristic data in order to
achieve the required safety level for your plant/machine.
Operating
mode
EN ISO 13849-1:
2008
PL
EN ISO 13849-1:
2008
Category
EN 62061
SIL CL
EN 62061
PFH
D
[1/h]
EN ISO 13849-1:
2008
T
M
[year]
Safety contacts,
instantaneous
PL e
Cat. 4
SIL CL 3
2,31E-09
20
Safety contacts,
delayed <30 s
PL d
Cat. 3
SIL CL 3
2,64E-09
20
Safety contacts,
delayed ≥30 s
PL c
Cat. 1
SIL CL 1
2,87E-09
20
All the units used within a safety function must be considered when calculating the safety
characteristic data.
INFORMATION
A safety function's SIL/PL values are
not
identical to the SIL/PL values of
the units that are used and may be different. We recommend that you use
the PAScal software tool to calculate the safety function's SIL/PL values.
Supplementary data
CAUTION!
It is essential to consider the relay's service life graphs. The relay outputs'
safety-related characteristic data is only valid if the values in the service life
graphs are met.
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.
