Safety Characteristic Data; Supplementary Data; Service Life Graph - Pilz PZE X4VP Operating Manual

PZE X4VP
Safety characteristic data
Operating EN ISO
mode 13849­1:
2008
PL
Safety con­
tacts,
delayed <30
s PL d
All the units used within a safety function must be considered when calculating the safety
characteristic data.
Supplementary data
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.
Service life graph
The service life graphs indicate the number of cycles from which failures due to wear must
be expected. The wear is mainly caused by the electrical load; the mechanical load is negli­
gible.
Operating Manual PZE X4VP
1003202­EN­08
EN ISO EN IEC
13849­1: 62061
2008
SIL CL
Category
Cat. 3 SIL CL 2
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.
CAUTION!
It is essential to consider the relay's service life graphs. The relay outputs'
safety­related characteristic data is only valid if the values in the service life
graphs are met.
EN IEC IEC 61511
62061
SIL
PFH [1/h]
D
2,48E­09 SIL 2
IEC 61511 EN ISO
13849­1:
PFD
2008
T [year]
M
1,47E­05 20
17