PNOZ s11
Operating Manual PNOZ s11
21693-EN-11
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Classification according to ZVEI, CB24I
The following tables describe the classes and specific values of the product interface and
the classes of interfaces compatible with it. The classification is described in the ZVEI posi-
tion paper "Classification of Binary 24 V Interfaces - Functional Safety aspects covered by
dynamic testing".
Input
Interfaces
Drain
Interface Module
Class C0
Source
Interface Sensor
Class C1, C2, C3
Drain parameters
Max. test pulse duration 5 ms
Min. input resistance 0,2 kOhm
Max. capacitive load 10 nF
Relay outputs
Interfaces
Source
Interface Module
Class A
Drain
Interface Actuator
Class A
Source parameters
Min. switching voltage 12 V
Max. switching voltage 250 V
Min. switching current 0,003 A
Max. switching current 6 A
Potential isolation yes
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 switch frequency and the load of the relay output.
If the service life graphs are not accessible, the stated PFH value can be used irrespective
of the switch 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.
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