Classification according to ZVEI, CB24I
Operating Manual PSEN ml s 1.1/2.1/2.2
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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".
Inputs
Drain
Source
Safety switch
C2
Safety control system
C2, C3
Drain parameters
Min.
Typ.
Max.
Test impulse duration
-
-
500 µs
Input resistance
9 kOhm
-
-
Capacitive load
-
-
1 nF
Test impulse interval
1,25 ms
-
-
Solenoid inputs
Drain
Source
Safety switch
C2
Safety control system
C2, C3
Drain parameters
Min.
Typ.
Max.
Test impulse duration
-
-
500 µs
Input resistance
16 Ohm
-
Capacitive load
-
-
1,5 nF
Safe 1-pole HL outputs
Source
Drain
Safety switch
C2
Evaluation device
C1, C2
Source parameters
Min.
Typ.
Max.
Test impulse duration
-
-
450 µs
Rated current
-
-
0,1 A
Capacitive load
-
-
70 nF
