Functional Safety HiD2022*, KFD2-STC5-(Ex)*, KFD2-STV5-(Ex)*
Planning
20
21
-0
4
13
3.2
Safety Function and Safe State
Safety Function
The device transfers analog signals from the input to the output with a deviation of less
than 2 %.
Values outside the range of the output signals indicate a fault in the periphery or within
the device and a dangerous detected failure. See table below.
Safe State
The safe state depends on the limit value in the respective application.
Reaction Time
The reaction time for all safety functions is < 100 ms.
Device
Input signals
Output signals
KFD2-STC5-1, KFD2-STC5-Ex1,
KFD2-STC5-Ex1.H
KFD2-STC5-1.2O, KFD2-STC5-Ex1.2O,
KFD2-STC5-Ex1.2O.H,
HiD2022, HiD2022SK, KFD2-STC5-2,
KFD2-STC5-Ex2
0/3.6 mA to 21 mA
0/4 mA to 20 mA
KFD2-STV5-1-1, KFD2-STV5-Ex1-1,
KFD2-STV5-Ex1.2O-1, KFD2-STV5-2-1,
KFD2-STV5-Ex2-1
0/0.9 V to 5.25 V
0/1 V to 5 V
KFD2-STV5-Ex1-2, KFD2-STV5-Ex1.2O-2,
KFD2-STV5-Ex2-2
0/1.8 V to 10.5 V
0/2 V to 10 V
Table 3.1
