Installation manual
Page 24 of204
4 Safety related characteristics
4.1 General design, safety related architecture and characteristic data
The internal structure of the PSCBR-series consists of two separate channels with reciprocal
comparison of results. High quality diagnoses for fault detection are made in each of the two
channels.
With respect to architecture and function the internal structure corresponds with category 4 of
EN 13849-1.
I
A
O
A
L
A
I
B
O
B
L
B
m
m
i
i
c
i
m
i
m
Sensor
PES
Aktuator
S
A
S
B
The overall architecture therefore corresponds with the following structure:
Sensor
PES
Aktuator
Dual reading of each input and diagnose by cross-comparison
The specific safety related characteristic data of the corresponding module can be taken from
the technical characteristic data in chapter 3.
The characteristic data specified in chapter 3 (e.g. PI e and PFH-value acc. to table as
evidence acc. to EN 13849) for the partial system PES can be used for the safety related
assessment of the overall system.
Actuator
PES
Sensor
Summary of Contents for PSCBR-C-10 Series
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Page 181: ...Installation manual Page 181 of 204 Example for a risk analysis Gefahrenanalyse Risk analysis...