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Manual – MOVIDRIVE® MDX61B Safety Module MOVISAFE® DCS..B Option
3
Safety architecture of the DCS..B option
Integrated Safety Technology
3 Integrated Safety Technology
The safety technology of the MOVISAFE
®
DCS..B option described below meets the
following safety requirements:
• Performance level e according to EN ISO 13849-1.
• SIL 3 according to IEC 61508
3.1 Safety architecture of the DCS..B option
The internal structure of the DCS..B option consists of two separate channels with
mutual comparison of results. High-quality diagnostic mechanisms for fault detection are
executed in both channels.
The structure corresponds to the architecture and operating principle of category 4
according to EN ISO 13849-1.
The means the overall architecture has the following structure:
Double reading of every input and diagnostics by cross comparison.
The specific safety technology characteristics of the respective component (sensor,
actuator) are listed in the respective technical data chapters. To assess the overall
system in terms of safety, you can use the characteristic safety values specified in the
"Technical Data" chapter for the subsystem DCS..B (PES).
INFORMATION
This product was certified by TÜV. Copies of the TÜV certificate are available from
SEW-EURODRIVE.
2405111435
PES = Programmable electronic system
I
A
= Input channel A
I
B
= Input channel B
L
A
= Logic channel A
L
B
= Logic channel B
O
A
= Output channel A
O
B
= Output channel B
c = Cross comparison
m = Monitoring
2408400907
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