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You can connect a contactor to a digital safety output and connect a motor single-channel
using normally open contacts of the contactor. Connection is possible to each of the four
digital safety outputs. You must observe the warning messages for single-channel use.
With this connection, you can achieve SIL2/Cat.2/PLd by re-reading the relay states.
Please consider the instructions for single-channel operation with regard
to the demand rate.
Chap. 3.7 ‘Connection examples’ page 91
WARNING!
Important note to single fault security!
Never use a single digital safety output alone for the safety function if
single fault security is required!
If single fault security is required, you have to integrate a second discon-
nection facility (e.g., a line contactor K4) in the safety application by e.g.
analysing the relay states read back.
With this connection, you can achieve SIL3/Cat.4/PLe by re-reading the relay states.
Connection 4 motors,
external single-channel
with feedback (1 contactor
per motor)
Connection 4 motors, 2-
channel with feedback (2
contactor per motor)
VIPA System SLIO
Deployment
Connection examples > Connection examples for digital safety outputs
HB300 | SM-S | 02x-1SD10 | en | 20-02
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