turck IM12-CD, Руководство по безопасности

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V01.0 | 2019/04
SIL3
[E1]

[A1+A2]
ND load
Safety Function:
If a simultaneous low signal is present at input [E1], connected by a single SIL3 signal source, the output
relay [A1] and [A2] are de-energized within maximum 40 ms, so in parallel connected NC contacts are
closed.
ND load connection:
SIL 3 Safety Function for ND (Normally De-Energized) load (energized in safe state) is available at
Terminal Blocks 6…8 (or 5…4 because externally connected in parallel). Two NC contacts in parallel
connection.
4.2 Safe state
IMX12-CD01-2R-2U The safe state is defined as the output relay is de-energized, so that NO contact
is open and NC contact is closed. (A1, A2, A3)
IM12-CD01-2R-1U The safe state is defined as the output relay is de-energized, so that NO contact
is open and NC contact is closed. (A1, A2).
Faults do not have to be acknowledged. If the fault is rectified, the device automatically re-
sumes operation and leaves the safe state.
7
6
8
YE
9
10
3
5
4
YE
A1 (SIL 3)
E1
NC
NO
COM
NC
NO
COM