turck IM12-CD, Руководство по безопасности, Страница: 10 / 22

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Product Description
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4.1.2 Safety Function IM12-CD01-2R-1U
SIL2 – Loop Powered mode with one channel
SIL2
[E1]

[A1]
Safety Function:
If a Low signal is present at input [E1], the corresponding output relay (A1) is de-energized within maxi-
mum 40 ms, so that NO contact is open and NC contact is closed.
NE load connection:
Safety Function for NE (Normally Energized) load (de-energized in safe state) is available at Terminal
Blocks 7…8 [A1].
ND load connection:
Safety Function for ND (Normally De-Energized) load is available at Terminal Blocks 6…8 [A1].
SIL3 – Loop Powered mode with 1oo2 channel architecture
SIL3
[E1]

[A1+A2]
NE load
Safety Function:
If a 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 serial connected NO contacts are open
NE load connection:
SIL 3 Safety Function for NE (Normally Energized) load (de-energized in safe state) is available at Termi-
nal Blocks 7…4. Two NO contacts in series connection.
7
6
8
YE
9
10
3
5
4
YE
A1 (SIL 2)
E1
NC
NO
COM
NC
NO
COM
7
6
8
YE
9
10
3
5
4
YE
A1 (SIL 3)
E1
NC
NO
COM
NC
NO
COM