turck IM12-CD, Руководство по безопасности

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V01.0 | 2019/04
SIL3 – Loop Powered mode with 1oo2 channel architecture and E3 as input
SIL3
[E3]

[A1+A2]
NE load
Safety Function:
If a simultaneous low signal is present at input [E3], 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.
SIL3
[E3]

[A1+A2]
ND load
Safety Function:
If a simultaneous low signal is present at input [E3], 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.
7
6
8
A1
YE
YE
9
10
E3
11
12
13
14
3
5
4
1
2
YE
NC
NO
COM
NC
NO
COM
(SIL 3)
7
6
8
A1 YE
YE
9
10
11
12
13
14
3
5
4
1
2
YE
NC
NO
COM
NC
NO
COM
(SIL 3)
E3