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Application examples with safety function 1
Not-
Aus
S21
S22
S11
Fct.: E-stop (1),
with cross fault detection
SIL 3, PL e, Cat. 4
Schaltleiste
S21
S22
S11
Fct.: Safety mat / Safety edge / Tape-
switch (4), with cross fault detection
SIL 3, PL e, Cat. 4
Schiebeschutztür
geschlossen
S21
S22
S11
Fct.: Safety gate (7),
without cross fault detection
SIL 3, PL e, Cat. 4
1)
1
) To achieve the stated safety classification the wiring has to be done with crossfault monitoring.
2
) To achieve the stated safety classification light curtains with selftest (type 4) according to IEC/EN 61496-1 have to be used.
Application examples with safety function 2
The safety function 2 is connected as well as safety function 1, but S11 S31, S12 S32, S21 S41 and S22
S42.
S12
M10757
Fct.: Safety gate (2),
with cross fault detection
SIL 3, PL e, Cat. 4
S12
M10754
Fct.: Exclusive or contacts (5),
with cross fault detection
SIL 3, PL e, Cat. 4
DC 24V
0V
S12
S21
M10752
Fct.: Light curtain (8),
without cross fault detection
SIL 3, PL e, Cat. 4
Schiebeschutztür
geschlossen
S21
S22
S11
S12
M10756
S1
S21
S22
S11
S12
S12
M11124
Empfänger
Sender
OSSD1
OSSD2
S22
S11 S12
M10751
2)
7
S1
S2
S21
S22
S11
Fct.: Two-hand control (3),
with cross fault detection
SIL 3, PL e, Cat. 4
Type III C to EN 574
Not-
Aus
S21
S22
S11
S12
M10753
Fct.: E-Stop (6),
without cross fault detection
SIL 3, PL e, Cat. 4
1)
S12
M10750
10/2015 EN
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