NORSTAT Safety Relays - Handbuch (Seite 64)

application guide safety relays from riese electronic page 61
i) SAFE C1
2-channel e-stop application with monitoring
of start circuit and cross circuit check.
The e-stop switch (safety gate switch resp.)
must be attached to the input circuits (S11/S12,
S21/S22), and the start button must be attached
to the start circuit (S34/S21). The safety outputs
are activated after reclosing the reset circuit
(pressing the start button).
category 4; SIL3; PLe reachable
2-channel safety gate application with auto
start and cross circuit check .
The safety gate switches must be connected to
the e-stop circuits (S11/S12, S217S22). The
bridge between S34-S11 enables auto start
functionality. After applying power supply the
outputs will be activated immediately.
category 4; SIL3; PLe reachable
1-channel application with monitoring o f
reset circuit.
To enable one-channel functionality S35 and
S11 have to be brigded. The e-stop switch or
safety gate switch resp. of the safety gate must
be connected between terminals S21 and S22.
The start button must be attached to the start
circuit between S21 and S34 (start-circuit input).
category: 2; SIL1; PLd reachable,
3*; SIL2; PLd reachable
1-channel application without monitoring o f
reset circuit.
Equal as the example from the application 3, but
with a bridge between terminals S34 and S11 for
disabling of reset circuit monitoring. At closed
input circuits the outputs are activated after the
connection of supply voltage.
category: 2; SIL1; PLd reachable,
3*; SIL2; PLd reachable
S35
S34 S22 S12 S11 S21 S32
S33 S36 S37
S35
S34 S22 S12 S11 S21 S32
S33 S36 S37
S35 S34 S22
S12
S11 S21 S32
S33 S36 S37
S35 S34 S22
S12
S11 S21 S32
S33 S36 S37
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