NORSTAT Safety Relays - Handbuch (Seite 59)

application guide safety relays from riese electronic page 56
Dual channel protection door monitoring.
With the dual channel protection door monitoring
terminals T22 and T12 are not bridged. The
function is similar to application No. 6. In this
application a fault in the protection door
monitoring switch will be detected.
Suitable up to category 3; SIL2; PLd reachable
Dual channel protection door monitoring with
extended control of the release switch.
If the protection door switches are closed, the
output contacts remain unchanged. Through a
short operation of the release contacts 13-14, 23-
24 and 33-34 close after the reopening of the
switch with a delay of approximately 100 ms.
After opening the protection door switches the
contacts return to their normal position without
delay.
Suitable up to category 3; SIL2; PLd reachable
Dual channel protection door monitoring with
automatic activation.
In this application the activation of the device
works automatically, since the terminals T33 and
T34 are bridged. If the protection door switch is
closed, the contacts close with a delay of
approximately 100 ms.
After opening the protection door switches the
contacts return to their normal position without
delay
Suitable up to category 3; SIL2; PLd reachable
T22 X1
F
re
ig
ab
e/
re
le
as
e
T33 T11 T34 T12 X2
S1 S1
T12
S2 S2
13 23 41 33
T22
Freigabe/
release
X1 T33 T11 T34 T12 X2
S1 S1
T12
S2 S2
13 23 33 41
T22 X1 T33 T11 T34 T12 X2
S1 S1
T12
S2 S2
23 13 41 33
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