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a
c
b
K1
K2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
SIMATIC FS600 Laser Scanner
a
=
b
=
c
=
Fig. 8.1-2:
Relays K1 and K2 must have forced contacts. They are operated directly at the two
failsafe semiconductor outputs OSSD 1 (X1-12) and OSSD 2 (X1-11).
A suitable mechanism must be provided for extinguishing sparks. Please note that
doing this will cause the switching time to be extended.
Channels "x" and "y" must be integrated for Category 3 in accordance with DIN EN 954-
1. Integrating one channel based on "z" is only permitted with a one-channel control
system and taking into consideration the results of a risk analysis.
Serial machine controls are admissible only insofar the valid regulations allow.
70
d e f
X1
Fuse 1.25 A, semi time-lag
Restart button
DZ 1/WF 1
Wiring the SIMATIC FS600 Laser Scanner with evaluation of the OSSDs,
zone pair changeover, restart interlock and static relay monitoring
K1
K1
K2
d
=
e
=
f
=
+24 V
GND
PE
x
y
K2
y
x
z
K1
K2
z
DZ 2/WF 2
DZ 3/WF 3
DZ 4/WF 4
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