Operating
Instructions
MSM
6
Override
8 008 329/O371/05-04-04 © SICK AG • Industrial Safety Systems • Germany • All rights reserved
Override
The override function allows material left within the range of
the photoelectric safety switch to be easily removed (e.g. after
a power failure, emergency stop, etc.). For this the
photoelectric safety switch is manually muted (by pressing a
button).
For a system reset (power off/on) an additional switch is
useful.
6.1
Override with standard MSM
Here the override is implemented by an external circuit. By way
of an additional key-operated switch relays K 1 / K 2 are
switched directly to 24 V and so override outputs OSSD 1 and
OSSD 2.
MSM
+24 V DC
EDM (6)
+24 V DC
OSSD 1 (3)
+24 V DC
OSSD 2 (4)
Fig. 8: Circuitry example: override function
K1
k1
K2
k2
Schlüssel-
Key-operated
taster
switch
GB
Section 6
195