Operating Instructions Chapter 3
C 4000
16 © SICK AG • Safety Systems • Germany • All rights reserved 8 009 221/16-11-00
Product description
3.4.5 Fixed blanking
Fig. 7: Schematic layout
of the fixed blanking
The light curtain C 4000 is capable of fixed-blanking one or several adjacent beams, e.g. to
allow continued operation in spite of an obstruction such as a table placed permanently in
the light path.
The blanked area will no longer be part of the protective field. Blanked objects must there-
fore be permanently located inside the blanked area (
). As soon as the object is removed
from the beam path, the light curtain will send a signal to disrupt the dangerous movement
(
). Protection is otherwise no longer guaranteed.
WARNING
Completely protect the blanked area!
The object must cover the entire distance between sender and receiver.
> If necessary, protect the areas to the left and right of the object against intrusion by fit-
ting mechanical barriers!
Fig. 8: Protecting a fixed blank-
ing using mechanical barriers
> Also, make sure that the object can only me removed as a whole together with the bar-
riers.
> After adapting the blanking, check the protective field with the test rod. Instructions are
found in chapter 6.3.3 on page 37.
Blanked area, sides protected by
mechanical barriers
To Next Page
Loading...
