Chapter 5 Operating Instructions
C4000 Palletizer Std./Adv.
C4000 Fusion
46 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8012249/YT69/2016-02-25
Subject to change without notice
Configuration of blanking
5.3 Self-teach dynamic blanking for pallet detection
The beams on the safety light curtain are, for instance, aligned with the feet on a pallet or
mesh crate or the wheels on a trolley. Several objects move into the protective field on the
freight carrier.
T
he C4000 allows objects up to a size of 240 mm. It learns the distances between the
objects and as a result makes it possible, e.g., for different pallet types to enter a system
(see Fig. 27, ).
If other objects, in particular people, enter the protective field, then the C4000 shuts down
its output signal switching devices (see Fig. 27, ).
When objects enter the protective field, first the validity of the object is checked based on
the maximum object size ().
Once the objects have fully entered the protective field, the C4000 saves the object distan-
ces for the length of time the pallet passes through the field . The distances are allowed
to change by twice the reduced resolution plus two additional beams during movement
through the protective field (see also section 12.3.1 “Size and distance tolerances”on
page 101).
Once the objects have left the protective field again, the values saved are reset. When the
next object enters the field, first its validity is checked based on the object size, then the
distances are saved and monitored.
You can configure the pallet detection function in the CDS on the C4000 (receiver).
You do not need to configure object sizes or distances for pallet detection. The maximum
object size allowed is fixed at 240 mm.
operation, pallet detection
distances
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