Chapter 5 Operating Instructions
C4000 Palletizer Std./Adv.
C4000 Fusion
48 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8012249/YT69/2016-02-25
Subject to change without notice
Configuration of blanking
5.4 Dynamic blanking for object pattern recognition
This blanking makes possible access protection without muting while fixed objects have
access to a system or machine (e.g. skids for car bodyshells).
If moving objects, in particular the legs of people, enter the protective field then the C4000
shuts down its output signal switching devices .
Depending on the protective field length, several objects in the protective field can be
blanked dynamically at the same time (see Tab. 3 on page 22). During this process the
size is monitored to check whether it is below the minimum size or above the maximum
size.
Once the objects have fully entered the protective field, the C4000 saves the object dis-
tances for the length of time the skid passes through the field. The distances are allowed
to change by the distance tolerance configured while passing through the field(see sec-
tion 12.3.1 on page 101).
In the case of dynamic blanking for object pattern recognition, different types of skid can
pass through the field. The protective field can also be used a permanent parking place.
If you use a C4000 with less than 750 mm protective field length, you must take
suitable protective measures against stepping over the protective field (see section 6.1
on page 58).
To ensure objects larger than 240 mm do not pass unintentionally through the protec-
tive field, the following additional measures must be taken:
Configure the number of objects that must be in the protective field at the same time to
at least 2.
Or:
Choose a protective field length of at least twice the step length = 1500 mm.
Or:
Take additional measures, e.g. an appropriate mounting height to prevent unintentional
passage through the field.
operation, object pattern
recognition
Notes
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