Operating instructions

Chapter 4 Operating Instructions
C4000 Standard/Advanced
32 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8009861/WA65/2012-06-12
Subject to change without notice
Configurable functions
Object monitoring
Despite the floating blanking of the area, the safety light curtain monitors whether there
a
re objects in the area with floating blanking. For areas with floating blanking you must
configure which type of object monitoring is to apply to the areas:
Object
monitoring
Description
Complete The blanked area must be completely covered by the object within the
size tolerance. If this is not the case, then the safety light curtain
switches to red.
Partial The blanked area does not need to be covered by an object. However
within the size tolerance it can be partially or completely covered. If
you have configured several areas with floating blanking, then only
one area can use this setting.
 Directly adjacent to the area with floating blanking with partial object monitoring you
can only configure areas with fixed blanking.
 During operation an area with floating blanking with partial object monitoring is allowed
to overlap with an area of fixed blanking without positional tolerance.
Blanked areas require a separate risk analysis!
A blanked area is in principle a hole in the protective field. Check in detail whether and
where blanking is actually required. You must protect the blanked area in another way, e.g.
mechanically. Otherwise you must take the blanked area into consideration in the
calculation of the minimum distance and mount the safety light curtain appropriately.
 After modifying the blanking, check the protective field with the test rod. Instructions
can be found in chapter 7.3.3 on page 65.
 Also pay attention to the warnings in the related chapter.
Tab.
10
:
Types of object
monitoring for floating
blanking
Notes

WARNING
Fig.
17
:
Example of
mechanical protection of
fixed or floating blanking
Blanked area, sides
protected by
mechanical barriers