The reference contour field detects unintentional and intentional changes to the posi‐
t
ion or alignment of the safety laser scanner. Unintentional changes may be caused by
vibrations for example. An example of an intentional change is deliberate tampering to
disable the safety laser scanner’s functionality.
Figure 7: Reference contour field, shown in blue-green in this document
Contour detection field
T
he contour detection field monitors a contour of the environment. The safety laser
scanner switches the associated safety outputs to the OFF state if a contour does not
match the set parameters, because, for example, a door or flap is open.
The contour detection field is used for detecting changes in the environment and only
switches the outputs in the current monitoring case. By contrast, the reference contour
field is used for detecting changes at the safety laser scanner and switches all safety
outputs.
Warning field
T
he warning field monitors larger areas than the protective field. Simple switching func‐
tions can be triggered with the warning field, e.g. a warning light or an acoustic signal
can be triggered if a person approaches, even before the person enters the protective
field.
The warning field must not be used for safety applications.
PRODUCT DESCRIPTION 3
8021913/15ZW/2019-11-14 | SICK O P E R A T I N G I N S T R U C T I O N S | microScan3 – EFI-pro
19
Subject to change without notice
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