Contour detection field
T
he contour detection field monitors a contour of the environment. The electro-sensitive
protective device switches the associated safety outputs to the OFF state if a contour
does not correspond to the set specifications, e.g. because 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.
Collision protection field
T
he collision protection field detects oncoming industrial trucks in narrow aisles based
on the reference target. It has a greater scanning range than a protective field. With
the collision protection field, collisions of industrial trucks in narrow aisles can be safely
prevented.
The collision protection field is not suitable for detecting people.
The collision protection field may only be used in narrow aisles.
Figure 8: Collision protection field, shown in purple in this document, with reference target,
pr
otective field and warning field
Warning field
T
he warning field monitors larger areas than the protective field. Simple switching
functions 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
8025220/1L9Q/2023-08-14 | SICK O P E R A T I N G I N S T R U C T I O N S | microScan3 – EtherCAT®
19
Subject to change without notice
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