Minimum Distance To Reflective Surfaces; Fig. 8: Minimum Distance To Reflective Surfaces - SICK L4000 Instrucciones De Operación

Operating Instructions
L4000 system
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WARNING
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WARNING
Fig. 8: Minimum distance
to reflective surfaces
Note
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WARNING
8010009/YTA2/2016-05-02
Subject to change without notice
Installation and mounting
Observe safety distance!
The L4000 system is to be mounted such that on the interruption of
the light beam, the hazardous point is only reached when the
dangerous state of the machine has been halted.
Risk of failure to detect!
Persons in the hazardous area, but outside the protective field, will
not be detected. It is to be ensured that any dangerous state of the
machine can only be initiated if there are no persons in the hazar-
dous area.
The L4000 system must not be used for hand and finger protection.
The statutory and local rules and regulations apply to the usage and
installation of the protective device. These regulations vary depending
on the application.

4.1.2 Minimum distance to reflective surfaces

The light beams from the sender may be deflected by reflective
surfaces. This can result in failure to detect the object.
All reflective surfaces and objects (e.g. material bins) must therefore
be located at a minimum distance (a) from the protective field of the
system. The minimum distance (a) depends on the distance (D)
between sender and receiver.
Reflective surface
Field of view
Sender and receiver optics have the same field of view.
When using transparent protective screens the minimum distance
values to reflective surfaces may change.
 SICK AG • Industrial Safety Systems • Germany • All rights reserved
Minimum distance a
Distance D sender – receiver
en
Chapter 4
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