8
SICK MSL
8 007 653/09-04-01 Technical Description • MSL © SICK AG • Safety Systems • Germany • All rights reserved
4 Applications and application requirements
4 Applications
4.1 Applications
The MSL multi-beam safety light
barrier can be used for safeguarding
access to dangerous areas and for
danger zone protection.
Typical areas of application are:
‡
Hazardous zone guarding (
fig. 4)
‡
Access control for processing
areas (
fig. 5), cutting and stacking
machines, palleting areas and
paving machines.
4.2 Application
requirements
The protective functions of the MSL
can only be used when the
following conditions are satisfied:
‡
It must be possible to control the
machine or installation
electrically.
‡
It must be possible to halt
hazardous machine movement.
‡
The MSL must be so installed
that entry into the danger zone
must interrupt one or more of
the light beams.
An absolutely safe switch-off can
only then be assured if the light
beam diameter of 23 mm is fully
covered.
Release can only be achieved by
unlocking the restart inhibit with the
help of a restart switch.
The restart switch must be placed
such that it cannot be pressed from
inside the danger zone.
Fig. 5: Tri-beam MSL multi-beam safety light barrier for safeguarding access to a robot.
Umlenkspiegel
Corner mirror
Fig. 4: Access guarding with 5-beam MSL multi-beam photoelectric safety switch
