Cedes Safe2+ - Perimeter System Configurations

Operation Manual Safe2+ / Safe4
© CEDES Safety & Automation AG / June 2008 www.cedes.com 7
4.5. Perimeter systems
Perimeter systems are usually produced by means
of several single beam light barriers. But the flexibil-
ity of the Safe2+ or Safe4 system allows also the
production of vertical entry safeguarding according to
the standard EN 999. Such systems are composed
of active and passive elements in one compact pro-
file. The element length of each is 120 mm.
The big advantage of Safe 2+ or Safe4 Perimeter
systems is the easy way of mounting and the un-
complicated way of starting up the operation. The
time needed to connect the wires and aligning the
optics is drastically reduced in comparison to stan-
dard Perimeter systems consisting of single beam
light barriers, where often mirrors are also included
which can only be positioned with difficulties.
The protective field and the active elements respec-
tively, are clearly recognized as black surfaces with
the integrated optical lenses. The not monitored
areas (passive elements) are also clearly indicated
as yellow surfaces.
400
900
Distance to reference plane [mm]
Reference plane (e.g. ground)
0
CEDES
CEDES
300
1100
Distance to reference plane [mm]
Reference plane (e.g. ground)
0
700
CEDES
CEDES
300
1200
Distance to reference plane [mm]
Reference plane (e.g. ground)
0
600
900
CEDES
CEDES
Figure 9: Perimeter systems (2-, 3- and 4-beams), accord. to EN
999 [1998]