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Operating Instructions
L4000 system
Fig. 7: Safety distance S to
the light beam
Note
Tab. 3: Height of the
beams above the floor
8010009/1KO6/2023-08-16
Subject to change without notice
Installation and mounting
Reach or approach speed of personnel,
Other parameters that are stipulated by the standard depending on
the application.
How to calculate the safety distance S according to EN ISO 13855
and EN ISO 13857:
The following calculation shows an example calculation of the safety
distance. Depending on the application and the ambient conditions, a
different calculation may be necessary.
First, calculate S using the following formula:
S
= K x T + C [mm]
Where ...
T
= Stopping/run-down time of the machine
+ response time of the L4000 system after interruption of
light path [s]
S
= Safety distance [mm]
K = Approach speed of personnel 1.6 [m/s]
C
= Dependent on the number of beams (1, 2, 3 or 4) see Tab. 3
Number of beams
Height of the beams
above the floor
[mm]
C
SICK AG • Industrial Safety • Germany • All rights reserved
Safety distance S (D
)
s
1
2
750
400
900
1200
850
Chapter 4
Hazardous
point
3
4
300
300
700
600
1100
900
1200
850
850
en
75
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