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5.4.8.3 Sample calculation of the depth of a detection zone
This example is based on the following application data (see 5.4-5):
The formula
S = ( K x ( T
SCAN
+ T
MACH
+ ( T
LAG
x L
LAG
))) + C
results in a safety distance of:
S = (1600 mm/s
*
(0.08 s + 0.1 s + (0.5 s * 1.1))) + 1080 mm = 2248 mm
The formula
S
T
= S + Z
SM
+ Z
AU
results in the detection zone depth:
S
T
= 2248 mm + 83 mm + 125 mm = 2456 mm
Largest width between the axis of
the rotating mirror and the
boundary of the danger zone
G
BDIFF
700 mm
Access speed
K
1600 mm/s (constant)
Response time of the SIMATIC
FS600 Laser Scanner
(adjustable)
T
SCAN
0.08 s
Response time of the machine or
system
T
MACH
0.1 s
Stopping time or lag time of the
machine or system
T
LAG
0.5 s (time for braking the
dangerous movement until
standstill)
Factor for increase in lag time
L
LAG
1.1 (fixed addition to account for
increased lag time)
Addition for system-specific
measurement error
Z
SM
83 mm (when dust algorithm is
switched off)
Addition caused by the mounting
position that is selected
Z
AU
125 mm (distance between the
front edge of the undercut to the
beam axis of the scanner)
Height of the sensor
scanning plane
H
300 mm
Safety-related constant
C
1200 mm – 0.4 * Height H
= 1080 mm
Summary of Contents for SIMATIC FS600
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