59
5.7.9.3 Sample calculation of the depth of a detection zone
This example is based on the following typical application data (without access against
the direction of travel and without retro-reflectors):
The formula
S =
V
MAXAGV
x (T
SCAN
+ T
FTS
) + (S
STOP
x L
STOP
)
results in a safety distance of:
S =
1800 mm/s * (0.08 s + 0.1 s) + (1900 mm * 1.1) = 2414 mm
=
2414 mm
The formula
S
T
=
S + Z
SM
+ Z
REFL
+ Z
AFLR
+ Z
AU
results in the following required depth of the detection zone in the direction of travel:
S
T
= 2414 mm + 83 mm + 0 mm + 50 mm + 0 mm = 2547 mm
5.7.9.4 Sample calculation of a maximum range of a detection zone
The formula
S
BDIFF
= G
BDIFF
+ Z
S
yields, under consideration of the width of the danger zone results in the maximum
distance to be monitored:
S
BDIFF
=
1400 mm + 83 mm = 1483 mm
S
MAX
= 2947 mm
Largest width of the danger zone
from the axis of the rotating mirror
= G
BDIFF
1400 mm
Maximum speed
= V
MAXAGV
1800 mm/s
Response time SIMATIC FS600
Laser Scanner (selectable)
= T
SCAN
0.08 s
Response time of AGV control
= T
AGV
0.1 s
Braking distance
= S
STOP
1900 mm
Factor for wear and tear on the brakes= L
STOP
1.1 (fixed addition to account for
wear and tear on the brakes)
Measurement error
= Z
SM
83 mm
Distance between AGV and floor
= Z
AFLR
90 mm (results in an addition of
50 mm according to Fig. 18 5.7-3
for calculating the addition for
inadequate floor clearance)
S
MAX
S
T
2
2
S
BDIFF
222222
2
+
=
S
MAX
2547mm
2
1483mm
2
+
=
Summary of Contents for SIMATIC FS600
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