55
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
× (T
SCAN
+ T
AGV
) + (S
STOP
× L
STOP
)
results in a safety distance of:
S
1,800mm/s × (0.08s + 0.1s) + (1,900mm × 1.1)
= 2,414mm
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
= 2,414mm + 83mm + 0mm + 50mm + 0mm = 2,547mm
5.7.9.4
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
= 1,400mm + 83mm = 1,483mm
S
MAX
Largest width of the danger zone
from the axis of the rotating mirror
= G
BDIFF
1,400mm
Maximum speed
= V
MAXAGV
1,800mm/s
Response time
SD3-A1
(selectable)
0.08s
Response time of AGV control
= T
AGV
0.1s
Braking distance
= S
STOP
1,900mm
Factor for wear and tear on the brakes
1.1 (fixed addition to account for
wear and tear on the brakes)
Measurement error
= Z
SM
83mm
Distance between AGV and floor
= Z
AFLR
90mm (results in an addition of
50mm according to Fig. 5.7-3 for
calculating the addition for
inadequate floor clearance)
S
MAX
S
T
2
+ S
BDIFF
2
=
S
MAX
2,547mm
2
+ 1,483mm
2
=
=
Sample calculation of a maximum range of a detection zone
2,947mm
=
= T
SCAN
= L
STOP
Summary of Contents for SD3-A1
Page 1: ......
Page 12: ...12...
Page 40: ...40 Fig 5 4 5 Considering the maximum measurement distance when safeguarding an area...
Page 60: ...60 Fig 6 2 1 Example of a zone pair changeover for an AGV on a curved route...
Page 61: ...61 Fig 6 2 2 Example of zone pair changeover with combined with reducing speed of the AGV...
Page 101: ...101 13 13 Dimensional drawings of the SD3 A1...
Page 102: ...102 13 14 Dimensional drawings of the mounting system...
Page 106: ......