B
F
ground clearance
S
L
protective field length without a supplement for lack of ground clearance
Z
F
supplement for lack of ground clearance
The flat-rate supplement for a ground clearance below 120
mm is 150
mm. This
supplement may be reduced further in individual cases. Read the supplement actually
required for your vehicle’s ground clearance from the following graph.
50
50
60
120
0
100
150
Z
F
B
F
[mm]
[mm]
Figure 27: Minimum supplement for lack of ground clearance
B
F
ground clearance in mm
Z
F
supplement for lack of ground clearance in mm
Calculation example for the protective field length S
L
S
L
= S
A
+ TZ + Z
R
+ Z
F
+ Z
B
where:
•
S
L
= protective field length in millimeters (mm)
•
S
A
= stopping distance in millimeters (mm)
•
TZ = tolerance range of the safety laser scanner,
•
Z
R
= supplement for reflection-based measurement errors in millimeters (mm)
•
Z
F
= supplement for lack of ground clearance of the vehicle in millimeters (mm)
•
Z
B
= supplement for the decreasing braking force of the vehicle, from the vehicle
documentation, in millimeters (mm)
Stopping distance S
A
The stopping distance comprises the vehicle’s braking distance and the distance cov‐
ered during the safety laser scanner’s response time and the vehicle control’s response
time (including signal propagation time).
NOTE
A vehicle’s braking distance does not increase linearly with increasing speed, but rather
in a squared relationship.
4
PROJECT PLANNING
44
O P E R A T I N G I N S T R U C T I O N S | outdoorScan3 Core I/O
8023152/1G5N/2022-06-28 | SICK
Subject to change without notice