The protective field must be wide enough to cover the width of the loaded vehicle with
supplement
s for measurement error and the lack of ground clearance. When calculat‐
ing the protective field width, the impact of turning must be considered separately.
If you define a number of monitoring cases with different protective fields, you must cal‐
culate the protective field size separately for each protective field used.
4.3.10.2 Supplement Z
F
f
or lack of ground clearance
This supplement is necessary, because, generally, a person is detected above the foot
and t
he braking process cannot take account of the length of the foot in front of the
point of detection. A person’s foot could be injured if a vehicle has no ground clearance.
Figure 22: Flat-rate supplement for lack of ground clearance
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 lump supplement for ground clearance under 120 mm is 150 mm. This supple‐
ment ma
y be reduced further in individual cases, see figure 23, page 34.
PROJECT PLANNING 4
8024596/15VP/2019-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | nanoScan3 I/O
33
Subject to change without notice