When the driver enters a hall for the first time
after starting work, he must be certain that the
ceiling sensor system is functioning correctly.
Despite the ceiling sensor system being instal-
led, the driver must also check the speed indi-
cator on the display-operating unit on a regu-
lar basis to ensure that he does not exceed
the maximum speed permitted for the environ-
ment.
●
Entering a hall
The ceiling detector system automatically
detects whether the truck enters a hall. The
system then automatically slows the truck to
the maximum speed that is set for the hall.
●
Leaving a hall
If the truck leaves the hall again, the ceiling
detector system enables the maximum
speed set for areas outside the hall. Due to
the range of the sensor, this may not hap-
pen until the truck is a few metres away
from the hall exit. Before the truck is able to
accelerate to the maximum speed permitted
for outdoor areas, the speed limitation must
still be unlocked. To do this, release the ac-
celerator briefly and then operate the accel-
erator again.
●
Switching on the truck in a hall
If the truck is switched on inside a hall, the
ceiling detector system detects the hall ceil-
ing and reduces the driving speed to the
maximum speed that is set for halls.
Possible limitations for object recogni-
tion
●
If the truck moves under larger overhead
structures outdoors, e.g. a pedestrian
bridge, the ceiling sensor system may inter-
pret this overhead structure to be a hall ceil-
ing and reduce the maximum speed.
●
In rare cases, it may occur that the ceiling
sensor system does not recognize a ceiling
and does not then reduce the speed. This
can happen if the signals from the ceiling
sensor are insufficiently reflected due to the
ceiling geometry; for example, if there are
large window areas at a 45° angle.
In these cases, the sensitivity and the range of
the ceiling sensor system must be adjusted.
For more information, refer to the next chap-
ter.
Operation
4
Auxiliary equipment
22557348011850 EN - 08/2020 - 12
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