Fotoelektrik Pauly – Light barriers
E_52692 Ref. 2019-29
16/24
Fotoelektrik Pauly GmbH, Wahrbrink 6, D-59368 Werne, T: +49 2389/402 27-70, F: +49 2389/402 27-77
http://www.fotoelektrik-pauly.de, eMail: info@fotoelektrik-pauly.de
4.5.2 Distance monitoring accuracy
The clearance distance (
) is determined by
the fixed beam angle set (
). The accuracy
and the reproducibility of the clearance
distance depend on the movement tolerances
of the individual crane components. Horizontal
lateral shifts or rotations of the crane bridges
have a direct impact on the installation position
of the reflex light barrier (
) or the reflector (
)
and accordingly shorten or lengthen the
clearance distance set.
Lengthening the clearance distance
Shortening the clearance distance
System-related movement tolerances in crane systems, crane/rail track and the
associated impact on the switching behaviour of the distance monitoring system should
be taken into consideration at the planning stage for the crane system and crane/rail
track.
Fig.: 4.5.2-1: Set clearance distance
Fig.: 4.5.2-2: Shifting to the left
Fig.: 4.5.2-3: Shifting to the right
Fig.: 4.5.2-4: Rotation to the left
Fig.: 4.5.2-5: Rotation to the right
