Fotoelektrik Pauly – Light barriers
E_52692 Ref. 2019-29
11/24
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: [email protected]
4.3.2 Approach movement
The reflex light barrier illuminates the edge of the
reflector during the approach movement, when the
set clearance distance is reached. The first system in
the reflex light barrier sights the reflector. The
switching outputs of the first system of the reflex light
barrier are switched off
–
pre-disconnection
.
If the approach is continued and the second set
clearance distance is reached, the second reflex light
barrier illuminates the edge of the reflector. The
switching outputs of the second system in the reflex
light barrier are switched off.
T h e s a f e t y - r e l a t e d s w i t c h i n g o u t p u t s
s w i t c h e d o f f a n d c r a n e t r a v e l i s
b r o u g h t t o a h a l t ! T h e c r a n e s s t o p s
w i t h a s a f e d i s t a n c e f r o m e a c h o t h e r .
Fig.: 4.3.2-1
Fig.: 4.3.2-2
The level of the light signal depends on the degree of coverage by the light spot of the reflex light
barrier on the reflector. Even very small amounts of cover lead to very high signal levels. This
results in a signal level with extremely steep edges.
Crane 2
Crane 1
Attention
Crane 2
Crane 1
