Content
Direction-cross-over light barrier
The direction-cross-over light barrier is a combination of a
direction light barrier and cross-over light barrier. Built-on
with 3 light barriers the first (socket 1) acts as a device for
the identification of the direction. The other two are acting
as a cross-over light barrier.
Release signal will be triggered only if in the first step the
light barrier 1 will be interrupted before the light barriers 2
and 3 will be interrupted at the same time.
This configuration is usefull in situations the movement of
the wanted object is surely predictable. The behaviour is
very selective.
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© eltima electronic 2003
