Light Barrier Function With Quick - Duerkopp Adler 271 Installation Instructions Manual

9.3 Light Barrier Function with Quick

16
c) 884 - Regulation parameter with Quick
With the value set in parameter 884 the rpm regulation
characteristics are adapted to the individual load of
the machine class to be powered. Heavy machines
require a greater value than light machines.
A too high set value can be heard in an audible "motor
growl" in the lower rpm ranges.
A too low set value shows itself in regulation problems
with higher performance requirements (e.g. thread
trimming).
On the printed circuit board of the control panel DB 5
there is a wire switch for changing the light barrier
sensitivity.
On delivery of the control panel this switch is closed, that
is the greatest sensitivity is switched on and thus
prepared for connection to the light reflection barrier
Weko 7245 (Part no.: Z133 103).
Other manufacturer's light barriers (e.g. Leutze)
sometimes require a reduced sensitivity. In this case the
wire switch must be opened.
In case of problems with the light barrier function we
recommend that this switch also be checked. Here the
front of the control panel must be opened.