Distance (a)
Code Cl
80
*---
Distance (a) plus radius (r)
Exarnple
current radius (r) =
minimum
radius
current distance between ultrasonic
Sensor
and
surface
of winding bale (a )
Voltage supplied by the ultrasonic
Sensor
= 150mm
=
1000 mm
:=
8V
Cl880
=
9.2
V
=
8
V
‘Ooo
rom,o+;T
mm
9.7,.2
Signal of the ultrasonic Sensor: radius
Signal
For setting the
diameter
detection by means of an ultrasonic
Sensor
which
detects the
diameter
Signal,
zero has to be
programmed via
code
Cl
80.
9.7.3
Further
information
about
the radius detection
The signs of the value set
under
Cl80 and the input
Signal
must
never be the same to ensure that the addition results in the
required radius
Signal.
The
percentage
of the radius is displayed via
code
CO49 if Cl72 =
-0-. In this case 100%
=l
OV.
For
diameter
detection a ramp function generator is connected.
The acceleration time is entered via
code
C220
and the
deceleration time is entered via
code
C221. In
Order
to minimize
angular acceleration in
case
of wire breakage, it is recommended
thalt
high values for acceleration and deceleration times are
programmed. The acceleration and deceleration times are to be
set such that the
diameter
changes
tan
be immediately detected
even at
vmax
and
minimum
diameter.
API absolute-value generator is connected in series to the ramp
function generator (only if CO5
=
201 or 202). As a result, an
unsigned number is generated if the result of the addition of the
Cl 80 value plus the input value is negative.
lam
109
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