Chapter 7 Appendix • 338 ARTDrive V2 series - Instruction Manual
7.5.5 Use of the Diameter Sensor
Dancer
Winder/Unwinder
M
Feed-forward
Feed-back
-10V
+10V
5Kohm
E
R
Sensor diameter
0-10V
Nip-roll
M
E
DRIVE
DRIVE
Figure 7.5.5-1: Winder/Unwinder Control with Diameter Sensor
The diameter sensor can be used in case of systems with automatic
changing unwinders. In such conditions it is necessary to know the value of
the starting diameter in order to calculate the reference of the motor angular
speed before carrying out the coil new winding procedure.
The transducer has to be set in order to supply a voltage signal proportional
to the winder diameter.
F
V
90 900
1V
10V
F
min
F
max
450
5V
Figure 7.5.5-2: Relationship Between the Transducer Signal and the Winder Diameter
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