ARTDrive V2 series - Instruction Manual Chapter 7 Appendix • 333
7.5.3 Control of Winders/Unwinders with Dancer
M
M
E
-10V
+10V
Feed-forward
Feed-back
5kohm
+10V Forward
-10V Reverse
E
R
(Internal ramp
master drive)
Line speed
reference
DRIVE
DRIVE
Winder/unwinder
Dancer
Forward
Reverse
Nip-roll
Figure A.1.3: Control of Winders/Unwinders with Dancer
7.5.3.1 Machine Data
Maximum line speed =400m/min
Rated speed of the winder motor Vn = 3000rpm
Winder maximum diameter = 700mm
Winder minimum diameter = 100mm
Motor-winder reduction ratio = 0.5
One-pitch dancer
Dancer stroke from the lower limit switch to the electric 0 position = 160mm
The winder/unwinder Drive must receive the analog signals referring to the
line speed and to the dancer position (whose potentiometer is power
supplied at its ends with values included between -10... +10V) and the digital
commands referring to the PID control enabling.
The regulator output is sent to the speed 1 reference.