GEFRAN-SIEI ARTDrive Vector V2 400Vac Series, Instruction Manual

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Chapter 7 Appendix • 328 ARTDrive V2 series - Instruction Manual
7.5 - Applications Examples for the PID Function
7.5.1 - Control of Nip Rolls with Dancer
M
M
E
E
-10V
+10V
+10V
-10V
Feed-forward
Feed-back
5Kohm
Dancer
Forward
Reverse
Line speed
reference
Forward
Reverse
(Internal ramp
master drive)
DRIVE
DRIVE
Master Nip-roll
Figure 7.5-1: Control of Nip Rolls with Dancer
7.5.1.1 Machine Data
Rated speed of the Slave motor Vn = 3000rpm
Slave motor speed corresponding to the max. line speed = 85% Vn =
2550rpm
Maximum dancer correction = ±15% of the line speed = ±382.5rpm
The Drive of the Slave nip roll has to receive the analog signals referring to
the line speed and to the Dancer position (whose potentiometer will be power
supplied at its ends with values included between –10V…+ 10V) and the
digital commands referring to the PID control enabling.
The output of the PID regulator is sent to the speed 1 reference.