GE Industrial Solutions DV-300 DC Drive Users Manual - Manual (Page 282)

GEI-100332Ga
——— FUNCTION DESCRIPTION ———
6
154
6.16.3.10 Examples of application
Nip-roll control 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 6.16.3.8: Nip-roll control with dancer
Machine data:
Rated speed of slave motor Vn = 3000rpm
Slave motors speed correspondent to the max. line speed = 85% Vn = 2550rpm
Max. correction of the dancer = +/- 15% of the line speed = +/- 382.5rpm
The slave drive must be sent the analog signals regarding line speed and the position of the dancer (whose po-
tentiometer will be supplied between terminals -10V... +10V) and the digital commands regarding the enabling
of the PID control.
The regulator output will be sent to speed reference 1.
Drive setting: (below parameters regarding only the PID function)