gefran TPD32-EV-...-4B - Figure 6.16.3.9: Nip-Rolls Control with Load Cell

—————— Instruction manual ——————
303
Nip-rolls control with load cell
M
M
E
E
0....+10V
+10V
-10V
Feed-forward
Feed-back
-10V
Set
Load cell
Reverse
Forward
Tension set
Forward
Reverse
Line speed
reference
(Internal ramp
master drive)
DRIVE
DRIVE
Line speed
Master
Nip-roll
Figure 6.16.3.9: Nip-rolls control with load cell
Machine data:
RatedspeedofslavemotorVn=3000rpm
Slavemotorsspeedcorrespondingtothemax.linespeed=85%Vn=2550rpm
Max.correctionofthedancer=+/-20%ofthelinespeed=+/-510rpm
Totheslavedrivemustbesenttheanalogsignalsregardingthelinespeedandthepositionoftheloadcellsignal
(0...+10V)andthetensionset(0...+10V),andthedigitalcommandsregardingtheenablingofthePIDcontrol.
Theregulatoroutputwillbesenttothespeedreference1.
Drivesetting:(belowareparametersregardingonlythePIDfunction)