ARTDrive V2 series - Instruction Manual Chapter 7 Appendix • 331
7.5.2.1 Machine Data
Rated speed of the Slave motor Vn = 3000rpm
Slave motor speed corresponding to the max. line speed = 85% Vn =
2550rpm
Maximum correction of the loading cell = ±20% of the line speed = ± 510rpm
The drive of the Slave nip roll must receive the analog signals referring to the
line speed, to the loading cell (0 ...+10V) and to the tension (0 ...-10V), plus
the digital commands referring to the PID control enabling.
The regulator output is sent to the speed 1 reference.
7.5.2.2 Input/Output
Drive settings: (only those referring to the PID function are described)
Connect to the analog input 1 the Dancer cursor.
Select PID fbk src = An inp 1 output
Connect to the analog input 2 the line speed reference (feed- forward).
Select PID inp FF src = An inp 2 output
Connect to the analog input 3 the tension reference.
Select PID draw src = An inp 3 output
Connect to the Digital input 1 the input enabling the PID PI Block
Select PID PI enab src = DI 1 monitor
Connect to the Digital input 2 the input enabling the PID PD Block
Select PID PD enab src = DI 2 monitor
In case just one contact is needed to enable the PI and PD section, it is
possible to connect also PID PD enab src on the digital input 1 as described
below.
Select PID PD enab src = DI 1 monitor
Connect to the speed 1 reference the PID output
Select Speed ref 1 src = PID out mon
Set Ramp out enable = Disable
7.5.2.3 Parameters
Set Full scale spd equal to the motor speed corresponding to 100% of the
line speed.
Full scale spd = 2550 rpm
Connect :
Mlt PI sel 0 = Null
Mlt PI sel 1 = One
The selection of the PID Mlt PI sel 1 selector is therefore active
Set:
PID Mlt PI sel 1 = 1 The starting value is 1
Without a correction performed by the regulator PI Block, the line speed
reference (Feed-Forward) must be multiplied by 1 and must be sent directly
to the Drive speed regulator. The regulator usually carries out a Proportional-
Integral control. The correction is stated as a percentage of the line speed,
To Next Page
Loading...