ARTDrive V2 series - Instruction Manual Chapter 7 Appendix • 329
7.5.1.2 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 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 required 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
7.5.1.3 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 multiplier is therefore active.
Set
PID Mlt PI sel 1 = 1 The starting value is 1
In case the regulator PI Block has performed no correction, the line speed
reference (Feed-Forward) has to be multiplied by 1 and sent directly to the
Drive regulator speed.
With this application, the regulator usually carries out a proportional control.
The correction is stated as a percentage of the line speed, from 0 to the
maximum value.
Set PI clamp top and PI clamp bot so that, with a maximum mechanical
sealing of the dancer (maximum value of the analog input 1 connected to the
dancer reaction), and by setting the proportional gain of the PI block to 15%,
a corresponding proportional correction of the feed-forward is obtained.
Set therefore:
PI clamp top = 10
PI clamp bot = 0.1
Set PI P1 gain % = 15% 1 or 3 see error during test
Set PI I1 gain % = 0%
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