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

Page: 341 / 387

ARTDrive V2 series - Instruction Manual Chapter 7 Appendix • 341
Select
PID inp FF src
=
Ramp out mon
Connect to the speed reference 1 the PID output
Select
Speed ref 1 src
=
PID out mon
Set
Ramp out enable
= Disable
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
7.5.6.3 Parameters
Set
Full scale spd
equal to the motor maximum speed.
Full scale spd
= 3000 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
Without any correction on the side of the regulator PI Block, the reference of
the line speed (Feed-forward) has to be multiplied by 1 and sent directly to
the Drive speed regulator.
Set
PI lim top
and
PI lim bot
in order to obtain a maximum correction of the
PI Block equal to 100% of the line speed.
The
PI lim top
and
PI lim bot
parameters can be considered, respectively,
as a maximum and minimum multiplicative factor of the feed-forward.
PI lim top
= 1
PI lim bot
= 0
With this application the regulator carries out a proportional-integral control.
The gains of the different components have to be set, experimentally, with a
loaded machine; such tests can be started with the values below (default
values):
Set
PI P1 gain %
= 4%
Set
PI I1 gain %
= 4%
Set
PD P1 gain %
= 1%
Use the derivative component as a system “damping” element, by setting for