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

Page: 291 / 387

Index
MENU MENU
MENU MENU
MENU
[Unit] Access Default Min/Max Format Reg.Mode Level Ipa
Parameter Name
Description
ARTDrive V2 series - Instruction Manual Chapter 6 Parameter • 291
APPL CFG / PID input
Dynamic clamp function
The Clamp value is active only till the error value becomes lower then the set Clamp
range. The function is useful, for example, during starting with dancer which is
completely sealed. In this case, the limiting of the maximum error limits the system
reaction speed thus allowing a dancer smooth positioning.
After positioning the dancer, the Clamp stops being active allowing a normal system
control.
APPL CFG / PI control
The function of this block is performed by three strictly combined different blocks. In
order to obtain a better working homogeneity, they have been grouped into the same
menu. The three Blocks are:
•
PI control block
By starting from the line speed reference it states the error sign for the PI Block. It
allows to invert the line direction without performing any operation, controls the
signals for the temporary gain increase at the starting and controls the Integral
section block.
•
PI Gain scheduler
It allows to adapt the PI section gains according, for example, to the coil Diameter.
•
PI section
It is the Block where the PI regulator is performed. The feature of this regulator is a
signal on the output oscillating between two values (Top and Bottom) which can be
set. The output is multiplied by the Feed Forward value.
In case of winders/unwinders, as stated before, the Top limit and Bot limit
(Clamp) values are set in order to let this output represent the Minimum_Ray/
Present_Ray ratio.
PID Mlt PI 3 src
PID Mlt PI sel out
PID Mlt PI sel 0
PID Mlt PI 1
Int PID Mlt PI 2
Int PID Mlt PI 3
Int PID Mlt PI 0
Int PID Mlt PI 1
PID MtlPI selmon
Figure O03-1: PI Control block