BONFIGLIOLI ACTIVE Cube ACU 401-18 User Manual

clockwise
anticlockwise
generator
motor
motor generator
n
clockwise
anticlockwise
generator
motor
motor
generator
n
Operation mode 2
Current limit 728
Current limit generator op.
729
The properties of the speed controller can be adapted for adjustment and optimiza-
tion of the controller. The amplification and integral time of the speed controller are
to be set via the parameters Amplification 1 721, Integral time 1 722. For the sec-
ond speed range, the parameters can be set via the parameters
Amplification 2 723
,
Integral time 2 724. The distinction between the speed ranges is done by the pa-
rameter
Speed control switch-over limit 738. The parameters Amplification 1 721
and Integral time 1 722 are taken into account with the parameter
Speed control
switch-over limit. If parameter Speed control switch-over limit 738
is set to a value
higher than 0.00 Hz, parameters Amplification 1 721, Integral time 1 722
are active
below the limit and parameters Amplification 2 723, Integral time 2 724
are active
above the limit.
The control deviation can be filtered with the filter time constant 754
if necessary.
Therefore the operation with static control deviation with occasional undesired devia-
tions can be stabilized, while at the same time the
dynamic behavior in load change
operation (speed change or changing torque demand) suffers.
The parameterized amplification at the current operating point can additionally be as-
sessed via the parameter
Backlash damping 748 depending on the control deviat
ion.
In particular the small signal behavior in applications with a gearbox can be im
proved
by a value higher than zero percent.
Parameter Backlash damping 748 is available depending on the type of unit.
Parameter Settings
No.
Description
Min.
Max.
Fact. sett.
721
Amplification 1
0.00
200.00
-
1)
722 Integral time 1 0 ms 60000 ms -
1)
723 Amplification 2 0.00 200.00 -
1)
724 Integral time 2 0 ms 60000 ms -
1)
754
Filter time constant
0 ms
128 ms
0 ms
738
Speed control switch-over limit
0.00 Hz
999.99 Hz
55.00 Hz
748 Backlash damping 0 % 300 % 100 %
1)
The default setting is relative to the recommended machine data for the amplifica-
tion and integral time. This enables a first function test in a large number of appli-
cations. Switch-
over between settings 1 and 2 for the current frequency range is
done by the software according to the selected limit value.
06/13 Operating Instructions ACU 233

BONFIGLIOLI ACTIVE Cube ACU 401-18 Specifications

General

Brand	BONFIGLIOLI
Model	ACTIVE Cube ACU 401-18
Category	Inverter
Language	English