BONFIGLIOLI Act 201 Operating Instructions Manual page 178

The properties of the speed controller can be adapted for adjustment and optimization
of the controller. The amplification and integral time of the speed controller are to be
set via parameters
speed range, parameters
distinction between the speed ranges is done by the value selected via parameter
Speed Control Switch-Over Limit
tegral time 1
Control Switch-Over Limit
is set to a value higher than 0.00 Hz, parameters
1
724 are active above the limit.
The parameterized amplification at the current operating point can additionally be
assessed via the parameter
tion. In particular the small signal behavior in applications with a gearbox can be im-
proved by a value higher than zero percent.
The parameter
No.
721 Amplification 1
722 Integral Time 1
723 Amplification 2
724 Integral Time 2
738 Speed Control Switch-Over Limit
748 Backlash Damping
1)
The optimization of the speed controller can be done with the help of a reference
value step-change. The amount of the step-change is defined by the set ramp or limi-
tation. The optimization of the PI controller should be done at the maximum admissi-
ble reference value change rate. First, the amplification is increased until the actual
value overshoots distinctly during the control process. This is indicated by a strong
oscillation of the speed and by the running noises. In the next step, reduce the ampli-
fication slightly (1/2 ...3/4 etc.). Then reduce the integral time (larger I component)
until the actual value overshoots only slightly in the control process.
If necessary, check the speed control settings in the case of dynamic operations (ac-
celeration, deceleration). The frequency at which a switch-over of the controller pa-
rameters is effected can be set via parameter
176
176
anticlockwise
generator
motor
generator
Current limit
728
Current limit generator op.
Amplification 1
722 are taken into account in the case of the default parameter
722 are active below the limit and parameters
Backlash damping
Parameter
Description
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. The distinction of the parameter settings 1 or 2 for the current frequency
range is done by the software according to the selected limit value.
Operating Instructions ACTIVE
Operating Instructions ACTIVE
Operation mode 2
clockwise
anticlockwise
motor
n
729
Integral Time 1
721 and
Amplification 2 Integral Time 2
723,
738. The parameters
Speed Control Switch-Over Limit
738. If parameter
Backlash Damping
748 depending on the control devia-
748 is available depending on the device type.
Min.
0 ms
0 ms
0.00 Hz
Speed Control Switch-Over Limit
clockwise
generator
motor
motor generator
722. For the second
724 can be set. The
Amplification 1
Amplification 1
721,
Amplification 2 Integral Time 2
723,
Settings
Max.
0.00 200.00
60000 ms
0.00 200.00
60000 ms
999.99 Hz
0 % 300 %
n
In-
721 and
Speed
738
Integral Time
Fact. sett.
1)
-
1)
-
1)
-
1)
-
55.00 Hz
100 %
738.
06/07
06/07