BONFIGLIOLI Agile Operating Instructions Manual page 226

446 Derivative time (D)
If the control behavior of the PI controller (or P controller) is too slow, a faster control can be
achieved by activating and adjusting the differential part (
ferential part is activated, the control circuit has a higher tendency toward vibration. For this reason,
the differential part should be activated and changed carefully.
By default, the differential part is set to
for 446 cause fast control, but amplify interferences.
Derivative time
The amplification (P) is included in the calculation of the derivative time (D), see figure PID controller.
Parameters
No. Description
446 Derivative time
442 Maximum Frequency
443 Minimum Frequency
Parameters
Maximum Frequency
controller. In this way, you can also define if the PID controller is to operate the drive in one direction
only or if both directions of rotations are to be possible.
Parameters
No. Description
442 Maximum Frequency
443 Minimum Frequency
If the PID controller is to operate the drive in both directions, (
443< 0 Hz), Parameter
cy
If
Maximum Frequency
example
20.00 Hz with positive
using
Maximum Frequency
Minimum Frequency
Setting the Start-Left-Control will result in using
wise rotation (positive control deviation) and
wise rotation (negative control deviation).
618 Backlash
With parameter
Backlash
this way, frequent post-controlling and jerking of the drive can be avoided.
Requirement:
Stator Frequency
Parameters
No. Description
618 Backlash
616 Backlash Motor Power off
In different applications it could be requested to switch off the power stage with a small control devia-
tion and low output frequency. With parameter
set up.
Agile
Operating Instructions
Derivative time
Min.
0 ms
442 and
Minimum Frequency
Min.
0 Hz
-999.99 Hz
Minimum Frequency
442 and
442 = 30.00 Hz and
Maximum Frequency
Amplification
442 for Clockwise rotation (positive control deviation) and
443 for Anticlockwise rotation (negative control deviation).
618, you can set a range in which a control deviation is not processed. In
210 <
Switch-Off Threshold Stop Function
Min.
0%
Backlash Motor Power off
226
06/2013
Derivative time
446 = 0 ms, i.e. it is deactivated. High values
Setting
Max. Fact. sett.
1000 ms
443 define the working range of the
Setting
Max. Fact. sett.
999.99 Hz 50.00 Hz
0 Hz -50.00 Hz
418 should be set to 0 Hz.
443 are set asymmetric (in
Minimum Frequency
Minimum Frequency
444), setting the Start-Right-Control will result in
Minimum Frequency
Maximum Frequency
Setting
Max. Fact. sett.
30.00%
Parameter descriptions
446). However, if the dif-
0 ms
Minimum Frequen-
443 = -
443 for Clock-
442 for Anticlock-
637.
0%
616 this behavior can be
Control functions