Mini Maestro User Guide 25
Issue Number: 5 www.controltechniques.com
Figure 4-5 Ideal waveform
Figure 4-6 Waveform resulting from excessive derivative gain
If the derivative gain is set at an excessive value, current noise can occur. This causes
unnecessary heating of the drive and motor, and can induce I
2
t current limit trips.
It may be necessary to adjust repetitively the PROPORTIONAL and DERIVATIVE
potentiometers.
If the drive has instability problems after adjustment and when it is connected to a
position controller, re-adjust the proportional and derivative gains.
NOTE
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