Drive Configuration
Controller Tuning
Tuning criteria in
Nyquist
plot view (Figure 47):
f) The displayed complex curve of
H
o
(f)
must be outside of the 1.1 circle but as close to it as possi-
ble.
g) Following the complex curve
H
o
(f)
from low frequency to high frequency, the critical point [-1,
0j] must be located in the region to the left of the curve.
Rule of thumb for an initial setup of the current controller:
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Figure 46: Tuning criteria in Bode view for the current
controller.
Figure 47: Tuning criteria in Nyquist view for the current
controller.
