2 optimising the speed controller, 5motor interface – Lenze 9400 User Manual
Page 174
5
Motor interface
5.5
Sensorless vector control (SLVC)
174
Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06
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5.5.3.2
Optimising the speed controller
To optimise the speed controller, the drive must be accelerated in the base speed range with slow
setpoint ramps (e.g. acceleration time = 5 s) to speed values below the rated speed and then
decelerated again.
Gain optimisation
The proportional gain Vp is selected under
:
1. Increase
until the drive oscillates slightly (see picture
).
2. Reduce
until the drive runs stable again (see picture
).
3. Reduce
to approx. half the value.
Optimise the reset time
The reset time Tn is selected under
:
1. Reduce
until the drive oscillates slightly.
2. Increase
until the drive is stable again.
3. Increase
to approx. double the value.