Lenze 9400 - Manual (Page 172)

5 Motor interface
5.5 Sensorless vector control (SLVC)
172
Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06
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5.5.3 Optimising the control mode
A manual optimisation of the controller settings may be required for very dynamic applications and
in the field weakening range.
Based on the typical controller settings which are listed in the chapter " Parameterising speed and
torque controller " in table [5-8] , first the field feedforward control and the speed controller are
optimised in the base speed range. Afterwards, the torque controller is optimised in the field
weakening range.
For optimisation, a suitable speed ramp must be selected for the drive and the acceleration must be
recorded, e.g. using the Oscilloscope function in »Engineer«. ( 579)
Short overview: Parameters for controller settings

Note!
The processes for optimising the controller settings described in the following
subchapters can only be executed while the drive is rotating and never when being at
standstill!
For all optimisation processes the magnetisation phase has to be completed!
Parameter Info Lenze setting
Value Unit
C00070 Speed controller gain 0.500 Nm/rpm
C00071 Speed controller reset time 24.0 ms
C00985 SLVC: Field controller gain 0.00
C00986 SLVC: Cross current controller gain 0.00
C00987 SLVC: Torque controller gain 0.5000 Hz/A
C00988 SLVC: Torque controller reset time 10.00 ms