Configuration
Parameter manual
b maXX
BM5800
Document No.: 5.16029.03
Baumüller Nürnberg GmbH
188
3.4
123.15
Dead time compensation table
Table of the current-dependent correction of the voltage setting based on the measured
IGBT dead time.
The table is displayed graphical in ProDrive on page "Autotuning current controller" by
clicking on button "Dead time compensation".
123.35
Result Rr
This parameter shows the identified rotor resistance of an asynchronous motor.
NOTE!
If the correction table (dead time) is measured during the adaption of the dead time
compensation according to the PWM frequency is active (
bit 3 = 1), the ef-
fective voltage of the dead time compensation is corrected according to the effective
PWM frequency. Therefore, a dead time measurement after a change of the PWM
frequency is not necessary anymore. However, the best results are generally
reached if the used PWM frequency corresponds to the PWM frequency at the mo-
ment of the dead time measurement.
NOTE!
The dead time measurement must be repeated, if the IGBT dead time (
) was
changed.