Parameter Overview Of The Controller Adaptations; Description Of The Controller Adaptations Parameters - Baumuller b maXX BM3000 Operating Manual

Description of the Software Modules and Parameters
Dead time voltages
Dead time voltages are non-linear occurrences in the output voltage of the converter. This
can have several causes such as the locking time when switching over the IGBTs, differ-
ences of blanking times of the IGBTs and diodes and the threshold voltages of the IGBTs
and diodes. These non-linear voltages invalidate the voltage output of the PWM modula-
tor. They are considerably low compared to the nominal motor voltage. However, the en-
coderless procedures and the accuracy of power displays that are based on the motor
voltage - in particular at lower speeds - can be effected.

4.7.7.1 Parameter Overview of the Controller Adaptations

Functional blocks:
Functional blocks:
Number Name
138.23 Kt correction factor
155.1 Mode
155.2 State

4.7.7.2 Description of the Controller Adaptations parameters

138.23
Kt correction factor
The factor (Kt
torque-generating current and the displayed torque as well as the entered torque
("Torque display" Z138.21–, "Max. torque actual value" Z138.20–, "Torque limit symmet-
ric" Z138.22–).
The factor effects the controller only if it reaches the Torque limit symmetric Z138.22–;
the present values of Ks (or 1/Ks) and Kt are not effected.
The exact collaboration between the torque current and the torque is shown in
torque monitoring–
FbStromBegr [138] 
FbReglerAdaption [155]
Type Min Max
FLOAT 0 100
UINT 0 0xFFFF
UINT 0 0xFFFF
) can be specified by this parameter which effects the dependence of the
corr
on page 524 (ZFig.
Parameter manual b maXX BM3000
Default Value Unit
1
0
0
174–).
Document no.: 5.12001.07
4
Factor
1:1 X
1:1 X
1:1 X
ZAdaption
521
of 820