Breakdown Torque - Baumuller b maXX BM3000 Operating Manual

4.7
Controllers

4.7.4.1 Breakdown torque

Two limits of the breakdown torque are possible:
Figure 165: ProDrive Breakdown torque
Breakdown Torque
There is a speed-dependent torque current limit I
manded Ud voltage can be limited to a defined limit U
Thereby, the inductance Lq accords to the inductance of the motor control: Inductance of
measuring values (Z123.7–) or of motor data
cording to the setting of bit 3 in Z123.10–.
The Ud voltage should not be more than the phase voltage U
ommended to limit the voltage to the 1/2-fold U
498 Parameter manual b maXX BM3000
Document no.: 5.12001.07
of 820
m Breakdown torque limit: A controlled procedure limiting the maximum torque current
in dependence of the voltage and the speed.
m Breakdown torque controller: A controlled procedure readjusting the maximum
torque current on the basic of the available voltage.
U
d,Max
I = -----------------

sq,K,limit
el
1

------ - U
U =
d,Max
2
sq,K,limit

L
q
(Z107.34–
ph,Max
ph,Max
in the BM3300 so that the de-
as follows:
d,Max
Z107.30– + Z107.32–) ac-
and
. However, it is rec-
ph,Max
.
Baumüller Nürnberg GmbH