Baumuller b maXX BM3000 User Manual

Description of the Software Modules and Parameters
Parameter manual b maXX BM3000
Document no.: 5.12001.07
501
of 820
4
rent specification value can be set at half the motor-nominal current (if higher values
are required contact the motor manufacturer).

2 If the value of the Usd voltage Z47.21– is above the (1/2)-fold U
ph,Max
it is recom-
mended to activate the breakdown torque limit (Z138.1– bit 2 to 1) by the standardized
setting of the breakdown torque factor Z138.17–. If the Usd voltage is not limited to the
assumed values U
d,Max
it is recommended to activate the adaption for the breakdown
torque limit (
Z138.1– bit 5 to 1). If the Usd voltage is limited and the issue with the con-
trolled current remains then the field weakening should be controlled as described in
point 1 otherwise carry on with point 3.

3 If the d-,q-currents were adjusted the breakdown torque factor at the SM can be grad-
ually increased to receive more torque current. However, this leads to a higher field
current amplitude (lower power factor). Thereby, should be checked if the field weak
-
ening controller is operating sufficiently and if the field current amplitude is adequate
(refer to point 1).
Breakdown torque controller
At the controlled processing the maximum torque current is limited by a PI controller and
provides the maximum possible torque current to the available voltage. Because the max
-
imum torque current is adjusted this process is independent to the set motor parameters.
The breakdown torque controller is activated at bit
4 of parameter Z138.1– and at the
same time deactivates the breakdown torque parameters. The input values are the same
as at the field weakening controller except that there is an own factor (
Z142.21–) for the
breakdown torque control there is an own factor. As soon as the required voltage increas-
es the set voltage the torque current is limited by the PI controller and the controller is
immediately initialized to the present torque current. It is recommended to parameterize
this factor higher than the field weakening limit factor (
Z142.15–), so that the field weak-
ening controller always starts at first. The higher the present field current the lower the
present Uq voltage and due to this a higher torque can is available and a higher torque
can be reached.
4.7.4.2 Parameter overview
Functional block: FbFieldweak [142]
Number Name Type Min Max Default Value Unit Factor
Read only Storage DS Support Cyclic Write
142.1 Field weakening mode UINT 0 0xFFFF 0 1:1 X
142.2 Field weakening faktor FLOAT 0 1 1 1:1 X
142.3 P-Gain field weakening con-
troller
FLOAT 0 1000 0.002 1/V 1:1 X
142.4 Field weakening controller
integral action time
FLOAT 0 10000 3000 ms 1:1 X
142.5 Minimum field weak factor FLOAT 0 1 0 1:1 X
142.6 Maximum output voltage
RMS
FLOAT 0 1000 0 V 1:1 X

Baumuller b maXX BM3000 Specifications

General

Brand	Baumuller
Model	b maXX BM3000
Category	Measuring Instruments
Language	English