Baumuller b maXX BM2500, Operating Manual

Page: 503 / 822

Description of the Software Modules and Parameters
Parameter manual b maXX BM3000
Document no.: 5.12001.07
503
of 820
4
Furthermore, the field weakening factor of the parameter
Z
142.5
–
"Minimum field weak
factor" is limited:
Field weakening factor [
Z
142.2
–
]

Minimum field weak factor [
Z
142.5
–
].
Further details see chapter
Z
Field weakening controller
–
from page 494.
142.3
P-Gain of field weakening controller
Proportional gain of field weakening controller.
With a SM, the field weakening controller can be set more finely than with an ASM, as no
delay in the reduction of the field due to the rotor time constant occurs.
A P-gain of 0 switches off the field weakening controller.
142.4
Field weakening controller integral action time
Reset time of the field weakening controller.
At value 0 the integral part is set to 0 and the field weakening controller works without in-
tegral part.
142.5
Minimum field weak factor
The parameter is without unit and serves as a limit of the field weakening factor
Z
142.2
–
The range of values extends from 0 to 1.
Field weakening factor [
Z
142.2
–
]

Minimum field weak factor [
>
142.5
<
].
Of importance only if the field weakening type at the voltage limit is set (
Z
142.1
–
bit 0 = 0).
See chapter
Z
Field weakening controller
–
from page 494.
Considering the extreme cases:
Minimum field weak factor = 0 For SM: The parameterized field current

preset value
Z
19.9
–
can be reached.
For ASM: The flux set value
Z
146.13
–
can

be reduced to 0%
Minimum field weak factor > 0 For SM the parameterized field current

preset value
Z
19.9
–
can not be reached.
For ASM the flux set value in % can only be

reduced to 100 * "Minimum field weak

factor".