Baumuller b maXX BM5800, Parameter Manual

Page: 494 / 816

Controllers
Parameter manual b maXX BM5800
Document No.: 5.16029.03 Baumüller Nürnberg GmbH
494
of 814
3.7
142.4
Tn field weakening controller
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 484.
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".
142.6
Max. total PWM voltage actual value
Display of the maximum total voltage available, that can be generated at an amplitude of
100% PWM (limit of the linear range) from the current DC link voltage
Z
130.3
–
. The max-
imum available total voltage at the motor is smaller due to the dead time voltages.
The field weakening controller requires this parameter.
The unit of the parameter is [V], line-to-line voltage effective.
142.7
PWM total voltage smoothed
Display of the actual required total voltage at PWM (see also
Z
142.6
–
and bit 2 of param-
eter
Z
142.1
–
). The time constant can be parameterized with
Z
142.10
–
.
The parameter is required by the field weakening controller as well as of the breakdown
torque controller.

The unit of the parameter is [V], line-to-line voltage effective.