Adaption Of The Saturation - Baumuller b maXX BM3000 Operating Manual

4.7
Controllers

4.7.7.6 Adaption of the Saturation

Asynchronous motors
During the operation of the asynchronous motors with the encoder the current model is
used. This motor generates the flux actual value from the field current with the rotor time
constant and the main inductance (Lh). To consider the non-linearity of the main induc-
tance in the field weakening a Lh characteristic is used.
Id act
Figure 175:
with
The Lh characteristic can be entered manually. It can be detected in the idle state (see
chapter
The adaption of the flux actual value applies to the following:
Synchronous motors
The synchronous motors operate in the linear range of the torque current characteristic
until standstill current lo (or in the linear range of the Lq inductance i.e. Lq = constant).
526 Parameter manual b maXX BM3000
Document no.: 5.12001.07
of 820
Tr
Im act
Lh char.
Lh act
Flux actual value with encoder, current model with Lh characteristic
Flux act Actual value of the magnetic Flux in %
Tr Rotor time constant, in s
Lh act Magnetizing inductance, actual value, in H
Flux nom Magnetic flux nominal value in Vs
Id act Field current actual value in A
Im act Magnetizing current actual value in A
ZLh-characteristic–
m Standardization constant (1/Ks) of the speed controller output and the torque current
set value
m Torque monitoring ("Max. torque actual value" Z138.20–, "Torque display"
Z138.21– and "Torque limit symmetric " Z138.22–)
m Slip specification (ASM with encoder, refer to
frequency– on page 527)
m EMF feed forward
Flux nom
on page 149) as well.
Flux act
100
5000_0348_rev01.cdr
Z146.14–
ZTemperature adaption slip
Baumüller Nürnberg GmbH