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Description of the Software Modules and Parameters
Parameter manual
b maXX
BM3000
Document no.: 5.12001.07
129
4
the Ke factor refers to the "cold" motor whereas the difference between "cold" and the
"warm" motor is about 5% in average.
If the motor has no electronic identification plate, the Ke factor must be entered. If no val-
ue for the Ke factor is available, the following procedure is possible:
m
Define the speed set value according to the nominal speed of the motor
m
Enable the drive and operate it no-load
m
By altering the Ke factor, bring the Iq controller output to approx. 0% (
(When changing the Ke factor
107.20
in the enabled state the used value in the con-
troller is smoothed to reduce the interferences in the controller. The temporal change
of the smoothing Ke factor can be monitored in the parameter
V/N
nom
.)
Refer to EMF pre-control (
on page 523) of the exact correlation between the
speed actual value and the EMF pre-control.
107.21
Max. current
Peak current of the motor. The value displayed is read from motors with an electronic
identification plate and is used for the injection procedure.
107.22
Peak torque
Peak torque of the motor. The value displayed is read from motors with an electronic iden-
tification plate and is for information only.
107.23
Friction moment
Display of the motor friction moment. The value displayed is read from motors with an
electronic identification plate and is for information only.
107.24
Attenuation factor
Display of the motor attenuation factor, Kd. The value displayed is read from motors with
an electronic identification plate and is for information only.
NOTE!
At the encoderless operation of the asynchronous motors the parameter
107.20
is not
important and has an informative meaning, only.