Catch On Fly - Baumuller b maXX BM3000 Operating Manual

4.8
Operating Modes
Hints to achieve best possible performance
1 PWM switching frequencies recommended: 2 kHz and 4 kHz
2 The auto-tuning of the current regulator and the identification of the magnetizing curve
3 Parameter Dead time compensation
4 Parameter Flux estimator gain
5 Parameter Minimum speed threshold OL
6 Parameter Minimum speed delay OL
7 Auto-tuning of the speed regulator (closed loop analysis) is not possible at open loop
8 Adjust the parameter Slip frequency warm
9 At enabling of the regulator the field current follows a ramp to build the flux. With pa-
Motor parameters needed for commissioning
Nominal voltage
Nominal current
Nominal speed
Nominal frequency
Pole pairs
Magnetic current
Slip frequency warm

4.8.11.2 Catch on Fly

Catch on Fly for openloop asynchronous motors allows to engage the motor to an already
rotating axis respectively load.
656 Parameter manual b maXX BM3000
Document no.: 5.12001.07
of 820
(Lh characteristic) must be executed to measure optimal parameters for motor model
and for compensation of the power unit nonlinearity.
in the range 100% - 90% to reduce the speed ripple and to improve starting perfor-
mance.
achieve smooth operation at low speed and to improve starting performance.
with frequency bellow 1 Hz is required or if smooth starting is needed. But the reliability
and repeatability of starting may be affected.
mation and prevent the loss of motor control at stand still. 
If the drive does not follow a deceleration ramp, e.g. drive in current limit, the parameter
may be increased to allow speed control down to zero.
control. The Ks Scaling factor
equitation:
o
K
---- - 360
t 
---------- -
K =
s
J 2
slip at rated load to decrease speed estimation error.
rameter Magnetization time
Z107.8–
Z107.9–
Z107.7–
Z107.13–
Z107.19–
Z107.14–
Z107.16–
Z47.50–
may be decreased in small steps of 1%
Z163.1–
may be increased in range 250 - 750 to
Z161.1–
can be decreased, if the operation
Z161.2–
may be decreased to lock the flux esti-
Z18.40–
must be calculated accordingly to the following
Z107.16–
Z160.1–
the length of the ramp can be set.
which corresponds to rated motor
Baumüller Nürnberg GmbH