4-186
Torque
Speed
Decrease
18-01
Decrease
18-01
Increase
18-01
Increase
18-01
Figure 4.3.103 18-01 Impact on torque speed curve
(3) FOC(Flux Orient Control) delay time (18-05)
. In the SLV mode, the slip compensation of the magnetic flux depends on the torque
current and excitation current.
. If the motor bears the load exceeding 100% at the motor rated frequency, the voltage
of the pole and the resistance sharply drops, which might cause the inverter output
saturation and the current jitter. The magnetic flux slip compensation will decouple
the torque current and the excitation current, then the current jitter will be resolved.
.18-05Set delay time of the magnetic flux slip
.In the slow or steady operation, 18-05 can be increased. For the fast operation, you
have to adjust 18-06.
(4) Slip compensation gain 18-06 setting
.If the motor is jittering at the rated frequency and full load, the set value of 18-06 will
gradually reduce to zero for jitter reduction.
19– Wobble Frequency function group
19- 00
Center frequency of wobble frequency
Range
【
5.00~100.00 】%
19- 01
Amplitude of wobble frequency
Range
【0.1~20.0】%
19- 02
Jump frequency of wobble frequency
Range
【0.0~50.0】%
19- 03
Jump time of wobble frequency
Range
【0~50】mSec
19- 04
Wobble frequency cycle
Range
【0.0~1000.0】Sec
19- 05
Wobble frequency ratio
Range
【0.1~10.0】mSec
19- 06
Upper offset amplitude of wobble frequency
Range
【0.0~20.0】%
19- 07
Lower offset amplitude of wobble frequency
Range
【0.0~20.0】%
.Wobble operation is only used in V/F and V/F+PG control mode. To compensate the
fast frequency in the inertia system, jump can be included.
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