INVT Goodrive350-19 Series Operation Manual page 162

Goodrive350-19 Series VFD for Crane
Function
Name
code
Motor parameter
P00.15
autotuning
Description
Mapping between
frequencies:
Model
0.4–11kW
15kW and
380V
higher
22–55kW
75kW and
660V
higher
Advantage of high carrier frequency: ideal
current waveform, little current harmonic wave
and motor noise.
Disadvantage of
increasing the switch loss, increasing VFD
temperature and the impact to the output
capacity. The VFD needs to derate on high
carrier frequency. At the same time, the leakage
and electrical magnetic
increase.
On the contrary, an extremely-low a carrier
frequency may cause unstable operation at low
frequency, decrease the torque, or even lead to
oscillation.
The carrier frequency has been properly set in
the factory before the VFD is delivered. In
general, you do not need to modify it.
When the frequency used exceeds the default
carrier frequency, the VFD needs to derate by
10% for each increase of 1k carrier frequency.
Setting range: 1.0–15.0kHz
0: No operation
1: Rotary autotuning.
Comprehensive motor parameter autotuning. It
is recommended to use rotating autotuning
when high control accuracy is needed.
2: Static autotuning
autotuning); static autotuning 1 is used in cases
where the motor cannot be disconnected from
-150-
models and
Default carrier
frequency
4kHz
1.5kHz
4kHz
2kHz
high carrier frequency:
interference
1 (comprehensive
Function parameters
Default Modify
carrier
will
0
◎