INVT Goodrive350 Series Operation Manual page 146

Goodrive350 IP55 High-ingress Protection Series VFD
Function
Name
code
Perform motor
P00.15 parameter
autotuning.
Description
frequencies is as follows:
VFD model
004G/5R5P–011G/015P 8kHz
380V 015G/018P–055G/075P 4kHz
075G/090P and higher
Advantage of high carrier frequency: ideal
current waveform, little current harmonic wave
and motor noise.
Disadvantage of high carrier frequency:
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 interference will
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 1
Comprehensive motor parameter autotuning. It
is recommended to use rotating autotuning
when high control accuracy is required.
2: Static autotuning 1 (comprehensive
autotuning)
Motor parameter autotuning. It is applicable in
scenarios where the motor cannot be
disconnected from load.
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Function parameter list
Default Modify
Default
carrier
frequency
2kHz
0
◎