INVT Goodrive270 Series Operation Manual page 163

Goodrive270 series VFD for fan and pump
Function
Name
code
Motor parameter
P00.15
autotuning
AVR function
P00.16
selection
Description
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: Dynamic autotuning 1; comprehensive motor
parameter autotuning. It is recommended to use
rotating autotuning when high control accuracy
is required.
2: Complete parameter static autotuning;
complete parameter static autotuning is used in
cases where the motor cannot be disconnected
from load.
3: Partial parameter static autotuning 1; when
the present motor is motor 1, only P02.06,
P02.07, and P02.08 are autotuned; when the
present motor is motor 2, only P12.06, P12.07,
and P12.08 are autotuned.
4: Dynamic autotuning 2, which is similar to
rotary autotuning 1 but only valid for AMs
5: Partial parameter static autotuning 2, which is
valid only for AMs.
0: Invalid
1: Valid during the whole procedure
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Function parameter list
Default Modify
◎
0
○
1