User Manual of A90 Series Inverter
130
Table 7-2 Relationship between Rated Power and Carrier Frequency Setting of Inverter
Inverter power
Pe
Pe≤4kW 5.5kW~7.5kW 11kW~45kW 55kW~90kW 110kW~560kW
Rated carrier
frequency
4.0kHz
2.0kHz
Maximum
allowable
carrier
frequency
16.0kHz
10.0kHz
8.0kHz
4.0kHz
3.0kHz
Function code
Function code
name
Parameter description
Unit
Default
setting
Attribute
F00.24
Automatic
adjustment of
carrier
frequency
0: Invalid
1: valid 1
2: valid 2
1
○
F00.24=0: invalid
The carrier frequency is dependent on F00.23, but limited by the allowable maximum
carrier frequency. It will not change during operation.
F00.24=1: valid 1
The carrier frequency is affected by the inverter temperature and load based on the
F00.23 setting. If the inverter temperature is too high or the load is too heavy, the carrier
frequency will be limited. When the set carrier frequency F00.23 is greater than the limit,
the carrier frequency of the inverter will be the limit during operation.
F00.24=2: valid 2
The carrier frequency is auto-tuned on the basis of the F00.23 setting.
Function
code
Function code name
Parameter description
Unit
Default
setting
Attribute
F00.25
Noise suppression of
carrier frequency
0: Invalid
1: valid
0
○
F00.27
Noise suppression
intensity
10~150
Hz
100
●
When the noise suppression function is enabled (F00.25=1), the motor noise can be
suppressed to a certain extent.
