Detailed Function Description
48
Carrier frequency
Model
Highest Carrier
Frequency( kHz )
Lowest Carrier
Frequency( kHz )
Factory
Setting
( kHz )
G Model: 1.5kW~11kW 16 1 8
G Model: 15kW~55kW 8 1 4
G Model: 75kW~630kW 6 1 2
Carrier frequency will affect the noise of motor and the EMI of inverter.
If the carrier frequency is increased, it will cause better current wave, less harmonic
current and lower noise of motor.
Notice:
z The factory setting is optimal in most cases. Modification of this parameter
is not recommended.
z If the carrier frequency exceeds the factory setting, the inverter must be
derated because the higher carrier frequency will cause more switching loss,
higher temperature rise of inverter and stronger electromagnetic
interference.
z If the carrier frequency is lower than the factory setting, it is possible to
cause less output torque of motor and more harmonic current.
Function
Code
Name Description
Setting
Range
Factory
Setting
P0.15 PWM mode
0: Fixed
1: Random
0~1
0
0: Fixed: The noise frequency of motor is fixed.
1: Random: This mode can restrain the noise of motor effectively, but may increase the
harmonic of motor.
Function
Code
Name Description
Setting
Range
Factory
Setting
P0.16
Carrier frequency adjust
based on temperature
0: Disabled
1: Enabled
0~1
0
0: Disabled: Carrier frequency is fixed.
1: Enabled: Carrier frequency will be adjusted based on internal temperature of the
inverter. The higher the temperature, the lower the carrier frequency.
Function
Code
Name Description
Setting
Range
Factory
Setting
P0.17
Motor parameters
autotuning
0: No action
1: Rotation autotuning
2: Static autotuning
0~2 0
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