ACD320 user manual
Parameter Description
Model
Carrier
frequency
Max carr ier
frequency (KHz)
Min carrier
frequency (KHz)
Factory setting
(KHz)
G: 0.4k W～11K W
15
1
6
L: 0.75kW～15 KW
G: 15kW～55 K W
8
L: 18.5kW～75KW
1
3
G: 75kW～300KW
8
L: 90kW～315KW
1
1.5
This function is mainly used to improve the motor operating noise and inverter interference
to external. The advantages of using high carrier frequency: relatively ideal current wave shape,
less harmonic current wave and low motor noise;
The disadvantages of using high carrier frequency: increased switch loss and inverter
temperature rises, affecting inverter output capacity so that it should be operated at derating
under high carrier frequency conditions; in the mean time, inverter leakage current and its
electromagnetic interference to external are increased.
The situations of using low carrier frequency is on the contrary. Too low carrier frequency
can cause operation unstable, torque reduced and even oscillation at low frequency.
When inverter is factory released, its carrier frequency has been set properly. Generally the
user does not need to modify this parameter.
Function Code
Name
Setting Range
Default
Value
0: Nooperation
Functional parameters
F0.12
1: Restore default value
0
restoration
2: Delete failure records
1: The inverter restores all parameters to their default value.
2: The inverter deletes recent failure records.
After the chosen function operation is completed, this function code is automatically
restored to 0.
Function Code
Name
Setting Range
Default
Value
- 60-
