4.14 Parameter Group 14-** Special Functions
4.14.1 14-0* Inverter Switching
Parameter 14-00 Switching Pattern
Table 475: Parameter 14-00 Switching Pattern
14-00 Switching Pattern
Default Value: [1] SFAVM
Parameter Type: Option
Setup: All set-ups
Conversion Index: -
Data Type: Uint8
Change during operation: True
Select the switching pattern: 60° AVM or SFAVM.
N O T I C E
The drive may adjust the switching pattern automatically to avoid a trip.
Option
Name
Description
[0]
60 AVM
[1]*
SFAVM
Parameter 14-01 Switching Frequency
Table 476: Parameter 14-01 Switching Frequency
14-01 Switching Frequency
Default Value: Size related
Parameter Type: Option
Setup: All set-ups
Conversion Index: -
Data Type: Uint8
Change during operation: True
Select the drive switching frequency. Changing the switching frequency reduces acoustic noise from the motor. Default values de-
pend on power size.
N O T I C E
The output frequency value of the drive must never exceed 10% of the switching frequency. When the motor is running, adjust
the switching frequency in
parameter 14-01 Switching Frequency
to minimize motor noise.
N O T I C E
To avoid a trip, the drive can adjust the switching frequency automatically.
Option
Name
Description
[0]
1.0 kHz
[1]
1.5 kHz
Default switching frequency for 355–1200 kW [500–1600 hp], 690 V.
[2]
2.0 kHz
Default switching frequency for 250–800 kW [350–1075 hp], 400 V, and 37–315 kW [50–450 hp], 690 V.
[3]
2.5 kHz
[4]
3.0 kHz
Default switching frequency for 18.5–37 kW [25–50 hp], 200 V, and 37–200 kW [50–300 hp], 400 V.
[5]
3.5 kHz
[6]
4.0 kHz
Default switching frequency for 5.5–15 kW [7.5–20 hp], 200 V, and 11–30 kW [15-40], 400 V.
AU373327181955en-000101 / 130R1208
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Parameter Descriptions
VLT® AutomationDrive EZ FC 321
Programming Guide