3.15 Parameters: Special Functions
3.15.1 14-** Special Functions
Parameter group for configuring special frequency converter functions.
3.15.2 14-0* Inverter Switching
Parameters for configuring the inverter switching.
14-00 Switching Pattern
Option: Function:
[0] * 60 AVM Select the switching pattern: 60° AVM or SFAVM.
[1] * SFAVM
NB!
The output frequency value of the frequency converter must never exceed 1/10 of the switching frequency. When the motor is running,
adjust the switching frequency in par. 4-11
Motor Speed Low Limit [RPM]
until the motor is as noiseless as possible. See also
par. 14-00
Switching Pattern
and the section
Special conditions
in the FC 300 Design Guide.
14-01 Switching Frequency
Select the inverter switching frequency. Changing the switching frequency can help to reduce acoustic noise from the motor. Default depend on power
size.
Option: Function:
[0] 1.0 kHz
[1] 1.5 kHz Default switching frequency for 355-1200 kW, 690V
[2] 2.0 kHz Default switching frequency for 250-800 kW, 400V and 37-315 kW, 690V
[3] 2.5 kHz
[4] 3.0 kHz Default switching frequency for 18.5-37 kW, 200V and 37-200 kW, 400V
[5] 3.5 kHz
[6] 4.0 kHz Default switching frequency for 5.5 – 15 kW, 200V and 11-30 kW, 400V
[7] * 5.0 kHz Default switching frequency for 0.25 – 3,7 k W, 200V and 0.37-7.5 kW, 400V
[8] 6.0 kHz
[9] 7.0 kHz
[10] 8.0 kHz
[11] 10.0 kHz
[12] 12.0 kHz
[13] 14.0 kHz
[14] 16.0 kHz
NB!
The output frequency value of the frequency converter must never exceed 1/10 of the switching frequency. When the motor is running,
adjust the switching frequency in par. 4-11
Motor Speed Low Limit [RPM]
until the motor is as noiseless as possible. See also
par. 14-00
Switching Pattern
and the section
Special conditions
in the VLT AutomationDrive FC 300 Design Guide.
3 Parameter descriptions FC 300 Programming Guide
194
MG.33.M8.02 - VLT
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is a registered Danfoss trademark
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