Danfoss VFD500 Series User Manual

VFD500 high performance vector control frequency inverter user manual Chapter 5 function code table
22 Group AC drive data and configuration
P22.00
Carrier/swithcing frequency
Depend on drives power #
≤7.5kW: 1kHz～12.0kHz
11kW～45kW: 1kHz～8kHz
≥55kw: 1kHz～4kHz
The carrier frequency can be reduced when it
came like following phenomenon:
1 The leakage current generated by the
inverter is large
2 The interference generated by the inverter
has an impact on peripheral devices
3 Long wiring distance between inverter and
motor
The carrier frequency can be increased
whenwhen it came like following
phenomenon:
1 The electromagnetic noise generated by the
motor is large
Depend
☆
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:
The factory default is optimal in most cases. Modification of this parameter is not recommended.
If the carrier frequency exceeds the factory default, the inverter must be derated because the
higher carrier frequency will cause more switching loss, higher temperature rise of inverter and
stronger electromagnetic interference.
If the carrier frequency is lower than the factory default, it is possible to cause less output torque of
motor and more harmonic current.
P22.01
Carrier frequency adjustment
Unit’digit：adjustment as per Rotation
0:No；1:Yes
Ten’ di git ：adjustment as per Temperature
0 no；1：yes
The inverter can automatically adjust the
carrier frequency according to its temperature.
This function can
reduce the possibility of overheat alarm of the
inverter.
00
★
P22.02
Low speed carrier frequency
1.0kHz～15.0kHz
Depend
☆
P22.03
High speed carrier frequency
1.0kHz～15.0kHz
Depend
☆
P22.04
Carrier frequency switching
point 1
0.00Hz～600.00HzWhen the carrier frequency
is adjusted according to the output frequency,
the carrier frequency set by P22.02 is used
when the output frequency is lower than this
set value.
10.00Hz
☆
P22.05
Carrier frequency switching
point2
0.00Hz～600.00Hz When the carrier
frequency is adjusted according to the output
frequency, the carrier frequency set by P22.03
is used when the output frequency is higher
than this set value.
50.00Hz
☆
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Danfoss VFD500 Series Specifications

General

Brand	Danfoss
Model	VFD500 Series
Category	DC Drives
Language	English