INVT Goodrive 310-UL Series Operation Manual page 52

GD310-UL series VFD
Function
Name
code
Carrier
P00.14 frequency
setting
2: Forbid to run in reverse direction: It can be used in
some special cases if the reverse running is
disabled.
Carrier
Electro magnetic
frequency noise
The relationship table of the motor type and carrier
frequency:
Model
220V 0.75–55kW
G-type: 1.5–11kW
P-type: 5.5–15kW
G-type: 15–55kW
460V
P-type: 18.5–75kW
G-type: 75–500kW
P-type: 90–500kW
G-type: 22–55kW
575V
G-type: 75–110kW
The advantage of high carrier frequency: ideal
current waveform, little current harmonic wave and
motor noise.
The disadvantage of high carrier frequency:
increasing the switch loss, increasing VFD
temperature and the impact to the output capacity.
The VFD needs to derate on high carrier frequency.
At the same time, the leakage and electrical
magnetic interference will increase.
Applying low carrier frequency is contrary to the
above, too low carrier frequency will cause unstable
running, torque decreasing and surge.
The manufacturer has set a reasonable carrier
frequency when the VFD is in factory. In general,
users do not need to change the parameter.
Description
Noise and leakage Heating
current
eliminating
High Low
Low High
Factory value of
carrier frequency
2kHz
8kHz
4kHz
4kHz
2kHz
2kHz
2kHz
4kHz
2kHz
-44-
Function parameter
Default
value
Low
High
Depend
on model
Modify
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