INVT GD310-011P-4-UL, Operation Manual

Page: 52 / 269

GD310-UL series VFD Function parameter
-44-
Function
code
Name Description
Default
value
Modify
2: Forbid to run in reverse direction: It can be used in
some special cases if the reverse running is
disabled.
P00.14
Carrier
frequency
setting
Carrier
frequency
Electro magnetic
noise
Noise and leakage
current
Heating
eliminating
High
Low High
Low High
Low
The relationship table of the motor type and carrier
frequency:
Model
Factory value of
carrier frequency
220V 0.75
–55kW
2kHz
460V
G-type: 1.5
–11kW
8kHz
P-type: 5.5
–15kW
4kHz
G-type: 15
–55kW
4kHz
P-type: 18.5
–75kW
2kHz
G-type: 75
–500kW
2kHz
P-type: 90
–500kW
2kHz
575V
G-type: 22
–55kW
4kHz
G-type: 75
–110kW
2kHz
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.
Depend
on model
○