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GD350A series high-performance multifunction VFD
-165-
Function
code
Name
Description
Default Modify
of motor 2
rated voltage of motor 2)
Setting range of P04.20: P04.18– P12.02
(rated frequency of AM 2) or P04.18– P12.16
(rated frequency of SM 2)
Setting range of P04.21: 0.0%–110.0% (of the
rated voltage of motor 2)
P04.20
V/F frequency point
3 of motor 2
0.00Hz
○
P04.21
V/F voltage point 3
of motor 2
00.0%
○
P04.22
V/F slip
compensation gain
of motor 2
The function code is used to compensate for
the motor rotating speed change caused by
load change in the space voltage vector mode,
and thus improve the rigidity of the mechanical
characteristics of the motor. You need to
calculate the rated slip frequency of the motor
as follows:
△
f=f
b
-n*p/60
Of which, f
b
is the rated frequency of the motor,
corresponding to function code P12.02. n is
the rated rotating speed of the motor,
corresponding to function code P12.03. p is
the number of pole pairs of the motor. 100.0%
corresponds to the rated slip frequency
△
f of
motor 2.
Setting range: 0.0–200.0%
0.0%
○
P04.23
Low-frequency
oscillation control
factor of motor 2
In space voltage vector control mode, the
motor, especially the large-power motor, may
experience current oscillation at certain
frequencies, which may cause unstable motor
running, or even VFD overcurrent. You can
adjust the two function codes properly to
eliminate such phenomenon.
Setting range of P04.23: 0–100
Setting range of P04.24: 0–100
Setting range of P04.25: 0.00Hz–P00.03
(Max. output frequency)
10
○
P04.24
High-frequency
oscillation control
factor of motor 2
10
○
P04.25
Oscillation control
threshold of motor 2
30.00Hz
○
P04.26 Energy-saving run
0: Disable
1: Automatic energy-saving run
In light-load state, the motor can adjust the
output voltage automatically to achieve energy
saving.
0
◎