GD350A series high-performance multifunction VFD
-163-
Function
code
Name
Description
Default Modify
P04.04
V/F voltage point 1
of motor 1
The V/F curve is generally set according to the
load characteristics of the motor.
Note:
V1 < V2 < V3, f1 < f2 < f3. Too high
voltage for low frequency will cause motor
overheat or damage and cause VFD
overcurrent stall or overcurrent protection.
Output voltage
Output
frequency(Hz)
V1
V2
V3
f1
f2 f3
100.0%
b
f
b
V
Setting range of P04.03: 0.00Hz–P04.05
Setting range of P04.04: 0.0%–110.0% (of the
rated voltage of motor 1)
Setting range of P04.05: P04.03–P04.07
Setting range of P04.06: 0.0%–110.0% (of the
rated voltage of motor 1)
Setting range of P04.07: P04.05–P02.02
(rated frequency of AM 1) or P04.05–P02.16
(rated frequency of SM 1)
Setting range of P04.08: 0.0%–110.0% (of the
motor rated voltage of motor 1)
00.0%
○
P04.05
V/F frequency point
2 of motor 1
0.00Hz
○
P04.06
V/F voltage point 2
of motor 1
0.0%
○
P04.07
V/F frequency point
3 of motor 1
0.00Hz
○
P04.08
V/F voltage point 3
of motor 1
00.0%
○
P04.09
V/F slip
compensation gain
of motor 1
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=fb-n*p/60
Of which, f
b
is the rated frequency of motor 1,
corresponding to function code P02.02. n is
the rated rotating speed of motor 1,
corresponding to function code P02.03. p is
the number of pole pairs of the motor. 100.0%
0.0%
○
