Frequency Inverter ST600 Series High-Performance Multifunction VFD Function parameter list
-227-
0x00–0x31
Ones: Enable/disable
0: Disable
1: Enable
Tens: Analog port selection
0: Invalid
1: AI1
2: AI2
3: AI3
Analog filter time
of rigid tapping
Max. frequency of
rigid tapping
Corresponding
frequency of
analog zero drift of
rigid tapping
P23––Vector control of motor 2
Speed loop
proportional gain 1
P23.00–P23.05 fit for vector control mode only. Below
switch-over frequency 1 (P23.02), the speed loop PI
parameters are P23.00 and P23.01. Above switch-over
frequency 2 (P23.05), the speed loop PI parameters are
P23.03 and P23.04; in between them, the PI parameters
are obtained by linear variation between two groups of
parameters, as shown in the figure below.
PI parameters
Output frequency f
(P23.00,P23.01)
(P23.03,P23.04)
P23.02 P23.05
The speed loop dynamic response characteristics of
vector control can be adjusted by setting the proportional
coefficient and integral time of speed regulator. Increase
proportional gain or decrease integral time can
accelerate dynamic response of speed loop, however, if
the proportional gain is too large or integral time is too
Speed loop
integral time 1
Switch over low
point frequency
Speed loop
proportional gain 2
Speed loop
integral time 2
Switch over high
point frequency