INVT Goodrive350 Series Operation Manual page 234

Goodrive350 series high-performance multifunction VFD
Function
Name
code
Speed loop
P23.06
output filter
Slip
compensation
P23.07 coefficient of
vector control
(motoring)
Slip
compensation
P23.08 coefficient of
vector control
(generating)
Current loop
P23.09 proportional
coefficient P
Current loop
P23.10 integral
coefficient I
Description
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 small, system
oscillation and large overshoot may occur; if
proportional gain is too small, stable oscillation or
speed offset may occur.
Speed loop PI parameter is closely related to the
system inertia, you should make adjustment
according to different load characteristics based
on the default PI parameter to fulfill different
needs.
Setting range of P23.00: 0.0–200.0
Setting range of P23.01: 0.000–10.000s
Setting range of P23.02: 0.00Hz–P23.05
Setting range of P23.03: 0.0–200.0
Setting range of P23.04: 0.000–10.000s
Setting range of P23.05: P23.02–P00.03 (Max.
output frequency)
0–8 (corresponds to 0–2^8/10ms)
Slip compensation coefficient is used to adjust the
slip frequency of vector control to improve system
speed control precision. You can effectively control
the static error of speed by adjusting this
parameter properly.
Setting range: 50–200%
Note:
1. These two parameters are used to adjust PI
parameters of current loop; it affects dynamic
response speed and control precision of the
system directly. The default value needs no
adjustment under common conditions;
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Function parameter list
Default
Modify
value
○
0
○
100%
○
100%
○
1000
○
1000