Kruger Ecowatt K320 Series Operation Manual page 244

Ecowatt Drive K320 series
®
Function
Name
code
Speed-loop
P23.01
integral time 1
Low-point
P23.02 frequency for
switching
Speed-loop
P23.03 proportional gain
Speed-loop
P23.04
integral time 2
High-point
P23.05 frequency for
switching
Below the switching frequency 1 (P23.02),
the speed-loop PI parameters are: P23.00
and P23.01. Above the switching frequency
2 (P23.05), the speed-loop PI parameters
are: P23.03 and P23.04. PI parameters are
obtained according to the linear change of
two groups
following figure:
2
PI parameters
(P23.00,P23.01)
The speed
characteristics of vector control can be
adjusted
coefficient and integral time of speed
regulator. Increasing proportional gain or
reducing integral time can accelerate
dynamic response of speed loop; however,
if the proportional gain is too large or
integral
oscillation and overshoot may occur; if
proportional gain is too small, stable
oscillation or speed offset may occur.
PI parameters have a close relationship
with the inertia of the system. Adjust PI
parameters depending on different loads
to meet various demands.
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)
Description
of parameters.
(P23.03,P23.04)
Output frequency f
P23.02 P23.05
loop dynamic
by setting the
time is too small,
-235-
Function parameter list
Default Modify
0.200s
5.00Hz
See the
20.0
0.200s
response
proportional
system
10.00Hz
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