Sourcetronic ST600 - Page 235

Frequency Inverter ST600 Series High-Performance Multifunction VFD Function parameter list
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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, users 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)
P23.06
Speed loop output
filter
0–8 (corresponds to 0–2^8/10ms)
0
○
P23.07
Slip compensation
coefficient of
vector control
(motoring)
Slip compensation coefficient is used to adjust the slip
frequency of vector control to improve system speed
control precision. Users can effectively control the static
error of speed by adjusting this parameter properly.
Setting range: 50–200%
100%
○
P23.08
Slip compensation
coefficient of
vector control
(generating)
100%
○
P23.09
Current loop
proportional
coefficient P
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;
2. Fit for SVC mode 0 (P00.00=0) , SVC mode 1
(P00.00=1) and FVC mode (P00.00=3);
Setting range: 0–65535
1000
○
P23.10
Current loop
integral coefficient
I
1000
○
P23.11
Speed loop
differential gain
0.00–10.00s
0.00s
○
P23.12
Proportional
coefficient of high-
frequency current
loop
Under FVC mode (P00.00=3), below current loop high-
frequency switch-over threshold (P23.14), current loop
PI parameters are P23.09 and P23.10; above current
loop high-frequency switch-over threshold, current loop
PI parameters are P23.12 and P23.13.
Setting range of P23.12: 0–65535
Setting range of P23.13: 0–65535
Setting range of P23.14: 0.0–100.0% (relative to max.
frequency)
1000
○
P23.13
Integral coefficient
of high-frequency
current loop
1000
○
P23.14
High-frequency
switch-over
threshold of
100.0%
○