Detailed Function Description
57
The system's dynamic response can be faster if the proportion gain K
p
is increased;
However, if K
p
is too large, the system tends to oscillate.
The system dynamic response can be faster if the integral time K
i
is decreased;
However, if K
i
is too small, the system becomes overshoot and tends to oscillate.
P3.00 and P3.01 are corresponding to K
p
and K
i
at low frequency, while P3.03 and P3.04
are corresponding to K
p
and K
i
at high frequency. Please adjust these parameters
according to actual situation. The adjustment procedure is as follow:
1.
Increase the proportional gain (K
p
) as far as possible without creating oscillation.
2.
Reduce the integral time (K
i
) as far as possible without creating oscillation.
For more details about fine adjustment, please refer to description of P9 group.
Function
Code
Name
Description
Setting
Range
Factory
Setting
P3.06
ACR proportional gain P
0~65535
0~65535
500
P3.07
ACR integral gain I
0~65535
0~65535
500
The bigger the proportional gain P, the faster the response, but oscillation may easily
occur. If only proportional gain P is applied in regulation, the bias cannot be eliminated.
In order to eliminate the bias, apply the integral gain I to achieve PI regulator.
Function
Code
Name
Description
Setting
Range
Factory
Setting
P3.08
Speed detection
filter time
0.00~5.00s 0.00~5.00
0.00s
The noise along with speed detection signals can be filtered by setting the time constant
of filter (P3.08). The bigger the time constant, the better the immunity capability, but the
response becomes slow, vice versa.
Function
Code
Name
Description
Setting
Range
Factory
Setting
P3.09
Slip compensation rate of
VC
50.0~200.0% 50~100 100%
The parameter is used to adjust the slip frequency of vector control and improve the
precision of speed control. Properly adjusting this parameter can effectively restrain the
static speed bias.
Function
Code
Name
Description
Setting
Range
Factory
Setting
P3.10 PG
parameter 1~65535
1~65535 1000
P3.11
PG direction
selection
0: Forward
1: Reverse
0~1 0
