LSIS LSLV-S100 - Page 165

Learning Advanced Features
151
Code
Description
Cn.21 ASR-SL P Gain1,
Cn.22 ASR-SL I Gain1
Changes the speed PI controller gain during sensorless vector control. For a PI
speed controller, P gain is a proportional gain for the speed deviation. If
speed deviation becomes higher than the torque the output command
increases accordingly. As the value increases, the faster the speed deviation
decreases. The speed controller I gain is the integral gain for speed deviation.
It is the time taken for the gain to reach the rated torque output command
while a constant speed deviation continues. The lower the value becomes,
the faster the speed deviation decreases.
Cn.23 ASR-SL P Gain2,
Cn.24 ASR-SL I Gain2
Appears only when 1 (Yes) is selected for Cn.20 (SL2 G view Sel). The speed
controller gain can be increased to more than the medium speed for
sensorless vector control. Cn.23 ASR-SL P Gain2 is set as a percentage of the
low speed gain Cn.21 ASR-SL P Gain1 - if P Gain 2 is less than 100.0%, the
responsiveness decreases. For example, if Cn.21 ASR-SL P Gain1 is 50.0% and
Cn.23 ASR-SL P Gain2 is 50.0%, the actual middle speed or faster speed
controller P gain is 25.0%.
Cn.24 ASR-SL I Gain2 is also set as a percentage of the Cn.22 ASR-SL I Gain1.
For I gain, the smaller the I gain 2 becomes, the slower the response time
becomes. For example, if Cn.22 ASR-SL I Gain1 is 100ms and Cn.24 ASR-SL I
Gain2 is 50.0%, the middle speed or faster speed controller I gain is 200 ms.
The controller gain is set according to the default motor parameters and
Acc/Dec time.
Cn.26 Flux P Gain,
Cn.27 Flux I Gain,
Cn.85-87 Flux P Gain13,
Cn.88-90 Flux I Gain1-3
Sensorless vector control requires the rotor flux estimator. For the adjustment
of flux estimator gain, refer to 5.10.2 Sensorless Vector Control Operation Guide
to on page 153.
Cn.28 S-Est P Gain1,
Cn.29 S-Est I Gain1,
Cn.30 S-Est I Gain2
Speed estimator gain for sensorless vector control can be adjusted. To adjust
speed estimator gain, refer 5.10.2 Sensorless Vector Control Operation Guide to
on page 153.
Cn.31 ACR SL P Gain,
Cn.32 ACR SL I Gain
Adjusts the P and I gains of the sensorless current controller. For the
adjustment of sensorless current controller gain, refer to 5.10.2 Sensorless
Vector Control Operation Guide to on page 153.
Cn.53 Torque Lmt Src
Select a type of torque limit setting, using the keypad, terminal block analog
input (V1 and I2) or communication power. When setting torque limit, adjust
the torque size by limiting the speed controller output. Set the retrograde