Sensorless Vector Control
CON-24
ASR-SL P Gain1,
CON-25
ASR-SL I Gain1
Speed Controller P Gain1 and I Gain1 - Changes the speed PI
controller gains during sensorless vector control. P Gain1 is a
proportional gain for the speed deviation. If speed deviation becomes
higher than the torque, the output command increases accordingly. As
the P Gain1 value is increased, the faster the speed deviation
decreases. I Gain1 is the integral gain for the speed deviation. It is the
time taken for the gain to reach the rated torque output command while
a constant speed deviation continues. As the I Gain1 value is
decreased, the faster the speed deviation decreases.
Speed controller gain can improve the speed control waveform while
monitoring the changes in speed. If speed deviation does not
decrease quickly, increase the speed controller P gain or decrease I
gain (time in ms). However, if the P gain is increased too high or I
gain is decreased too low, severe vibration may occur. If oscillation
occurs in the speed waveform, try to increase I gain (ms) or reduce P
gain to adjust the waveform.
CON-26
ASR-SL P Gain2,
CON-27
ASR-SL I Gain2
Speed Controller P Gain2 and I Gain2 - The speed controller gain
can be increased to more than the medium speed for sensorless
vector control. P Gain2 is set as a percentage of the low speed gain
CON-24 ASR-SL P Gain1. If P Gain2 is less than 100.0%, the
responsiveness decreases. For example, if CON-24 ASR-SL P Gain1
is 50.0% and CON-26 ASR-SL P Gain2 is 50.0%, the actual middle
speed or faster speed controller P Gain is 25.0%.
CON-27 ASR-SL I Gain2 is also set as a percentage of the CON-25
ASR-SL I Gain1. For I Gain, the smaller the I Gain2 is set, the slower
the response time becomes. For example, if CON-25 ASR-SL I Gain1
is 100ms and CON-27 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 times.
CON-29 Flux P Gain,
CON-30 Flux I Gain,
CON-.85-87 Flux P
Gain1~3,
CON-88-90 Flux I
Gain1~3
Flux Estimator P Gain and I Gain - Sensorless vector control requires the
rotor flux estimator. For adjustments of the flux estimator gains, refer to
Sensorless Vector Control Operation Guide
CON-31
S-Est P Gain1,
CON-32
S-Est I Gain1,
CON-33
S-Est I Gain2
Speed Estimator P Gain1 and I Gain1 - Speed estimator gain for
sensorless vector control can be adjusted. For adjustments of the speed
estimator gains, refer to Sensorless Vector Control Operation Guide on pg.
239.
CON-48
ACR SL P Gain,
CON-49
Current Controller P Gain and I Gain - Adjusts the P and I gains of the
sensorless current controller. For adjustments of the sensorless current
controller gains, refer to Sensorless Vector Control.
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