Delta CT2000 Series User Manual page 377

Chapter 12 Description of Parameter SettingsCT2000 Series
Injection Magnitude

Settings
 The parameter is magnitude command of high frequency injection signal when IPM HFI
sensorless control mode.
 Increase the parameter can get the more accurate estimated value of angle. But the noise of
electromagnetic might be louder if the setting value is too high.
 To get the parameter when motor's parameter is "Auto". And the parameter will influence the
accuracy of angel's estimation.
 When the ratio of salient pole (Lq/Ld) is lower, increase Pr10-52 to make angle detection be
accurate.
1. Set speed control mode: Pr00-10=0, Pr00-11-7 (IPM Sensorless).
2. It is suggested that cutting off the power after finishing tuning, and then re-power on.
3. Start-up with load should adjust the appropriate inertia value Pr11-01 first, and adjust the
suitable high/low speed ASR Kp, Ki according to speed response of system.
4. Light-duty start-up related parameters
PM FOC Sensorless Speed Estimator Bandwidth

Settings
 The parameter is speed estimator bandwidth. Adjust the parameter will influence the stability
and the accuracy of speed for motor.
 If there is low frequency vibrates (the waveform is similar to sine wave) during the process,
then increase the bandwidth. If there is high frequency vibrates (the waveform vibrates
extremely and is like spur), then decrease the bandwidth.
PM Sensorless Observer Low-pass Filter Gain

Settings
 Adjust the parameter will influence the speed estimator's speed of response.
 If there is low frequency vibrates (the waveform is similar to sine wave) during the process,
then increase the gain. If there is high frequency vibrates (the waveform vibrates extremely
and is like spur), then decrease the gain.
AMR (Kp)

Settings
AMR (Ki)

Settings

Active Magnetic regulator--- Kp and Ki. These two parameters will influence magnetic flux
control of field weakening region.
0.0~200.0V
0.00~600.00Hz
0.00~655.35
0.00~3.00
0.00~3.00
12.2-00-15
Factory Setting: 15/30V
Factory Setting: 5.00
Factory Setting: 1.00
Factory Setting: 1.00
Factory Setting: 0.20