Delta CT2000 Series User Manual page 368

the accuracy of angles detected will be affected. Therefore, refer to the setting of Pr01-01
before adjusting this parameter.
 If the setting value of Pr00-17 is lower Pr10-51*10, then increase the frequency of carrier
wave.
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.
PM Motor Initial Rotor Position Detection Method

Settings
 It is suggested to set as "2" if it's IPM; set as "3" if it's SPM. If there is bad effect when set as
"2" or "3", then set as "1".
11. Parameters for speed adjustment
Torque Compensation Gain (V/F and SVC control mode)

Settings
 The parameter influences the output current during the running process. There will be less
effect on the low speed area.
 Increase the setting value if the current with no-load is too high. But it might also cause the
motor to vibrate. If the motor vibrates during the operation, decrease the setting value.
Chapter 12 Description of Parameter SettingsCT2000 Series
0.0~200.0V
0: No function
1: DC injection
2: High frequency injection
3: Pulse injection
4~5: Reserved
0~10
12.2-00-6
Factory Setting: 15/30V
Factory Setting: 0
Factory Setting: 0