Chapter 12 Description of Parameter Settings|CFP2000 Series
12.2-00-6
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
Factory Setting: 0
Settings 0: No function
1: DC injection
2: High frequency injection
3: Pulse injection
4~5: Reserved
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)
Factory Setting: 0
Settings 0~10
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.
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