Chapter 12 Description of Parameter SettingsME300
12.1-10-3
Injection Magnitude
Default: 15.0 / 30.0
Settings 0.0–200.0 V
The parameter is the magnitude command for the high frequency injection signal in PM SVC
control mode.
Increasing the parameter can increase the accuracy of the angle estimation, but the
electromagnetic noise might be louder if the setting value is too high.
The system uses this parameter when the motor’s parameter is “Auto”. This parameter
influences the angle estimation accuracy.
When the ratio of the salient pole (Lq/Ld) is lower, increase Pr.10-52 to make the angle detection
more accurate.
Pr.10-52 is valid only when Pr.10-53 = 2.
Position Detection Method
Default: 0
Settings 0: Disabled
1: Internal 1/4 rated current attracting the rotor to zero degrees
2: High frequency injection
3: Pulse injection
Set to 2 for IPM; set to 3 for SPM. If these settings cause problems, then set the parameter to 1.
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