Injection Frequency; Injection Magnitude; Position Detection Method - Delta MS300 Series User Manual

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
 This parameter is a high frequency injection command in PM SVC control mode, and usually it
doesn't need to be adjusted. But if a motor's rated frequency (i.e. 400 Hz) is too close to the
frequency setting of this parameter (i.e. factory setting 500 Hz), the accuracy of angles detected
will be affected. Therefore, refer to the setting of Pr. 01-01 before adjusting this parameter.
 If the setting value of Pr. 00-17 is lower than Pr. 10-51*10, then increase the frequency of carrier
wave.
 Pr. 10-51 is valid only when Pr. 10-53 = 2.

 The parameter is magnitude command of high frequency injection signal in PM SVC control
mode.
 Increasing the parameter can get more accurate estimated value of angle. But the noise of
electromagnetic might be louder if the setting value is too high.
 This parameter will be received when motor's parameter is "Auto". And this parameter will
influence the accuracy of angel's estimation.
 When the ratio of salient pole (Lq / Ld) is lower, increase Pr. 10-52 to make angle detection be
accurate.
 Pr. 10-52 is valid only when Pr. 10-53 = 2.

 It is suggested to set as "2" if it is IPM; set as "3" if it is SPM. If there is bad effect when set as
"2" or "3", then set as "1".
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Injection Frequency

Settings 0~1200 Hz

Injection Magnitude

Settings 0.0~200.0 V

Position Detection Method

Settings 0: Disabled
1: Internal 1/4 rated current attracting the rotor to zero degrees
2: High frequency injection
3: Pulse injection
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Chapter 12 Description of Parameter SettingsMS300
12.1-10-6
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Factory Setting: 500
Factory Setting: 15.0 / 30.0
Factory Setting: 0
Email: info@deltaacdrives.com