Chapter 5 Initial Operation and Adjustment | VP3000
241
5-4-5-3 Adjustment Steps
※ You need to complete B-0 SM Autotune first (refer to Section 5-3-3).
1. Choose the motor control method.
Set Pr. C0-02 = 2: FOC.
2. Select the SM rotor initial detection method.
(1) If the mechanism or process allows reversal, set Pr. A3-17 = 1: Force alignment.
If the alignment force at start is insufficient, increase setting for Pr. A3-18 Force
Alignment Current Value; if the alignment current is too large, decrease setting for Pr. A3-
18 Force Alignment Current Value.
(2) If the motor is SPM and the system does not allow reversal, set Pr. A3-17 = 2: Pulse
inject.
If the operation direction at start is incorrect, increase setting for Pr. A3-20 Pulse Inject
Current Threshold; if the start current is too large or causes ocA, decrease setting for Pr.
A3-20 Pulse Inject Current Threshold.
(3) If the motor is IPM, PMA and SynRM and the system does not allow reversal, set Pr. A3-
17 = 3: HFI.
If the operation direction at start is incorrect, increase setting for Pr. A3-22 HFI
Amplitude; if there is evidence of electromagnetic noise, decrease setting for Pr. A3-22
HFI Amplitude.
3. Setup stop method.
5. Select operation method at low-frequency.
(1) If the motor is IPM, PMA and SynRM, set Pr. F1-00 IF/ HFI Selection = 0: HFI.
a. If the motor cannot be started or the speed oscillates at low-frequency, increase
setting for Pr. F1-07 HFI Injection Amplitude or increase setting for Pr. F1-04 IF/HFI
to SM Switch FREQ.
b. If the acceleration is poor, increase setting for Pr. F1-02 HFI PLL BW Gain.
(2) If the motor is SPM, set Pr. F1-00 IF/ HFI Selection = 1: IF.
a. If the motor cannot be started or the speed oscillates at low-frequency, increase
setting for Pr. F1-01 IF Command or increase setting for Pr. F1-04 IF/HFI to SM
Switch FREQ.
6. ASR Parameter Autotune
A. Use system inertia and ASR bandwidth adjustment.
(0) Set Pr. F2-01 System Inertia.
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