Delta VP3000 Series - Page 240

Chapter 5 Initial Operation and Adjustment | VP3000
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Integral Time.
(6) If the speed in the high-speed area oscillates at low frequency or responds slowly,
increase setting for Pr. F2-11 ASR High-Speed Gain or decrease setting for Pr. F2-
12 ASR High-Speed Integral Time.
(7) If the speed in the high-speed area oscillates at high frequency, decrease setting for
Pr. F2-11 ASR High-Speed Gain or increase setting for Pr. F2-12 ASR High-Speed
Integral Time.
5. Adjust speed observer filter bandwidth.
(1) If the speed response is too slow or the frequency command cannot be tracked, increase
setting for Pr. F0-00 IMFOC Speed Observer BW.
(2) If the output frequency fluctuates too much, decrease setting for Pr. F0-00 IMFOC Speed
Observer BW.
6. Test the start loading capacity.
(1) If the motor start loading capacity is insufficient, enlarge low-frequency flux boost
frequency range through Pr. F0-07 IMFOC Flux Boost Decay FREQ and Pr. F0-08
IMFOC Flux Boost End FREQ, and increase setting for Pr. F0-06 IMFOC Flux Boost
Gain.
(2) If the motor start current is too large, decrease setting for Pr. F0-06 IMFOC Flux Boost
Gain.