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A: 1. Check whether the motor is connected before auto-tuning to ensure that the motor has been correctly connected with the VFD.
2. Check whether the motor capacity matches the VFD capacity. If the VFD capacity is too small, suggest to replace the VFD matching the motor capacity.
3. Check whether the motor rated parameters are set correctly to ensure that the motor rated parameters have been set correctly before auto-tuning.
4. Check whether the auto-tuning parameters of the VFD deviate too much from the actual values. Users can do auto-tuning for several times and take the closer parameters.
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