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Can’t Achieve a Passing Balance Grade?

 If after completing the balancing session, the software displays a red X as the balance result or you are unable to achieve the needed balance grade despite multiple corrections, the issue may be related to the test configuration. Check the following potential sources of error to identify and resolve the problem:

1. Ensure that the Flight Stand is securely mounted to a rigid surface, i.e., bolted in a concrete floor.

It will be challenging to achieve a passing balance if the stand is not properly secured to the ground. Avoid mounting the stand on crates, tables or surfaces that can vibrate.

2. Ensure that the motor, propeller, adapter and fasteners are securely tightened.

3. Confirm that the “Rotation speed” and “Vibration” inputs are correctly mapped

Incorrect input mapping prevents the software from using the correct sensors and channels.

For the “Rotation speed” input, select the Optical RPM probe from the drop-down menu. Do not select the fiber-optic sensor for the “Rotation speed” input as it is not associated with the measured vibrations for balancing.

4. Verify the value used in the “Rotor mass” field

Entering a rotor mass that is too low or too high can affect the software's calculation of the correction mass needed to reach the quality grade. Ensure the value entered includes the mass of both the motor’s rotating components and the propeller.

 

5. Verify the “Operating speed” field

The operating speed typically corresponds to the RPM at which you intend to operate the propulsion system in real-world conditions. However, if balancing at this RPM does not provide consistent results, resolve this by using a higher or lower RPM.

6. Verify the “Correction radius” field

The correction radius entered in the balancing session details corresponds to the location at which the balancing mass will be added. Placing the correction mass too close to the propeller’s hub reduces the correction effect. To resolve this, select a higher correction radius toward the tip of the propeller blade.

Finally, ensure that the radius entered in the software matches the actual position of the added mass.

If you are still experiencing issues with the propeller balancing feature, please contact our support team through our support form.