Independent move axis 6

Hi, having issues with independent axis on axis 6. We’re getting a Duty Factor warning. Says something about adjustments in the error message to "reduce damage to motor and gearbox.

Is it a heat issue or is it a wear of the gearbox issue, and what would be adjusted?
We’re grinding round items with the robot so the independent axis movement is requiered.

Thank you for your help

/Alexander