A video would of been good
Where you running a 24,000 RPM Spindle motor or something else
You also may have damaged it without having the correct Parameters set on startup
It sounds though that it needed a Braking Resistor to do what you where trying to do, if your spindle was at 24,000 RPM this can be a challenge for any VFD when Decelerating to fast without a Breaking Resistor