Wow, so much information, you are incredible

[davidpbest]

Another advantage to VFD's is that they can be programmed to slowly ramp up the speed of the motor when starting. This effectively reduces the inrush current during start-up, which is a huge advantage when using a marginal electrical supply source.

And they can ramp down with a suitable breaking resistor connected, as noted in this video. That's Mark's proximity stop in action.