![Quote](images/misc/quote_icon.png)
Originally Posted by
Norkamus
So the ground terminal on the VFD would have two wires on it, correct? --> One from the spindle ground that I create, and the other on the ground wire for the 220v supply into the VFD... Yeah, I'm pretty new at this..
I'd like to guess about the Chinese note on causing damage if the spindle is grounded. They refer to the problem being when cutting metal (pretend for a moment that is possible with this spindle). Would they be referring to creating a ground loop? When your cutter engages the material, it would be possible depending on your machine construction that the spindle ground and the chassis ground are connected?
What kind of damage are we talking about with a ground loop here? Death? Destroying the VFD or spinlde?
Nick