VFD error

[JAZZCNC]

Been there done this and it cost me VFD + Spindle.!! . . . . . . I made the strain relief from start but temp removed spindle to check some spindle mounts I'd made for some one as didn't have a spare spindle handy but didnt put it back straight away as I had more to make then it got forgot until it did excatly what yours did.!! . . . . . Hope you haven't fried the spindle as well.!

[Jonathan]

It keeps telling me there is a fault (E14 - UVW to earth fault).

Given that you've disconnected the spindle, reset the VFD and the fault persists, that implies there actually is a connection between one or more of the UVW terminals to earth. The simplest explanation for that would be an IGBT that has failed to make a short circuit. I'd have a look inside as you should be able to identify this with a multimeter. If it uses an IGBT module then that will be quite expensive to replace and probably not worth the risk, but if it's individual IGBTs it's probably worth a shot - the issue is you don't know if any of the associated circuits (e.g. gate drive) have been damaged.

No problem getting a higher rated VFD than you need, within reason.

If you need the extra torque from the 3kW spindle then clearly get it...

Been there done this and it cost me VFD + Spindle.!!

You should try rewinding it - shouldn't be difficult.