Just blown up my inverter

[Boyan Silyavski]

Forget about that spindle displaying RPM. Why would you need that?

You will need only to fine tune the input voltage and the voltage adjustment in the VFD , so your spindle to run correctly at 3000, 6000, 10000, 12000, 16000, 18000, 24000 rpm, Once you have done that more or less, as its always a compromise, then you are done. When all is controlled from software and runs well, why would you need spindle to display RPM?

I was like you at the start, but in reality it could be 3 years before you look at the VFD if all is running as expected...