Quote Originally Posted by Techtonix View Post
I have two strange problems...
1)I have set mine up and works somewhat. My max rpm at 400hz is 11520, though it's supposed to be 24000.

2)The external on/of switch and pot work fine at until 300hz. Over 300hz and the system becomes unresponsive to reducing the pot or switching the control off. The only way to stop the spindle is to unplug the inverter.
Is this what you are looking for :- http://www.mycncuk.com/threads/7388-...se-Spindle-VFD