Introduction, and new Viel user

[bruin]

I experimented with my VFD and have good news for KBAC owners. You can set the maximum speed trimpot to 70, and this will give you finer speed control with the dial in the operating range. Who runs theirs at 71-100% speed anyways? Setting the minimum trimpot to about 9 o'clock lets you zero the dial and still get a usable low. Mine now runs at around 39 rpm, or 61 SFPM at the lowest speed. I found that below this, the motor no longer turns smoothly (it chugs along).

Digital VFD users, I bet you could dial in even more precision. Have fun!