Quote Originally Posted by JAZZCNC View Post
The usable range is 6k to 24k rpm. Go much below 5k and there is no torque without playing with VFD settings.

The settings for acceleration and de-acceleration are PD14 and PD15. Set to 5 and 10 respectively, don't go too low on the acceleration otherwise, you will get over current/voltage error's as the VFD dumps loads of current/voltage into the spindle trying to meet the request to get upto speed in the short time period.
i will never run it at anything less than 24k.

the acceleration seems to be fine, no issues there. but it doesnt seem as powerful as my previous router?!

ive come from a denford microrouter with a 1.1kw spindle, to this with a 2.2kw spindle.

using exactly the same wood and cut settings as i would have used on my denford, the 2.2kw struggled and made a hell of a noise!

i was expecting better cutting performance from a 2.2kw watercooled spindle.