Spindle RPM change lag

[srwtlc]

I'd like to know if anyone that is using either of the last two versions of SB3 (.40 and .42) is seeing a lag between the time that a RPM change TR command is passed and when the VFD/spindle actually changes RPM. I'm seeing anywhere from 1 - 3 seconds lag time.

It's a little unsettling to see/hear a cut that is running a lower RPM/feedrate transition to what should be a higher RPM/feedrate cut when the tool is well on it's way into the next cut before the RPM is updated!!

The last several versions have been a toss up as to whether or not the spindle control works as it should.

[foampro]

I can't get my control to work with the updates. Is there a solution?

[srwtlc]

Glen,

In the little spindle control window, click on "RPM" and a fill-in sheet should come up. Make sure that you have the right port chosen along with the type of VFD that you have. Set the htz scale to 100. The last version was set for the desktop VFD.

I'm still dealing with rpm lag. Waiting for the next version.