Remora - ethernet NVEM / EC300 / EC500 cnc board

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3 years 1 month ago #280189 by slawekgonet
Do you, by any chance, have NVMPG? Because that's the only thing I was not able to get working so far.

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3 years 1 month ago #280191 by cnc-phil
No, I do not own one, yet.

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3 years 1 month ago #280201 by Aaroncnc

Ahhh okay, it seems my PWM settings on my VFD are backwards or something haha, when I put spindle speed at 0% I get 100% spindle speed, when i put linuxcnc at 100% spindle speed my actually spindle speed is 0% or well not 0% because I have a required minimum so i don’t damage the drive.
I had this issue on one of my boards see the documentation to fix it
remora-docs.readthedocs.io/en/latest/software/hal-examples.html
see the PWM to 0-10v spindle control with inverted lincurve compensation.
you can also change the numbers in relation if your system is giving non linear speed increases.

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3 years 1 month ago - 3 years 1 month ago #280225 by cnc-phil
Deleted, because I just got too carried away with MY settings and forgot they would not apply to geremyL, Sorry for that.
Last edit: 3 years 1 month ago by cnc-phil.

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3 years 1 month ago #280226 by GeramyL
I think it will actually work with your settings, but i'm having other problems not sure where they are coming from, the controller itself will sometimes no longer respond to ping if i go above 55khz on base frequency, but then my ping climbs to about .5ms instead of .25ms im not sure if this is causing my new issue which is about every step i am off about 0.0127mm or 0.0005" maybe someone here can answer what will cause that amount of problem. I have my calibration tools and my machine can accomplish 0.01mm accuracy if everything on the controller side is good.

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3 years 1 month ago - 3 years 1 month ago #280228 by cnc-phil
My pings are 0.35ms (on a mere 1.5GHz pentium j5005, which was not able to use a paralled BOB, but very happily chrunching away the NVEM apart from a waring about "...display this only once...").
I do not know how to check the steps off mm. By any chance, it won't be a problem like
??? Look after 15:05
TLTRoTW (or ToWatch): I do not think that I can help, sorry.
Last edit: 3 years 1 month ago by cnc-phil.

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