> -----Original Message-----
> From: Jon Elson [mailto:el...@pico-systems.com]
> On 03/03/2021 09:17 PM, John Dammeyer wrote:
> > Recall this is open loop motion with no feedback from the
> > servo other than if the servo faults which it doesn't. So
> > weight shouldn't matter. Should it?
> OK,this is EXTREMELY bizarre! In open loop, how could
> LinuxCNC know anything about the load on the motor? I think
> maybe it is some kind of electrical noise issue, the
> switching noise from the drive could well increase as motor
> current increases. Possibly you could put some ferrite
> cores over the motor leads.
>
> Jon
Yes again my apologies for not being clear about that. Step/dir from MESA
7i92H
I weighed the mass and it's 118 lbs or so. I see the motor current climb to
about 3.5A.
I agree that I need to add some ferrites on the motor wires. I've been playing
with the new motor and a 26 pound vise on the table with no issues for the last
few weeks. And then add weight and now errors. Might just add some ferrites
to the network cable too. The AC Servo drive is still sitting out away from
everything else. So if the motor itself is radiating it might be picked up by
one of the other cables.
Baby steps...
John
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