Re: [Emc-users] Measuring Noise - Oscilloscope

I was just curious not needing to compare. On 1/1/2016 5:26 PM, Ben Potter wrote: >> From: John Thornton [mailto:j...@gnipsel.com] >> If you have limit switches set them up to home also, saves time when > firing up as last offsets are still good. Also the soft limits work when you > home. Got a

Re: [Emc-users] Measuring Noise - Oscilloscope

Mark, The short answer is replacing the limit/home switch wiring with shielded cable and grounding it to one place was the difference in making the sserial errors go away. Unless you need 2.7 back up to 2.6 till you get rid of the sserial errors. JT On 1/1/2016 4:28 PM, Mark Johnsen wrote: >

Re: [Emc-users] Measuring Noise - Oscilloscope

On 01/02/2016 12:27 AM, andy pugh wrote: >>> I'm assuming using a scope is the right way to do it? >> Yes and no. It depends on what you are tracking and how it is induced. > Also, there is no way to detect an occasional microsecond spike > without recording and analysing unfeasible quantities of

Re: [Emc-users] Measuring Noise - Oscilloscope

John, Thanks for the direction, I'll look at that for the limits. My machine is the _one_ switch type for limits on both ends without a home. I didn't setup a home, but after using the mill for the last year, probably a good idea. I have been running 2.6.11 on a different harddrive, so good

Re: [Emc-users] Measuring Noise - Oscilloscope

On Friday 01 January 2016 18:33:32 Bertho Stultiens wrote: > On 01/02/2016 12:27 AM, andy pugh wrote: > >>> I'm assuming using a scope is the right way to do it? > >> > >> Yes and no. It depends on what you are tracking and how it is > >> induced. > > > > Also, there is no way to detect an

Re: [Emc-users] Measuring Noise - Oscilloscope

If you have limit switches set them up to home also, saves time when firing up as last offsets are still good. Also the soft limits work when you home. Got a photo of the el cabinet? JT On 1/1/2016 5:01 PM, Mark Johnsen wrote: > John, > > Thanks for the direction, I'll look at that for the

Re: [Emc-users] Measuring Noise - Oscilloscope

On 1 January 2016 at 23:21, Bertho Stultiens wrote: >> I'm assuming using a scope is the right way to do it? > > Yes and no. It depends on what you are tracking and how it is induced. Also, there is no way to detect an occasional microsecond spike without recording and

[Emc-users] Measuring Noise - Oscilloscope

Bertho, Thanks for the note. I replied inline below. -- > > Message: 4 > Date: Sat, 2 Jan 2016 00:21:12 +0100 > From: Bertho Stultiens <ber...@vagrearg.org> > Subject: Re: [Emc-users] Measuring Noise - Oscilloscope > To: "Enh

Re: [Emc-users] Measuring Noise - Oscilloscope

From: andy pugh [mailto:bodge...@gmail.com] > On 1 January 2016 at 23:21, Bertho Stultiens wrote: >>> I'm assuming using a scope is the right way to do it? >> Yes and no. It depends on what you are tracking and how it is induced. >Also, there is no way to detect an

Re: [Emc-users] Measuring Noise - Oscilloscope

> From: Mark Johnsen [mailto:m...@ijohnsen.com] > John, > Thanks for the direction, I'll look at that for the limits. My machine is the _one_ switch type for limits on both ends without a home. I didn't setup a home, but after using the mill for the last year, probably a good idea. > I have

[Emc-users] Measuring Noise - Oscilloscope

I have a very similar setup to John Thornton and same noise issue w/ 2.7.3: Mesa 5i25/7i77 Transformer 120vac:80Vac, rectified w/ large cap to run 3-axes West Amp servo's (Not sure John has this) GS2 Automation direct 3hp drive, powered by separate 240Vac single phase input. Also, I use his

Re: [Emc-users] Measuring Noise - Oscilloscope

On 01/01/2016 11:28 PM, Mark Johnsen wrote: > Anyway, I've been reading all the posts here and on the IRC as I've been > away for X-mas Holiday and I think I would like to be able to measure the > noise to be able to determine if my changes make an effect. I've > unsuccessfully dealt w/ noise