Re: [Emc-users] Resetting rotary movement count

On 10 Jan 2016, at 00:22, andy pugh wrote: > On 5 January 2016 at 11:34, Dave Caroline wrote: >> Here is an example of with and without limits in a trunnion design >>

Re: [Emc-users] Rewiring the BP

Yes, and I need to start a new thread as new info has been received. JT On 1/9/2016 7:49 PM, Dave Cole wrote: > Just saw your message. > > If you keep the VFD powered off, do you still have noise issues ?? > > Dave > > On 1/4/2016 5:19 PM, John Thornton wrote: >> I have 3 DC power supplies in

[Emc-users] Rewiring the BP Again

Well none of the suggestions about star grounding did any good. In fact they made the problem worse than before, so bad I could not even get 2.6 to run. Off this list I was sent the AB servo best wiring practices pdf which explained how to reduce noise in a servo drive enclosure. I followed

Re: [Emc-users] Rewiring the BP Again

On 01/10/2016 12:44 PM, John Thornton wrote: > Well none of the suggestions about star grounding did any good. In > fact they made the problem worse than before, so bad I could not even > get 2.6 to run. That may suggest a couple of things being wrong simultaneously: 1) you may still have loops

Re: [Emc-users] Resetting rotary movement count

On 10.01.16 09:45, Marcus Bowman wrote: > On 10 Jan 2016, at 00:22, andy pugh wrote: > > > On 5 January 2016 at 11:34, Dave Caroline > > wrote: > >> Here is an example of with and without limits in a trunnion design > >>

Re: [Emc-users] Rewiring the BP Again

Do you have filters just prior to the input power on the AB Servo drives? I've also had problems with Teco servo drives backfeeding noise into the AC line and messing with Mesa boards. An input filter from AD fixed that problem as well. Dave On 1/10/2016 6:44 AM, John Thornton wrote: > Well

[Emc-users] help me MESA card select

*would like to realize the set-up of the CNC mill You can find it in the attachement.* *Please help me to select which MESA controller cards would be the best for this function.* *The computer will be PC. In this PC there are 2 qty PCI expansion ports and 2 qty PCIE 1x slot. Also ethernet

Re: [Emc-users] Resetting rotary movement count

On Sunday 10 January 2016 06:56:35 Erik Christiansen wrote: > On 10.01.16 09:45, Marcus Bowman wrote: > > On 10 Jan 2016, at 00:22, andy pugh wrote: > > > On 5 January 2016 at 11:34, Dave Caroline wrote: > > >> Here is an example of with and without limits in a

Re: [Emc-users] Rewiring the BP Again

On 01/10/2016 02:48 PM, Bertho Stultiens wrote: > The sserial connection has a great potential for a loop. See attached > image for illustration. The image has a shielded connection between two > devices, which is good. However, the 0VDC connection (aka GND), which is > embedded in the shielded

Re: [Emc-users] Rewiring the BP Again

I don't have AB drives... I have a filter on my GS2 and another one after the control transformer. JT On 1/10/2016 11:40 AM, Dave Cole wrote: > Do you have filters just prior to the input power on the AB Servo drives? > > I've also had problems with Teco servo drives backfeeding noise into the

Re: [Emc-users] Rewiring the BP Again

I tried to find the original message in previous monster thread to have a better understanding of the problem but could not find it. I can't remember seeing what is connecting to VFD and few other things. I assume it's a Mesa board but which one? [1] We all seem to keep running in circles

Re: [Emc-users] Rewiring the BP Again

I understand.I'm working out of town and just came back for the weekend. For me this is a good time to be distracted with too much work. It helps me ignore the wind gusts to 30 mph, the snow, and the temps headed to 8 degrees F for tonight. Except that I need to drive a long ways in this

[Emc-users] LinuxCNC 2.6.12 released

LinuxCNC 2.6.12 has been released. This release fixes a couple of relatively obscure bugs. All 2.6 users are encouraged to upgrade. Credit for this release goes to all the folks who have reported bugs in our code and documentation, and especially to the people who have committed bugfixes and

Re: [Emc-users] Rewiring the BP Again

My mistake, gotta clean my glasses apparently. What are you using for axes drives? Dave On 1/10/2016 3:35 PM, John Thornton wrote: > I don't have AB drives... I have a filter on my GS2 and another one > after the control transformer. > > JT > > On 1/10/2016 11:40 AM, Dave Cole wrote: >> Do you

Re: [Emc-users] Rewiring the BP Again

The original Anliam drives and power supply. JT On 1/10/2016 2:41 PM, Dave Cole wrote: > My mistake, gotta clean my glasses apparently. > > What are you using for axes drives? > > Dave > > On 1/10/2016 3:35 PM, John Thornton wrote: >> I don't have AB drives... I have a filter on my GS2 and

Re: [Emc-users] Rewiring the BP Again

Still trying to digest this in between working... On 1/10/2016 7:48 AM, Bertho Stultiens wrote: > On 01/10/2016 12:44 PM, John Thornton wrote: >> Well none of the suggestions about star grounding did any good. In >> fact they made the problem worse than before, so bad I could not even >> get 2.6

Re: [Emc-users] Rewiring the BP Again

Hmm.. perhaps you should tell Peter that Missouri is wonderful this time of year. Perhaps he will schedule a flight to the "show me state". :-) Dave On 1/10/2016 3:35 PM, John Thornton wrote: > I don't have AB drives... I have a filter on my GS2 and another one > after the control

Re: [Emc-users] help me MESA card select

On Sunday 10 January 2016 12:14:23 Horváth Csaba wrote: > *would like to realize the set-up of the CNC mill You can find it in > the attachement.* > *Please help me to select which MESA controller cards would be the > best for this function.* > *The computer will be PC. In this PC there are 2 qty

Re: [Emc-users] help me MESA card select

On 10 January 2016 at 17:14, Horváth Csaba wrote: > *Please help me to select which MESA controller cards would be the best for > this function.* For step-dir and encoders the normal recomendation would be the 5i25 or 6i25 and then a 7i85S for the step/dir and encoder

[Emc-users] DIY rotary encoders and how they work.

The video here was very informative, showing how a small gear motor and a windshield wiper motor can be converted to servo motors. It also covers things like positioning accuracy and shows a motor from a printer with a very high count encoder disk.