Re: [Emc-users] Printer ports are not dead yet! (linuxcnc closing the servo loop with $10 pci card)

2022-08-23 Thread Sam Sokolik
The spindle motor is a brushed dc.  I am planning on using another amc
drive to drive it...

On Tue, Aug 23, 2022, 4:33 PM  wrote:

> On 2022-08-23 19:29, Sam Sokolik wrote:
> > Little Emco lathe with some pittman servos...   Amc drive that takes
> > PWM+Dir.
> >
>
> Looks pretty smooth to me.
> What Pittman servos are those?
> What will you do with the spindle drive motor? Servo?
>
> Marcus
>
>
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Re: [Emc-users] Printer ports are not dead yet! (linuxcnc closing the servo loop with $10 pci card)

2022-08-23 Thread marcus . bowman

On 2022-08-23 19:29, Sam Sokolik wrote:

Little Emco lathe with some pittman servos...   Amc drive that takes
PWM+Dir.



Looks pretty smooth to me.
What Pittman servos are those?
What will you do with the spindle drive motor? Servo?

Marcus


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[Emc-users] Printer ports are not dead yet! (linuxcnc closing the servo loop with $10 pci card)

2022-08-23 Thread Sam Sokolik
Little Emco lathe with some pittman servos...   Amc drive that takes
PWM+Dir.

https://www.youtube.com/watch?v=sUz5ZZyf2LU

Of course caveats..
-with the input scale of 50800/inch - speed limited to about 35ipm.
(probably fast enough for me)
-Tuning has to be good - because if there is an oscillation - it
oscillates faster than the computer can count..

Other than that.Seems like it would work ok...

(a mesa card like the 7i92 would be way better)  but this shows that you
could get into basic closed loop servo control for the price of a printer
port - you can still get them and pci-e is still a thing..

sam

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Re: [Emc-users] 6i25 PC spontaneous reboot

2022-08-23 Thread Curtis Dutton
I think that the problem is the motherboard. I pulled the MOBO/CPU from
another machine. Put it all back together and it is running like a champ
now.

It's always a crapshoot with these new motherboards/cpus. They seem pretty
iffy... keep trying them until one works. It's always been that way for as
long as I can remember!

Thanks!



On Tue, Aug 23, 2022 at 12:07 PM Peter C. Wallace  wrote:

> On Tue, 23 Aug 2022, Curtis Dutton wrote:
>
> > Date: Tue, 23 Aug 2022 11:44:54 -0400
> > From: Curtis Dutton 
> > Reply-To: "Enhanced Machine Controller (EMC)"
> > 
> > To: "Enhanced Machine Controller (EMC)"  >
> > Subject: [Emc-users] 6i25 PC spontaneous reboot
> >
> > So I had a power outage last week and it took out the PC of my cnc router
> > when the power returned. PS died and took the MOBO with it.
> >
> > It was 7 years old so not a big deal.
> >
> > I upgraded to an MSI 320M PRO-VH with an AMD Athalon 3000G.
> >
> > I was previously running a 5i25 but this board doesn't have a PCI slot so
> > (until the adaptor comes) I pulled a 6i25 from one of my other machines.
> >
> > My setup is a 6i25 with 2 7i85S boards attached.
> >
> > All power is supplied to the 7i85S boards via a separate 5v power supply.
> > All the jumpers are set properly. They are set to standard defaults as is
> > described in the manual.
> >
> > W1 down
> > W2 down
> > W3 down
> > W4 up
> > W5 up
> > W7 down
> > W8 up
> >
> > So far so good.
> >
> > I have everything booting up and the machine starts up and it appears
> that
> > all functions work properly.
> >
> > With the machine enabled and no motion commands going it works properly.
> > However when I start jogging any of the axis the PC resets and then
> > restarts.
> >
> > The spindle works properly (VFD controlled by USB) and doesn't cause the
> > reset. IO works properly and the machine is enabled so the velocity loops
> > are active meaning that the 6i25 is functioning properly. It has sat idle
> > for hours with no reset. Once I jog it... after a few seconds it resets.
> >
> > Does anyone have any ideas about what could be occurring. I'm a bit
> stumped
> > here.
> >
> > Thanks,
> >   Curt
>
> Does it reset if power down the axis drives?
> might be a EMI/noise/grounding issue.
>
>
> >
> > ___
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> >
>
> Peter Wallace
> Mesa Electronics
>
> (\__/)
> (='.'=) This is Bunny. Copy and paste bunny into your
> (")_(") signature to help him gain world domination.
>
>
>
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Re: [Emc-users] 6i25 PC spontaneous reboot

2022-08-23 Thread Peter C. Wallace

On Tue, 23 Aug 2022, Curtis Dutton wrote:


Date: Tue, 23 Aug 2022 11:44:54 -0400
From: Curtis Dutton 
Reply-To: "Enhanced Machine Controller (EMC)"

To: "Enhanced Machine Controller (EMC)" 
Subject: [Emc-users] 6i25 PC spontaneous reboot

So I had a power outage last week and it took out the PC of my cnc router
when the power returned. PS died and took the MOBO with it.

It was 7 years old so not a big deal.

I upgraded to an MSI 320M PRO-VH with an AMD Athalon 3000G.

I was previously running a 5i25 but this board doesn't have a PCI slot so
(until the adaptor comes) I pulled a 6i25 from one of my other machines.

My setup is a 6i25 with 2 7i85S boards attached.

All power is supplied to the 7i85S boards via a separate 5v power supply.
All the jumpers are set properly. They are set to standard defaults as is
described in the manual.

W1 down
W2 down
W3 down
W4 up
W5 up
W7 down
W8 up

So far so good.

I have everything booting up and the machine starts up and it appears that
all functions work properly.

With the machine enabled and no motion commands going it works properly.
However when I start jogging any of the axis the PC resets and then
restarts.

The spindle works properly (VFD controlled by USB) and doesn't cause the
reset. IO works properly and the machine is enabled so the velocity loops
are active meaning that the 6i25 is functioning properly. It has sat idle
for hours with no reset. Once I jog it... after a few seconds it resets.

Does anyone have any ideas about what could be occurring. I'm a bit stumped
here.

Thanks,
  Curt


Does it reset if power down the axis drives?
might be a EMI/noise/grounding issue.




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Peter Wallace
Mesa Electronics

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(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination.



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[Emc-users] 6i25 PC spontaneous reboot

2022-08-23 Thread Curtis Dutton
So I had a power outage last week and it took out the PC of my cnc router
when the power returned. PS died and took the MOBO with it.

It was 7 years old so not a big deal.

I upgraded to an MSI 320M PRO-VH with an AMD Athalon 3000G.

I was previously running a 5i25 but this board doesn't have a PCI slot so
(until the adaptor comes) I pulled a 6i25 from one of my other machines.

My setup is a 6i25 with 2 7i85S boards attached.

All power is supplied to the 7i85S boards via a separate 5v power supply.
All the jumpers are set properly. They are set to standard defaults as is
described in the manual.

W1 down
W2 down
W3 down
W4 up
W5 up
W7 down
W8 up

So far so good.

I have everything booting up and the machine starts up and it appears that
all functions work properly.

With the machine enabled and no motion commands going it works properly.
However when I start jogging any of the axis the PC resets and then
restarts.

The spindle works properly (VFD controlled by USB) and doesn't cause the
reset. IO works properly and the machine is enabled so the velocity loops
are active meaning that the 6i25 is functioning properly. It has sat idle
for hours with no reset. Once I jog it... after a few seconds it resets.

Does anyone have any ideas about what could be occurring. I'm a bit stumped
here.

Thanks,
   Curt

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