[Emc-users] Spindle encoder on 7i76

2014-07-15 Thread Marius Liebenberg
What would the highest safe RPM be for a 2048 quadrature spindle encoder 
on the 7i76.
I have to use some pulleys to mount the encoder on my spindle and I 
would like to use what I have on the shelf if possible.
My lathe can go to 2000 RPM maximum but after fitting a VFD it might go 
higher. Not that I know how to use it at those speeds anyway.

-- 

Regards /Groete

Marius D. Liebenberg
+27 82 698 3251
+27 12 743 6064
QQ 1767394877


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Re: [Emc-users] Spindle encoder on 7i76

2014-07-15 Thread andy pugh
On 15 July 2014 10:44, Marius Liebenberg mar...@mastercut.co.za wrote:
 What would the highest safe RPM be for a 2048 quadrature spindle encoder
 on the 7i76.
 I have to use some pulleys to mount the encoder on my spindle and I
 would like to use what I have on the shelf if possible.

1:1 is the right ratio, if you want to use the index from the encoder.
The encoder on the 7i76 can do 10Mhz according to the manual, so that
should be OK to 292,000 rpm.

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

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Re: [Emc-users] integrator manual

2014-07-15 Thread John Thornton
Aram,

Big Picture:
home switch connect home pin

IM
detail much problem cause

try Mach
agenda none


On 7/14/2014 4:36 PM, a k wrote:
want to address to those who put together --integrator manual--I M



 i search in it for home homing -  and I M provides only separate blocks and
 never show main plan - skeleton to where need to add those building blocks.


 I M does not shows any working sample - like for homing -- as an example
 from previous model --emc2-- 2.2.5

 maybe one will say that will be OK and copy/past and problem solved.

  problem solved  was not on agenda



 it is web based manual no paper will be wasted – many publisher afraid
 that.
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Re: [Emc-users] Spindle encoder on 7i76

2014-07-15 Thread Marius Liebenberg

On 2014-07-15 14:00, andy pugh wrote:
 On 15 July 2014 10:44, Marius Liebenberg mar...@mastercut.co.za wrote:
 What would the highest safe RPM be for a 2048 quadrature spindle encoder
 on the 7i76.
 I have to use some pulleys to mount the encoder on my spindle and I
 would like to use what I have on the shelf if possible.
 1:1 is the right ratio, if you want to use the index from the encoder.
 The encoder on the 7i76 can do 10Mhz according to the manual, so that
 should be OK to 292,000 rpm.
OK so speed is not the problem. I will have to concoct another method to 
mount the encoder if it is better to have it 1:1
How do others do that on a lathe seeing that you cannot mount the 
encoder on the back of the shaft. The shaft is hollow for material to 
pass through.

-- 

Regards /Groete

Marius D. Liebenberg
+27 82 698 3251
+27 12 743 6064
QQ 1767394877


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Re: [Emc-users] Spindle encoder on 7i76

2014-07-15 Thread sam sokolik
same idea..

http://electronicsam.com/images/KandT/conversion/spindle/spindleencoder.JPG
http://electronicsam.com/images/KandT/conversion/spindle/spindletiminggear.JPG

sam

On 7/15/2014 9:19 AM, Kirk Wallace wrote:
 On 07/15/2014 06:44 AM, Marius Liebenberg wrote:
 On 2014-07-15 14:00, andy pugh wrote:
 On 15 July 2014 10:44, Marius Liebenberg mar...@mastercut.co.za wrote:
 What would the highest safe RPM be for a 2048 quadrature spindle encoder
 on the 7i76.
 I have to use some pulleys to mount the encoder on my spindle and I
 would like to use what I have on the shelf if possible.
 1:1 is the right ratio, if you want to use the index from the encoder.
 The encoder on the 7i76 can do 10Mhz according to the manual, so that
 should be OK to 292,000 rpm.
 OK so speed is not the problem. I will have to concoct another method to
 mount the encoder if it is better to have it 1:1
 How do others do that on a lathe seeing that you cannot mount the
 encoder on the back of the shaft. The shaft is hollow for material to
 pass through.

 http://www.wallacecompany.com/cnc_lathe/HNC/00010-1a.jpg
 http://www.wallacecompany.com/cnc_lathe/HNC/00011-1a.jpg
 http://www.wallacecompany.com/cnc_lathe/HNC/



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Re: [Emc-users] integrator manual

2014-07-15 Thread Ed Nisley
 I M does not shows any working sample

Here's how I did it for my little Sherline mill...

Modify the Sherline control box to accept the wiring. This is an example 
for the tool length probe line, but the same thing happened for the home 
switch input:

http://softsolder.com/2010/04/11/sherline-tool-length-probe-adding-a-jack/

Connect the physical home switches to the parallel port pin and define 
the HAL wiring that connects the input pin to the homing signals:

http://softsolder.com/2010/05/11/sherline-cnc-mill-adding-home-switches/

Define the homing parameters that control the motion on all three axes:

http://softsolder.com/2010/05/12/sherline-cnc-mill-defining-home-switches/

That configuration worked back in the 2.4 days and has continued to work 
fine ever since, so it should get you reasonably close to your goal.

Hope that helps ...

-- 
Ed
softsolder.com

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Re: [Emc-users] Spindle encoder on 7i76

2014-07-15 Thread Dave Cole
Common on older large CNC lathes is a timing belt pulley that has a bore 
sufficient to slide over the hollow spindle.. then a 1:1 ratio to 
another large pulley that is mounted to an encoder.

Dave

On 7/15/2014 9:44 AM, Marius Liebenberg wrote:
 On 2014-07-15 14:00, andy pugh wrote:
 On 15 July 2014 10:44, Marius Liebenberg mar...@mastercut.co.za wrote:
 What would the highest safe RPM be for a 2048 quadrature spindle encoder
 on the 7i76.
 I have to use some pulleys to mount the encoder on my spindle and I
 would like to use what I have on the shelf if possible.
 1:1 is the right ratio, if you want to use the index from the encoder.
 The encoder on the 7i76 can do 10Mhz according to the manual, so that
 should be OK to 292,000 rpm.
 OK so speed is not the problem. I will have to concoct another method to
 mount the encoder if it is better to have it 1:1
 How do others do that on a lathe seeing that you cannot mount the
 encoder on the back of the shaft. The shaft is hollow for material to
 pass through.


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Re: [Emc-users] Spindle encoder on 7i76

2014-07-15 Thread Kirk Wallace
One more:
http://members.shaw.ca/SWSTUFF/spindle-encoder.html
http://members.shaw.ca/SWSTUFF/index.htm

On 07/15/2014 07:19 AM, Kirk Wallace wrote:
 On 07/15/2014 06:44 AM, Marius Liebenberg wrote:

 On 2014-07-15 14:00, andy pugh wrote:
 On 15 July 2014 10:44, Marius Liebenberg mar...@mastercut.co.za wrote:
 What would the highest safe RPM be for a 2048 quadrature spindle encoder
 on the 7i76.
 I have to use some pulleys to mount the encoder on my spindle and I
 would like to use what I have on the shelf if possible.
 1:1 is the right ratio, if you want to use the index from the encoder.
 The encoder on the 7i76 can do 10Mhz according to the manual, so that
 should be OK to 292,000 rpm.
 OK so speed is not the problem. I will have to concoct another method to
 mount the encoder if it is better to have it 1:1
 How do others do that on a lathe seeing that you cannot mount the
 encoder on the back of the shaft. The shaft is hollow for material to
 pass through.


 http://www.wallacecompany.com/cnc_lathe/HNC/00010-1a.jpg
 http://www.wallacecompany.com/cnc_lathe/HNC/00011-1a.jpg
 http://www.wallacecompany.com/cnc_lathe/HNC/



-- 
Kirk Wallace
http://www.wallacecompany.com/machine_shop/
http://www.wallacecompany.com/E45/

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Re: [Emc-users] integrator manual

2014-07-15 Thread Gene Heskett
On Tuesday 15 July 2014 10:03:52 Ed Nisley did opine
And Gene did reply:
  I M does not shows any working sample
 
 Here's how I did it for my little Sherline mill...
 
 Modify the Sherline control box to accept the wiring. This is an
 example for the tool length probe line, but the same thing happened
 for the home switch input:
 
 http://softsolder.com/2010/04/11/sherline-tool-length-probe-adding-a-ja
 ck/
 
 Connect the physical home switches to the parallel port pin and define
 the HAL wiring that connects the input pin to the homing signals:
 
 http://softsolder.com/2010/05/11/sherline-cnc-mill-adding-home-switches
 /
 
 Define the homing parameters that control the motion on all three axes:
 
 http://softsolder.com/2010/05/12/sherline-cnc-mill-defining-home-switch
 es/
 
 That configuration worked back in the 2.4 days and has continued to
 work fine ever since, so it should get you reasonably close to your
 goal.
 
 Hope that helps ...

It gets more complex than that Ed, he is using Mesa cards where the GPIO 
port pin number isn't generally the number you use in the hal file for a 
parport number.  I needed a spindle run/brake signal on the db25's pin 17, 
but had to consult the dmesg output to determine the actual address of 
that pin for a 5i25 interface card.  He is using a 5i20 + 2 daughter cards 
I know nothing about. I am still configuring things as I'm just now 
bringing it (the 5i25) to life.

Cheers, Gene Heskett
-- 
There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order.
-Ed Howdershelt (Author)
Genes Web page http://geneslinuxbox.net:6309/gene
US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS

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Re: [Emc-users] Spindle encoder on 7i76

2014-07-15 Thread Gene Heskett
On Tuesday 15 July 2014 10:49:39 Kirk Wallace did opine
And Gene did reply:
 One more:
 http://members.shaw.ca/SWSTUFF/spindle-encoder.html
 http://members.shaw.ca/SWSTUFF/index.htm

This is the GCode I started out with for my version.
 
 On 07/15/2014 07:19 AM, Kirk Wallace wrote:
  On 07/15/2014 06:44 AM, Marius Liebenberg wrote:
  On 2014-07-15 14:00, andy pugh wrote:
  On 15 July 2014 10:44, Marius Liebenberg mar...@mastercut.co.za 
wrote:
  What would the highest safe RPM be for a 2048 quadrature spindle
  encoder on the 7i76.
  I have to use some pulleys to mount the encoder on my spindle and
  I would like to use what I have on the shelf if possible.
  
  1:1 is the right ratio, if you want to use the index from the
  encoder. The encoder on the 7i76 can do 10Mhz according to the
  manual, so that should be OK to 292,000 rpm.
  
  OK so speed is not the problem. I will have to concoct another
  method to mount the encoder if it is better to have it 1:1
  How do others do that on a lathe seeing that you cannot mount the
  encoder on the back of the shaft. The shaft is hollow for material
  to pass through.
  
  http://www.wallacecompany.com/cnc_lathe/HNC/00010-1a.jpg
  http://www.wallacecompany.com/cnc_lathe/HNC/00011-1a.jpg
  http://www.wallacecompany.com/cnc_lathe/HNC/


Cheers, Gene Heskett
-- 
There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order.
-Ed Howdershelt (Author)
Genes Web page http://geneslinuxbox.net:6309/gene
US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS

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Re: [Emc-users] Spindle encoder on 7i76

2014-07-15 Thread sam sokolik
That is very similar to the emco lathes...  (they have a 100 line single 
channel + index.)  Works very well through the printer port.

sam
On 7/15/2014 9:49 AM, Kirk Wallace wrote:
 One more:
 http://members.shaw.ca/SWSTUFF/spindle-encoder.html
 http://members.shaw.ca/SWSTUFF/index.htm

 On 07/15/2014 07:19 AM, Kirk Wallace wrote:
 On 07/15/2014 06:44 AM, Marius Liebenberg wrote:
 On 2014-07-15 14:00, andy pugh wrote:
 On 15 July 2014 10:44, Marius Liebenberg mar...@mastercut.co.za wrote:
 What would the highest safe RPM be for a 2048 quadrature spindle encoder
 on the 7i76.
 I have to use some pulleys to mount the encoder on my spindle and I
 would like to use what I have on the shelf if possible.
 1:1 is the right ratio, if you want to use the index from the encoder.
 The encoder on the 7i76 can do 10Mhz according to the manual, so that
 should be OK to 292,000 rpm.
 OK so speed is not the problem. I will have to concoct another method to
 mount the encoder if it is better to have it 1:1
 How do others do that on a lathe seeing that you cannot mount the
 encoder on the back of the shaft. The shaft is hollow for material to
 pass through.

 http://www.wallacecompany.com/cnc_lathe/HNC/00010-1a.jpg
 http://www.wallacecompany.com/cnc_lathe/HNC/00011-1a.jpg
 http://www.wallacecompany.com/cnc_lathe/HNC/




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Re: [Emc-users] Spindle encoder on 7i76

2014-07-15 Thread Marius Liebenberg

On 2014-07-15 16:19, Dave Cole wrote:
 Common on older large CNC lathes is a timing belt pulley that has a bore
 sufficient to slide over the hollow spindle.. then a 1:1 ratio to
 another large pulley that is mounted to an encoder.
Exactly what I will have to do.
 Dave

 On 7/15/2014 9:44 AM, Marius Liebenberg wrote:
 On 2014-07-15 14:00, andy pugh wrote:
 On 15 July 2014 10:44, Marius Liebenberg mar...@mastercut.co.za wrote:
 What would the highest safe RPM be for a 2048 quadrature spindle encoder
 on the 7i76.
 I have to use some pulleys to mount the encoder on my spindle and I
 would like to use what I have on the shelf if possible.
 1:1 is the right ratio, if you want to use the index from the encoder.
 The encoder on the 7i76 can do 10Mhz according to the manual, so that
 should be OK to 292,000 rpm.
 OK so speed is not the problem. I will have to concoct another method to
 mount the encoder if it is better to have it 1:1
 How do others do that on a lathe seeing that you cannot mount the
 encoder on the back of the shaft. The shaft is hollow for material to
 pass through.

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Regards /Groete

Marius D. Liebenberg
+27 82 698 3251
+27 12 743 6064
QQ 1767394877


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Re: [Emc-users] Spindle encoder on 7i76

2014-07-15 Thread Marius Liebenberg
Clever idea fitting the pulley over the nut.

On 2014-07-15 16:27, sam sokolik wrote:
 same idea..

 http://electronicsam.com/images/KandT/conversion/spindle/spindleencoder.JPG
 http://electronicsam.com/images/KandT/conversion/spindle/spindletiminggear.JPG

 sam

 On 7/15/2014 9:19 AM, Kirk Wallace wrote:
 On 07/15/2014 06:44 AM, Marius Liebenberg wrote:
 On 2014-07-15 14:00, andy pugh wrote:
 On 15 July 2014 10:44, Marius Liebenberg mar...@mastercut.co.za wrote:
 What would the highest safe RPM be for a 2048 quadrature spindle encoder
 on the 7i76.
 I have to use some pulleys to mount the encoder on my spindle and I
 would like to use what I have on the shelf if possible.
 1:1 is the right ratio, if you want to use the index from the encoder.
 The encoder on the 7i76 can do 10Mhz according to the manual, so that
 should be OK to 292,000 rpm.
 OK so speed is not the problem. I will have to concoct another method to
 mount the encoder if it is better to have it 1:1
 How do others do that on a lathe seeing that you cannot mount the
 encoder on the back of the shaft. The shaft is hollow for material to
 pass through.

 http://www.wallacecompany.com/cnc_lathe/HNC/00010-1a.jpg
 http://www.wallacecompany.com/cnc_lathe/HNC/00011-1a.jpg
 http://www.wallacecompany.com/cnc_lathe/HNC/


 --
 Want fast and easy access to all the code in your enterprise? Index and
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-- 

Regards /Groete

Marius D. Liebenberg
+27 82 698 3251
+27 12 743 6064
QQ 1767394877


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Re: [Emc-users] Spindle encoder on 7i76

2014-07-15 Thread Marius Liebenberg
I have some spare encoders already. As I said, I want to use what is on 
the shelf already. To save a bit if cash seeing that I have to replace 
the spindle motor that burned out after one hour of working (testing 
light cuts). I had to replace it anyway with a VFD and new motor.

On 2014-07-15 16:39, Gene Heskett wrote:
 On Tuesday 15 July 2014 09:44:32 Marius Liebenberg did opine
 And Gene did reply:
 On 2014-07-15 14:00, andy pugh wrote:
 On 15 July 2014 10:44, Marius Liebenberg mar...@mastercut.co.za
 wrote:
 What would the highest safe RPM be for a 2048 quadrature spindle
 encoder on the 7i76.
 I have to use some pulleys to mount the encoder on my spindle and I
 would like to use what I have on the shelf if possible.
 1:1 is the right ratio, if you want to use the index from the
 encoder. The encoder on the 7i76 can do 10Mhz according to the
 manual, so that should be OK to 292,000 rpm.
 OK so speed is not the problem. I will have to concoct another method
 to mount the encoder if it is better to have it 1:1
 How do others do that on a lathe seeing that you cannot mount the
 encoder on the back of the shaft. The shaft is hollow for material to
 pass through.
 I did put it there on mine, Marius, but made the encoder.

 The 7x12 doesn't have a lot of room for a disk so the diameter is limited
 to about 2.75, but I made a 50 slot disk on my tightened up, ball screws
 X,Y now, mill with the slot cuts as the outside circle, with one slot cut
 another .099 longer on the inside of the circle for an index pulse. It
 just clears the casting boss that the cover bolt screws into at the
 top/rear of the cover.

 I made in eagle, a pcb to mount 3 of the honeywell HOA2001 series opto
 interrupters that have active, schmidt triggered outputs, all in a row,
 mounted across the top of the disk so that the center opto, setting
 inline, actually sees only the long slot and the curvature of the slots
 lets the outside two optos see only the slots.  The disk itself is held
 between the spindle bearing adjuster nut, and its locknut.  I have made
 several of them, with the latest and best being made from .015 thick alu
 sheet that formerly lived in a dishwasher door to allow changing its color
 to match the other appliances.  Used a 1/32 end mill.  The sacrificial
 board under the sheet MUST be flat.

 Because its thinner than the nut threads, I put a dial on it and tapped it
 with the back nut only snug to remove radial eccentricity as best I could,
 then gave the locknut one last tap to tighten.

 I did have to file the back face of the adjuster nut to remove most of the
 disks axial wobble, those nuts have pretty trashy faces.

 The disk obviously has a large central opening to clear the OD of the rear
 of the spindle.

 The pcb did wind up having some tiny pots added so as to be able to adjust
 the brightness of the opto's led's as a method to fine tune the A/B duty
 cycles to 50%.

 I can round up the latest incarnation of the disk carving code, and either
 carve the pcb or make the eagle files available if you'd like. Getting a
 board house to do it and give you plated thru holes would be handier than
 bottled beer though.

 The pcb is double-sided, and without the plated thru holes and that makes
 soldering in the parts a bit difficult.  With a bit more room it would be
 better with 3 individual mounts though, much more leeway to adjust for
 perfect quadrature timings that way. Gross adjustments in the timing could
 be done by changing the number of slots of course, I started with 39, but
 then found the next closest at 50 slots actually gave better timing.

 The Gcode for the disk can easily be massaged for a larger disk if you
 have room after the change gears are removed as you won't need those
 anymore.  I started out with code that made about a 7 disk that I found
 on the net and modified it to suit.  Its maybe 125 lines of gcode.

 Cheers, Gene Heskett

-- 

Regards /Groete

Marius D. Liebenberg
+27 82 698 3251
+27 12 743 6064
QQ 1767394877


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[Emc-users] edge module problem

2014-07-15 Thread Gene Heskett
Greetings everybody;

In this new configuration to use a 5i25 in place of the parport, I have 
now set the edge.N.out-width-ns to 5000 in hopes I could see the pulse 
with a halmeter.

They are, all 3 of them addf'd to the 30 u-sec base-thread, but I have 
tried the servo-thread with the same results.  The inputs are changing 
state according to the axis spindle direction buttons. This signal is 
motion.spindle reverse  But the outputs, both normal and inverted, never 
change state.  Its exactly as if they have not been addf'd.  Without this 
logic, I have no spindle.

Has anyone ever seen this?  I'm fresh out of clues (again).

Cheers, Gene Heskett
-- 
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Re: [Emc-users] Spindle encoder on 7i76

2014-07-15 Thread Gene Heskett
On Tuesday 15 July 2014 12:12:38 Marius Liebenberg did opine
And Gene did reply below:

 I have some spare encoders already. As I said, I want to use what is on
 the shelf already. To save a bit if cash seeing that I have to replace
 the spindle motor that burned out after one hour of working (testing
 light cuts). I had to replace it anyway with a VFD and new motor.
 
I didn't have anything on the shelf, so all I was out was a few busted 
1/32 mills and time.  Other than buying a brass door kickplate, which 
turned out to be quite hard on mills, everything else was found 
material.

I'm pretty cheap, and time (until I fall over the final time) is what I 
have plenty of, being retired.  And it works very well.  No worries about 
a drive belt jumping a cog in the middle of a G33.1 operation thats doing 
it in a half turn per cycle peck loop.

Cheers, Gene Heskett
-- 
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Re: [Emc-users] edge module problem

2014-07-15 Thread andy pugh
On 15 July 2014 17:47, Gene Heskett ghesk...@wdtv.com wrote:

 In this new configuration to use a 5i25 in place of the parport, I have
 now set the edge.N.out-width-ns to 5000 in hopes I could see the pulse
 with a halmeter.

50mS is still not very long for Halmeter.
Have you tried Halscope?


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Re: [Emc-users] edge module problem

2014-07-15 Thread Philipp Burch
Hi Gene!

On 15.07.2014 18:47, Gene Heskett wrote:
 Greetings everybody;
 
 In this new configuration to use a 5i25 in place of the parport, I have 
 now set the edge.N.out-width-ns to 5000 in hopes I could see the pulse 
 with a halmeter.
 [...]

5000ns are 50ms, depending on the update rate of the halmeter (user
component) and your screen, this can easily be missed. Rather try
something like 5 (0.5s) or even more. No more than 2s, though,
as this would overflow the s32.

You could then also watch the time-left-ns output, which should give you
a decreasing counter. Or, as suggested by andy, use the halscope.

Cheers,
Philipp



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Re: [Emc-users] edge module problem

2014-07-15 Thread Gene Heskett
On Tuesday 15 July 2014 13:05:36 andy pugh did opine
And Gene did reply:
 On 15 July 2014 17:47, Gene Heskett ghesk...@wdtv.com wrote:
  In this new configuration to use a 5i25 in place of the parport, I
  have now set the edge.N.out-width-ns to 5000 in hopes I could
  see the pulse with a halmeter.
 
 50mS is still not very long for Halmeter.
 Have you tried Halscope?

Humm, running the all software config that works, I can see it flicker by 
at 5ms pretty reliably.

This isn't working at all, but just for SG I'll add a couple more 00's to 
that, making it 5 seconds.  BRB.  You're right, now I can see it.  But 
50ms, with its position in the addf sequence should be enough since I am 
running the servo loop at 2000hz.  So back to the troubleshooting.  Thanks 
Andy.

Cheers, Gene Heskett
-- 
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Genes Web page http://geneslinuxbox.net:6309/gene
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Re: [Emc-users] edge module problem

2014-07-15 Thread Gene Heskett
On Tuesday 15 July 2014 13:09:06 Philipp Burch did opine
And Gene did reply:
 Hi Gene!
 
 On 15.07.2014 18:47, Gene Heskett wrote:
  Greetings everybody;
  
  In this new configuration to use a 5i25 in place of the parport, I
  have now set the edge.N.out-width-ns to 5000 in hopes I could
  see the pulse with a halmeter.
  [...]
 
 5000ns are 50ms, depending on the update rate of the halmeter (user
 component) and your screen, this can easily be missed. Rather try
 something like 5 (0.5s) or even more. No more than 2s, though,
 as this would overflow the s32.
 
Hum, I thought what I saw was less than 5 secs, 3 maybe at the most. I'll 
go back to 2 secs to continue traipsing thru all this code.

 You could then also watch the time-left-ns output, which should give
 you a decreasing counter. Or, as suggested by andy, use the halscope.
 
 Cheers,
 Philipp


Cheers, Gene Heskett
-- 
There are four boxes to be used in defense of liberty:
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Genes Web page http://geneslinuxbox.net:6309/gene
US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS

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Re: [Emc-users] integrator manual

2014-07-15 Thread a k
about code
from hal


net home-switch = hm2_[HOSTMOT2](BOARD).0.gpio.025.in_not
net home-switch = axis.0.home-sw-in
net home-switch = axis.1.home-sw-in
net home-switch = axis.2.home-sw-in
/
interesting explanation about pin connection


each of the three axes have their own home switch.  All
# home switches are connected to GPIO 25, though hostmot2 boards generally
# have enough GPIO pins to put each axis' home switch on its own pin.

how it can work  All home switches are connected to GPIO 25???



On Tue, Jul 15, 2014 at 7:50 AM, Gene Heskett ghesk...@wdtv.com wrote:

 On Tuesday 15 July 2014 10:03:52 Ed Nisley did opine
 And Gene did reply:
   I M does not shows any working sample
 
  Here's how I did it for my little Sherline mill...
 
  Modify the Sherline control box to accept the wiring. This is an
  example for the tool length probe line, but the same thing happened
  for the home switch input:
 
  http://softsolder.com/2010/04/11/sherline-tool-length-probe-adding-a-ja
  ck/
 
  Connect the physical home switches to the parallel port pin and define
  the HAL wiring that connects the input pin to the homing signals:
 
  http://softsolder.com/2010/05/11/sherline-cnc-mill-adding-home-switches
  /
 
  Define the homing parameters that control the motion on all three axes:
 
  http://softsolder.com/2010/05/12/sherline-cnc-mill-defining-home-switch
  es/
 
  That configuration worked back in the 2.4 days and has continued to
  work fine ever since, so it should get you reasonably close to your
  goal.
 
  Hope that helps ...

 It gets more complex than that Ed, he is using Mesa cards where the GPIO
 port pin number isn't generally the number you use in the hal file for a
 parport number.  I needed a spindle run/brake signal on the db25's pin 17,
 but had to consult the dmesg output to determine the actual address of
 that pin for a 5i25 interface card.  He is using a 5i20 + 2 daughter cards
 I know nothing about. I am still configuring things as I'm just now
 bringing it (the 5i25) to life.

 Cheers, Gene Heskett
 --
 There are four boxes to be used in defense of liberty:
  soap, ballot, jury, and ammo. Please use in that order.
 -Ed Howdershelt (Author)
 Genes Web page http://geneslinuxbox.net:6309/gene
 US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS


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Re: [Emc-users] integrator manual

2014-07-15 Thread Philipp Burch
Hi Aram!

On 15.07.2014 21:38, a k wrote:
 about code
 from hal
 
 
 net home-switch = hm2_[HOSTMOT2](BOARD).0.gpio.025.in_not
 net home-switch = axis.0.home-sw-in
 net home-switch = axis.1.home-sw-in
 net home-switch = axis.2.home-sw-in
 /
 interesting explanation about pin connection
 
 
 each of the three axes have their own home switch.  All
 # home switches are connected to GPIO 25, though hostmot2 boards generally
 # have enough GPIO pins to put each axis' home switch on its own pin.
 
 how it can work  All home switches are connected to GPIO 25???
 

Yeah, why not? As long as the joints (aka axes) are homed one after the
other, this is no problem. You won't be able to home multiple joints at
once with this configuration, though. Check the ini parameter HOME_SEQUENCE.

Regards,
Philipp



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Re: [Emc-users] integrator manual

2014-07-15 Thread John Thornton
http://www.linuxcnc.org/docs/2.6/html/config/ini_homing.html#_home_is_shared

On 7/15/2014 2:38 PM, a k wrote:
 about code
 from hal


 net home-switch = hm2_[HOSTMOT2](BOARD).0.gpio.025.in_not
 net home-switch = axis.0.home-sw-in
 net home-switch = axis.1.home-sw-in
 net home-switch = axis.2.home-sw-in
 /
 interesting explanation about pin connection
 

 each of the three axes have their own home switch.  All
 # home switches are connected to GPIO 25, though hostmot2 boards generally
 # have enough GPIO pins to put each axis' home switch on its own pin.
 
 how it can work  All home switches are connected to GPIO 25???



 On Tue, Jul 15, 2014 at 7:50 AM, Gene Heskett ghesk...@wdtv.com wrote:

 On Tuesday 15 July 2014 10:03:52 Ed Nisley did opine
 And Gene did reply:
 I M does not shows any working sample
 Here's how I did it for my little Sherline mill...

 Modify the Sherline control box to accept the wiring. This is an
 example for the tool length probe line, but the same thing happened
 for the home switch input:

 http://softsolder.com/2010/04/11/sherline-tool-length-probe-adding-a-ja
 ck/

 Connect the physical home switches to the parallel port pin and define
 the HAL wiring that connects the input pin to the homing signals:

 http://softsolder.com/2010/05/11/sherline-cnc-mill-adding-home-switches
 /

 Define the homing parameters that control the motion on all three axes:

 http://softsolder.com/2010/05/12/sherline-cnc-mill-defining-home-switch
 es/

 That configuration worked back in the 2.4 days and has continued to
 work fine ever since, so it should get you reasonably close to your
 goal.

 Hope that helps ...
 It gets more complex than that Ed, he is using Mesa cards where the GPIO
 port pin number isn't generally the number you use in the hal file for a
 parport number.  I needed a spindle run/brake signal on the db25's pin 17,
 but had to consult the dmesg output to determine the actual address of
 that pin for a 5i25 interface card.  He is using a 5i20 + 2 daughter cards
 I know nothing about. I am still configuring things as I'm just now
 bringing it (the 5i25) to life.

 Cheers, Gene Heskett
 --
 There are four boxes to be used in defense of liberty:
   soap, ballot, jury, and ammo. Please use in that order.
 -Ed Howdershelt (Author)
 Genes Web page http://geneslinuxbox.net:6309/gene
 US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS


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Re: [Emc-users] integrator manual

2014-07-15 Thread Gene Heskett
On Tuesday 15 July 2014 15:38:42 a k did opine
And Gene did reply:
 about code
 from hal
 
 
 net home-switch = hm2_[HOSTMOT2](BOARD).0.gpio.025.in_not
 net home-switch = axis.0.home-sw-in
 net home-switch = axis.1.home-sw-in
 net home-switch = axis.2.home-sw-in
 /
 interesting explanation about pin connection
 
 
 each of the three axes have their own home switch.  All
 # home switches are connected to GPIO 25, though hostmot2 boards
 generally # have enough GPIO pins to put each axis' home switch on its
 own pin. 
 how it can work  All home switches are connected to GPIO 25???

Either all switches are wired n.c. and in series, or all wired n.o. and in 
parallel.  lcnc contains logic that will not move anything if any of the 
switches is already tripped when you hit ctrl+home.  You must have the 
statement in the .ini file for each axis HOME_IS_SHARED = true, and 
HOME_SEQUENCE 0|1|2|3 (one of each sets the homing sequence starting with 
0) which brings that logic into play.
 
 On Tue, Jul 15, 2014 at 7:50 AM, Gene Heskett ghesk...@wdtv.com wrote:
  On Tuesday 15 July 2014 10:03:52 Ed Nisley did opine
  
  And Gene did reply:
I M does not shows any working sample
   
   Here's how I did it for my little Sherline mill...
   
   Modify the Sherline control box to accept the wiring. This is an
   example for the tool length probe line, but the same thing happened
   for the home switch input:
   
   http://softsolder.com/2010/04/11/sherline-tool-length-probe-adding-
   a-ja ck/
   
   Connect the physical home switches to the parallel port pin and
   define the HAL wiring that connects the input pin to the homing
   signals:
   
   http://softsolder.com/2010/05/11/sherline-cnc-mill-adding-home-swit
   ches /
   
   Define the homing parameters that control the motion on all three
   axes:
   
   http://softsolder.com/2010/05/12/sherline-cnc-mill-defining-home-sw
   itch es/
   
   That configuration worked back in the 2.4 days and has continued to
   work fine ever since, so it should get you reasonably close to your
   goal.
   
   Hope that helps ...
  
  It gets more complex than that Ed, he is using Mesa cards where the
  GPIO port pin number isn't generally the number you use in the hal
  file for a parport number.  I needed a spindle run/brake signal on
  the db25's pin 17, but had to consult the dmesg output to determine
  the actual address of that pin for a 5i25 interface card.  He is
  using a 5i20 + 2 daughter cards I know nothing about. I am still
  configuring things as I'm just now bringing it (the 5i25) to life.
  
  Cheers, Gene Heskett
  --
  
  There are four boxes to be used in defense of liberty:
   soap, ballot, jury, and ammo. Please use in that order.
  
  -Ed Howdershelt (Author)
  Genes Web page http://geneslinuxbox.net:6309/gene
  US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS
  
  
  -
  - Want fast and easy access to all the code in your
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Cheers, Gene Heskett
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 soap, ballot, jury, and ammo. Please use in that order.
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Re: [Emc-users] integrator manual

2014-07-15 Thread a k
about
3.9. HOME_SEQUENCE

the single way - wiring to one pin can be done if there will be enforced
sequence --- first home X, second home Y and third home Z.
To guaranty that one axis at the any given moment can be homed
if so than how do that? option only 0 and 1
how to mark each axis - there are 3 or more axis ?


On Tue, Jul 15, 2014 at 1:26 PM, John Thornton bjt...@gmail.com wrote:


 http://www.linuxcnc.org/docs/2.6/html/config/ini_homing.html#_home_is_shared

 On 7/15/2014 2:38 PM, a k wrote:
  about code
  from hal
 
 
  net home-switch = hm2_[HOSTMOT2](BOARD).0.gpio.025.in_not
  net home-switch = axis.0.home-sw-in
  net home-switch = axis.1.home-sw-in
  net home-switch = axis.2.home-sw-in
  /
  interesting explanation about pin connection
  
 
  each of the three axes have their own home switch.  All
  # home switches are connected to GPIO 25, though hostmot2 boards
 generally
  # have enough GPIO pins to put each axis' home switch on its own pin.
  
  how it can work  All home switches are connected to GPIO 25???
 
 
 
  On Tue, Jul 15, 2014 at 7:50 AM, Gene Heskett ghesk...@wdtv.com wrote:
 
  On Tuesday 15 July 2014 10:03:52 Ed Nisley did opine
  And Gene did reply:
  I M does not shows any working sample
  Here's how I did it for my little Sherline mill...
 
  Modify the Sherline control box to accept the wiring. This is an
  example for the tool length probe line, but the same thing happened
  for the home switch input:
 
 
 http://softsolder.com/2010/04/11/sherline-tool-length-probe-adding-a-ja
  ck/
 
  Connect the physical home switches to the parallel port pin and define
  the HAL wiring that connects the input pin to the homing signals:
 
 
 http://softsolder.com/2010/05/11/sherline-cnc-mill-adding-home-switches
  /
 
  Define the homing parameters that control the motion on all three axes:
 
 
 http://softsolder.com/2010/05/12/sherline-cnc-mill-defining-home-switch
  es/
 
  That configuration worked back in the 2.4 days and has continued to
  work fine ever since, so it should get you reasonably close to your
  goal.
 
  Hope that helps ...
  It gets more complex than that Ed, he is using Mesa cards where the GPIO
  port pin number isn't generally the number you use in the hal file for a
  parport number.  I needed a spindle run/brake signal on the db25's pin
 17,
  but had to consult the dmesg output to determine the actual address of
  that pin for a 5i25 interface card.  He is using a 5i20 + 2 daughter
 cards
  I know nothing about. I am still configuring things as I'm just now
  bringing it (the 5i25) to life.
 
  Cheers, Gene Heskett
  --
  There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order.
  -Ed Howdershelt (Author)
  Genes Web page http://geneslinuxbox.net:6309/gene
  US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS
 
 
 
 --
  Want fast and easy access to all the code in your enterprise? Index and
  search up to 200,000 lines of code with a free copy of Black Duck
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  search on Ohloh, the Black Duck Open Hub! Try it now.
  http://p.sf.net/sfu/bds
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  https://lists.sourceforge.net/lists/listinfo/emc-users
 
 
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Re: [Emc-users] integrator manual

2014-07-15 Thread a k
to be sure --HOME_SEQUENCE 0|1|2|3
0|1|2|3- this set sequence for axis?
like 0-x first, 1-y second   etc?


On Tue, Jul 15, 2014 at 2:16 PM, Gene Heskett ghesk...@wdtv.com wrote:

 On Tuesday 15 July 2014 15:38:42 a k did opine
 And Gene did reply:
  about code
  from hal
 
 
  net home-switch = hm2_[HOSTMOT2](BOARD).0.gpio.025.in_not
  net home-switch = axis.0.home-sw-in
  net home-switch = axis.1.home-sw-in
  net home-switch = axis.2.home-sw-in
  /
  interesting explanation about pin connection
  
 
  each of the three axes have their own home switch.  All
  # home switches are connected to GPIO 25, though hostmot2 boards
  generally # have enough GPIO pins to put each axis' home switch on its
  own pin. 
  how it can work  All home switches are connected to GPIO 25???

 Either all switches are wired n.c. and in series, or all wired n.o. and in
 parallel.  lcnc contains logic that will not move anything if any of the
 switches is already tripped when you hit ctrl+home.  You must have the
 statement in the .ini file for each axis HOME_IS_SHARED = true, and
 HOME_SEQUENCE 0|1|2|3 (one of each sets the homing sequence starting with
 0) which brings that logic into play.

  On Tue, Jul 15, 2014 at 7:50 AM, Gene Heskett ghesk...@wdtv.com wrote:
   On Tuesday 15 July 2014 10:03:52 Ed Nisley did opine
  
   And Gene did reply:
 I M does not shows any working sample
   
Here's how I did it for my little Sherline mill...
   
Modify the Sherline control box to accept the wiring. This is an
example for the tool length probe line, but the same thing happened
for the home switch input:
   
http://softsolder.com/2010/04/11/sherline-tool-length-probe-adding-
a-ja ck/
   
Connect the physical home switches to the parallel port pin and
define the HAL wiring that connects the input pin to the homing
signals:
   
http://softsolder.com/2010/05/11/sherline-cnc-mill-adding-home-swit
ches /
   
Define the homing parameters that control the motion on all three
axes:
   
http://softsolder.com/2010/05/12/sherline-cnc-mill-defining-home-sw
itch es/
   
That configuration worked back in the 2.4 days and has continued to
work fine ever since, so it should get you reasonably close to your
goal.
   
Hope that helps ...
  
   It gets more complex than that Ed, he is using Mesa cards where the
   GPIO port pin number isn't generally the number you use in the hal
   file for a parport number.  I needed a spindle run/brake signal on
   the db25's pin 17, but had to consult the dmesg output to determine
   the actual address of that pin for a 5i25 interface card.  He is
   using a 5i20 + 2 daughter cards I know nothing about. I am still
   configuring things as I'm just now bringing it (the 5i25) to life.
  
   Cheers, Gene Heskett
   --
  
   There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order.
  
   -Ed Howdershelt (Author)
   Genes Web page http://geneslinuxbox.net:6309/gene
   US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS
  
  
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 Cheers, Gene Heskett
 --
 There are four boxes to be used in defense of liberty:
  soap, ballot, jury, and ammo. Please use in that order.
 -Ed Howdershelt (Author)
 Genes Web page http://geneslinuxbox.net:6309/gene
 US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS


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Re: [Emc-users] integrator manual

2014-07-15 Thread Dave Cole
Yes...

Doing that is very common on small machines.

Dave

On 7/15/2014 5:26 PM, a k wrote:
 to be sure --HOME_SEQUENCE 0|1|2|3
 0|1|2|3- this set sequence for axis?
 like 0-x first, 1-y second   etc?


 On Tue, Jul 15, 2014 at 2:16 PM, Gene Heskett ghesk...@wdtv.com wrote:

 On Tuesday 15 July 2014 15:38:42 a k did opine
 And Gene did reply:
 about code
 from hal


 net home-switch = hm2_[HOSTMOT2](BOARD).0.gpio.025.in_not
 net home-switch = axis.0.home-sw-in
 net home-switch = axis.1.home-sw-in
 net home-switch = axis.2.home-sw-in
 /
 interesting explanation about pin connection
 

 each of the three axes have their own home switch.  All
 # home switches are connected to GPIO 25, though hostmot2 boards
 generally # have enough GPIO pins to put each axis' home switch on its
 own pin. 
 how it can work  All home switches are connected to GPIO 25???
 Either all switches are wired n.c. and in series, or all wired n.o. and in
 parallel.  lcnc contains logic that will not move anything if any of the
 switches is already tripped when you hit ctrl+home.  You must have the
 statement in the .ini file for each axis HOME_IS_SHARED = true, and
 HOME_SEQUENCE 0|1|2|3 (one of each sets the homing sequence starting with
 0) which brings that logic into play.

 On Tue, Jul 15, 2014 at 7:50 AM, Gene Heskett ghesk...@wdtv.com wrote:
 On Tuesday 15 July 2014 10:03:52 Ed Nisley did opine

 And Gene did reply:
 I M does not shows any working sample
 Here's how I did it for my little Sherline mill...

 Modify the Sherline control box to accept the wiring. This is an
 example for the tool length probe line, but the same thing happened
 for the home switch input:

 http://softsolder.com/2010/04/11/sherline-tool-length-probe-adding-
 a-ja ck/

 Connect the physical home switches to the parallel port pin and
 define the HAL wiring that connects the input pin to the homing
 signals:

 http://softsolder.com/2010/05/11/sherline-cnc-mill-adding-home-swit
 ches /

 Define the homing parameters that control the motion on all three
 axes:

 http://softsolder.com/2010/05/12/sherline-cnc-mill-defining-home-sw
 itch es/

 That configuration worked back in the 2.4 days and has continued to
 work fine ever since, so it should get you reasonably close to your
 goal.

 Hope that helps ...
 It gets more complex than that Ed, he is using Mesa cards where the
 GPIO port pin number isn't generally the number you use in the hal
 file for a parport number.  I needed a spindle run/brake signal on
 the db25's pin 17, but had to consult the dmesg output to determine
 the actual address of that pin for a 5i25 interface card.  He is
 using a 5i20 + 2 daughter cards I know nothing about. I am still
 configuring things as I'm just now bringing it (the 5i25) to life.

 Cheers, Gene Heskett
 --

 There are four boxes to be used in defense of liberty:
   soap, ballot, jury, and ammo. Please use in that order.

 -Ed Howdershelt (Author)
 Genes Web page http://geneslinuxbox.net:6309/gene
 US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS


 -
 - Want fast and easy access to all the code in your
 enterprise? Index and search up to 200,000 lines of code with a free
 copy of Black Duck Code Sight - the same software that powers the
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 http://p.sf.net/sfu/bds
 ___
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 Emc-users@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/emc-users
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 Cheers, Gene Heskett
 --
 There are four boxes to be used in defense of liberty:
   soap, ballot, jury, and ammo. Please use in that order.
 -Ed Howdershelt (Author)
 Genes Web page http://geneslinuxbox.net:6309/gene
 US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS


 --
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[Emc-users] OT: Mazak QT 20 T1 with Fanuc spindle drive problem

2014-07-15 Thread Leonardo Marsaglia
Hello to everybody.

I know this has nothing to do with LinuxCNC but here there is really  smart
and kind people so I think you can help me out as usual :).

We have an old Mazak QT 20 with a mazatrol T1 controller, and a Fanuc model
15 drive I think. The number on the drive board is A20B - 0009 - 0534.

From time to time when I started up the lathe in the morning I got the
ALARM 55 MOTOR OVERLOAD. This happened usually in days with high humidity.
When this happened I ventilated all the cabinetes, wait for a few minutes
and then reconnected the main power switch and the lathe was ready to work
again and the alarm didn't tripped anymore.

Yesterday the alarm showed up again, but this time more frequently, and
it's impossible to work with the machine. Today the same, I can't reset the
alarm, not even switching off the general switch like I always do. There
are four leds in the fanuc drive board numbered 2 - 4 - 8 - 12 I think. The
8 and 12 are glowing. I don't have any documentation about this drive, so I
don't know for sure where to start.

I have to mention that the first day this problem started we had a problem
with one phase in our workshop. The phase was still there, but it couldn't
be detected by a multimeter, anyway the machines were working ok. The
problem was a faulty lamp that was almost shorted. A strange case, in fact
when I used the multimeter to check that phase it showed 0 volts with the
tip of the multimeter in contact, and when I retired the tip, for a
fraction of a second the voltage raised in the multimeter and then droppend
again. I suspect that this has something to do with the malfunction on my
lathe, but I'm not sure, anyway I think it's important to mention it. Now
the phase problem is corrected, but the lathe still has the alarm.

Well, that's the problem and I don't know where to start (besides from
checking fuses) because I don't have any documentation about this drive.
I'm even thinking in the worst case scenario of replacing the drive, but I
need a hand with that too to identify the wires so the control can work.

I hope you can give me a hand to diagnose the problem so I can take
measures about it because I need this machine to work.

Sorry for the long text by I like to be explicit about the problem!

Thanks as always for your help!



-- 
*Leonardo Marsaglia*.
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Re: [Emc-users] OT: Mazak QT 20 T1 with Fanuc spindle drive problem

2014-07-15 Thread Dave Cole
I've been told before by an industrial repair shop that usually the 
first parts to fail are the electrolytic caps on the old drive boards.
Their standard was to replace all of the electrolytics initially and 
then retest the board.  The logic being that if they were not bad, they 
were living on the edge.

Dave



On 7/15/2014 7:23 PM, Leonardo Marsaglia wrote:
 Hello to everybody.

 I know this has nothing to do with LinuxCNC but here there is really  smart
 and kind people so I think you can help me out as usual :).

 We have an old Mazak QT 20 with a mazatrol T1 controller, and a Fanuc model
 15 drive I think. The number on the drive board is A20B - 0009 - 0534.

 From time to time when I started up the lathe in the morning I got the
 ALARM 55 MOTOR OVERLOAD. This happened usually in days with high humidity.
 When this happened I ventilated all the cabinetes, wait for a few minutes
 and then reconnected the main power switch and the lathe was ready to work
 again and the alarm didn't tripped anymore.

 Yesterday the alarm showed up again, but this time more frequently, and
 it's impossible to work with the machine. Today the same, I can't reset the
 alarm, not even switching off the general switch like I always do. There
 are four leds in the fanuc drive board numbered 2 - 4 - 8 - 12 I think. The
 8 and 12 are glowing. I don't have any documentation about this drive, so I
 don't know for sure where to start.

 I have to mention that the first day this problem started we had a problem
 with one phase in our workshop. The phase was still there, but it couldn't
 be detected by a multimeter, anyway the machines were working ok. The
 problem was a faulty lamp that was almost shorted. A strange case, in fact
 when I used the multimeter to check that phase it showed 0 volts with the
 tip of the multimeter in contact, and when I retired the tip, for a
 fraction of a second the voltage raised in the multimeter and then droppend
 again. I suspect that this has something to do with the malfunction on my
 lathe, but I'm not sure, anyway I think it's important to mention it. Now
 the phase problem is corrected, but the lathe still has the alarm.

 Well, that's the problem and I don't know where to start (besides from
 checking fuses) because I don't have any documentation about this drive.
 I'm even thinking in the worst case scenario of replacing the drive, but I
 need a hand with that too to identify the wires so the control can work.

 I hope you can give me a hand to diagnose the problem so I can take
 measures about it because I need this machine to work.

 Sorry for the long text by I like to be explicit about the problem!

 Thanks as always for your help!




--
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Re: [Emc-users] OT: Mazak QT 20 T1 with Fanuc spindle drive problem

2014-07-15 Thread Leonardo Marsaglia
2014-07-15 20:52 GMT-03:00 Dave Cole linuxcncro...@gmail.com:

 I've been told before by an industrial repair shop that usually the
 first parts to fail are the electrolytic caps on the old drive boards.
 Their standard was to replace all of the electrolytics initially and
 then retest the board.  The logic being that if they were not bad, they
 were living on the edge.


Hello Dave, and thanks for the quick answer.

There are some big electrolytic caps inside the cabinet (80 mm diameter and
180 mm long approx). I can replace them easy but is there a way to know if
they are faulty before replace them?

My brother has a digital oscilloscope that can measure capacitance but I
don't know if that's ok for this kind of capacitors. But I guess if they
are in the range the oscilloscope can measure I might work.


-- 
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Re: [Emc-users] OT: Mazak QT 20 T1 with Fanuc spindle drive problem

2014-07-15 Thread robert - Innovative-RC
hi there

is there any alarm lamps lit on the fanuc boards for the spindle drive?

does the motor try to turn/move
if it does some odd pulsing/stutter moving most of the time it relateas 
to the PG in side the motor for the speed feedback.

abit more info might help alot more in this error state. does it happen 
when you turn the main power on? or when you release the machine from estop?




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Re: [Emc-users] OT: Mazak QT 20 T1 with Fanuc spindle drive problem

2014-07-15 Thread Leonardo Marsaglia
2014-07-15 20:47 GMT-03:00 robert - Innovative-RC rob...@innovative-rc.com
:


 is there any alarm lamps lit on the fanuc boards for the spindle drive?


Hello Robert.

There are four leds numbered 1 2 4 8 (I got it wrong before). The number 4
and 8 are glowing at the time the alarm is tripped.



 does the motor try to turn/move
 if it does some odd pulsing/stutter moving most of the time it relateas
 to the PG in side the motor for the speed feedback.


The motor cannot be turned at all while the alarm is on because the machine
remains in e-stop condition. When I was turning the spindle at 300 rpm
today, in one of the short moments the alarm didn't trip I could notice the
spindle was a little weird, like it couldn't kept the 300 rpm, and tried to
stop, a few seconds later the alarm tripped again. Sometimes I can use it
with no problems, but then again the alarm.

I don't know if the pulse generator is inside the motor, because there's a
timing pulley driving what I believe is a tachometer just over the spindle.
This is what the lathe uses for threading and measuring spindle speed.



 abit more info might help alot more in this error state. does it happen
 when you turn the main power on? or when you release the machine from
 estop?



In general the alarm showed at the moment you turn on the machine, but this
time it happened even after I started to work.







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Re: [Emc-users] OT: Mazak QT 20 T1 with Fanuc spindle drive problem

2014-07-15 Thread Dave Cole
I doubt that you can effectively test electrolytic power caps without 
placing them under a similar voltage situation.
Be careful as the DC bus voltage in a drive like that can easily be 
lethal.  Make sure your test equipment can handle the voltage.

Google testing electrolytic capacitor and that may get you started.

Dave

On 7/15/2014 7:59 PM, Leonardo Marsaglia wrote:
 2014-07-15 20:52 GMT-03:00 Dave Cole linuxcncro...@gmail.com:

 I've been told before by an industrial repair shop that usually the
 first parts to fail are the electrolytic caps on the old drive boards.
 Their standard was to replace all of the electrolytics initially and
 then retest the board.  The logic being that if they were not bad, they
 were living on the edge.

 Hello Dave, and thanks for the quick answer.

 There are some big electrolytic caps inside the cabinet (80 mm diameter and
 180 mm long approx). I can replace them easy but is there a way to know if
 they are faulty before replace them?

 My brother has a digital oscilloscope that can measure capacitance but I
 don't know if that's ok for this kind of capacitors. But I guess if they
 are in the range the oscilloscope can measure I might work.



--
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Re: [Emc-users] OT: Mazak QT 20 T1 with Fanuc spindle drive problem

2014-07-15 Thread Leonardo Marsaglia
2014-07-15 22:15 GMT-03:00 Dave Cole linuxcncro...@gmail.com:

 I doubt that you can effectively test electrolytic power caps without
 placing them under a similar voltage situation.
 Be careful as the DC bus voltage in a drive like that can easily be
 lethal.  Make sure your test equipment can handle the voltage.

 Google testing electrolytic capacitor and that may get you started.


Thank you dave for your advices, I'm gonna check out some google results to
see if I can test them before replacing it. In the mean time I'm sending
emails to Fanuc to see if there is an easy way to know what's going on with
the driver.




-- 
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Re: [Emc-users] OT: Mazak QT 20 T1 with Fanuc spindle drive problem

2014-07-15 Thread Stuart Stevenson
www.fanucworld.com is a very good resource
On Jul 15, 2014 9:02 PM, Leonardo Marsaglia leonardomarsagli...@gmail.com
wrote:

 2014-07-15 22:15 GMT-03:00 Dave Cole linuxcncro...@gmail.com:

  I doubt that you can effectively test electrolytic power caps without
  placing them under a similar voltage situation.
  Be careful as the DC bus voltage in a drive like that can easily be
  lethal.  Make sure your test equipment can handle the voltage.
 
  Google testing electrolytic capacitor and that may get you started.
 

 Thank you dave for your advices, I'm gonna check out some google results to
 see if I can test them before replacing it. In the mean time I'm sending
 emails to Fanuc to see if there is an easy way to know what's going on with
 the driver.




 --
 *Leonardo Marsaglia*.

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Re: [Emc-users] OT: Mazak QT 20 T1 with Fanuc spindle drive problem

2014-07-15 Thread Andy
Leonardo, I recently had a problem very similar to this with my Kira 
machining center.  The light combination indicated a low voltage problem 
and when checked every way I knew how, it wasn't there.  So I suspected 
the drive and sent it away for an expensive repair and got perilously 
close to some critical deadlines waiting for its return.  The repair 
company (Galco) didn't find anything wrong but replaced the caps and 
other miscellaneous small parts and sent it back.  I still had the 
faulting at intermittent times and was back to square one.

Then it hit me like a ton of bricks - I had recently replaced an air 
compressor and I could trace the faults, when they did occur, to a 
voltage drop when the compressor kicked in.  So I decided I should 
either get a soft-starter or a VFD for the compressor.  I ended up 
sourcing a Schneider soft-start from Newark at about $230, and it took a 
phone call to schneider to find out what the documentation lacked but it 
was an easy wiring job and there are no more Kira problems.

I realize this may have nothing to do with your problem except perhaps 
to alert you to think about anything that may be contributing to your 
issue.  In my case, my Kira was doing exactly what it was supposed to do 
- fault if that voltage went low.

Andy

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