Re: [Emc-users] Need help with X200 VFD modbus

[dannym]

Well I spent several hours on this now.  I do see the format is wrong, I 
changed to:

loadusr -W wj200_vfd  baud=19200 

But I've got it on a scope and it's still 9600 baud.  And if I change it to 
"baud=hahahhaha", there's no error for it being a non-number either.

Could the wj200_vfd code have a bug in accepting arguments?

Danny

 dan...@austin.rr.com wrote: 
> OK, I am unclear on how baud rate gets set.  I see the .c code has "void 
> userinit()", but I don't know how that gets called.
> 
> I had tried "loadusr -W wj200_vfd baud 19200"  (kind of random stab) and 
> thought I was setting the baud, but I changed "baud" to gibberish here 
> ("bxyzz") and no error is generated.  
> 
> So, chances are I'm not setting the baud rate- how do I do that?
> 
> 
> Danny
> 
>  dan...@austin.rr.com wrote: 
> > Not a stupid question at all- I literally didn't do more than I said.  
> > 
> > I will try this ASAP.
> > 
> > Do you know how to handle a "watchdog" that continuously checks whether the 
> > VFD is running?
> > 
> > Danny
> > 
> >  Philipp Burch  wrote: 
> > > Hi Danny!
> > > 
> > > On 29.02.2016 08:15, Danny Miller wrote:
> > > > [...]
> > > > 
> > > > loadusr -W wj200_vfd baud 19200
> > > > #default slave address is 1
> > > > setp wj200-vfd.0.mbslaveaddr 1
> > > > setp wj200-vfd.0.commanded-frequency 60
> > > > # connect to wj200-vfd pins
> > > > net spindle-on wj200-vfd.0.run
> > > > net spindle-cw wj200-vfd.0.reverse
> > > > net spindle-at-speed wj200-vfd.0.is-at-speed
> > > > 
> > > 
> > > Maybe it's a stupid question, but: Have you also connected the nets
> > > spindle-on, spindle-cw and spindle-at-speed to the motion component?
> > > 
> > > I.e. something like
> > > 
> > > net spindle-on motion.spindle-on
> > > net spindle-cw motion.spindle-forward
> > > net spindle-at-speed motion.spindle-at-speed
> > > 
> > > See: http://linuxcnc.org/docs/2.7/html/man/man9/motion.9.html
> > > 
> > > Then, wj200-vfd.0.commanded-frequency is actually a pin, which you
> > > can/should set dynamically as well:
> > > 
> > > net spindle-rps motion.spindle-speed-out-rps-abs
> > > net spindle-rps wj200-vfd.0.commanded-frequency
> > > 
> > > Good luck!
> > > 
> > > Bye,
> > > Philipp
> > > 
> > 
> > 
> > --
> > Site24x7 APM Insight: Get Deep Visibility into Application Performance
> > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
> > Monitor end-to-end web transactions and take corrective actions now
> > Troubleshoot faster and improve end-user experience. Signup Now!
> > http://pubads.g.doubleclick.net/gampad/clk?id=272487151=/4140
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> 
> 
> --
> Site24x7 APM Insight: Get Deep Visibility into Application Performance
> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
> Monitor end-to-end web transactions and take corrective actions now
> Troubleshoot faster and improve end-user experience. Signup Now!
> http://pubads.g.doubleclick.net/gampad/clk?id=272487151=/4140
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users


--
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
Monitor end-to-end web transactions and take corrective actions now
Troubleshoot faster and improve end-user experience. Signup Now!
http://pubads.g.doubleclick.net/gampad/clk?id=272487151=/4140
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Need help with X200 VFD modbus

[dannym]

OK, I am unclear on how baud rate gets set.  I see the .c code has "void 
userinit()", but I don't know how that gets called.

I had tried "loadusr -W wj200_vfd baud 19200"  (kind of random stab) and 
thought I was setting the baud, but I changed "baud" to gibberish here 
("bxyzz") and no error is generated.  

So, chances are I'm not setting the baud rate- how do I do that?


Danny

 dan...@austin.rr.com wrote: 
> Not a stupid question at all- I literally didn't do more than I said.  
> 
> I will try this ASAP.
> 
> Do you know how to handle a "watchdog" that continuously checks whether the 
> VFD is running?
> 
> Danny
> 
>  Philipp Burch  wrote: 
> > Hi Danny!
> > 
> > On 29.02.2016 08:15, Danny Miller wrote:
> > > [...]
> > > 
> > > loadusr -W wj200_vfd baud 19200
> > > #default slave address is 1
> > > setp wj200-vfd.0.mbslaveaddr 1
> > > setp wj200-vfd.0.commanded-frequency 60
> > > # connect to wj200-vfd pins
> > > net spindle-on wj200-vfd.0.run
> > > net spindle-cw wj200-vfd.0.reverse
> > > net spindle-at-speed wj200-vfd.0.is-at-speed
> > > 
> > 
> > Maybe it's a stupid question, but: Have you also connected the nets
> > spindle-on, spindle-cw and spindle-at-speed to the motion component?
> > 
> > I.e. something like
> > 
> > net spindle-on motion.spindle-on
> > net spindle-cw motion.spindle-forward
> > net spindle-at-speed motion.spindle-at-speed
> > 
> > See: http://linuxcnc.org/docs/2.7/html/man/man9/motion.9.html
> > 
> > Then, wj200-vfd.0.commanded-frequency is actually a pin, which you
> > can/should set dynamically as well:
> > 
> > net spindle-rps motion.spindle-speed-out-rps-abs
> > net spindle-rps wj200-vfd.0.commanded-frequency
> > 
> > Good luck!
> > 
> > Bye,
> > Philipp
> > 
> 
> 
> --
> Site24x7 APM Insight: Get Deep Visibility into Application Performance
> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
> Monitor end-to-end web transactions and take corrective actions now
> Troubleshoot faster and improve end-user experience. Signup Now!
> http://pubads.g.doubleclick.net/gampad/clk?id=272487151=/4140
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users


--
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
Monitor end-to-end web transactions and take corrective actions now
Troubleshoot faster and improve end-user experience. Signup Now!
http://pubads.g.doubleclick.net/gampad/clk?id=272487151=/4140
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Need help with X200 VFD modbus

[Sebastian Kuzminsky]

On 02/29/2016 08:01 PM, dan...@austin.rr.com wrote:
> Wait, aren't these ALREADY connected at:
> 
>>> net spindle-on wj200-vfd.0.run
>>> net spindle-cw wj200-vfd.0.reverse
>>> net spindle-at-speed wj200-vfd.0.is-at-speed
> 
> Does "net spindle-on motion.spindle-on" do something additional, or just try 
> to connect "spindle-on" to an unstated "motion" component?

Nothing unstated happens.

"net spindle-on motion.spindle-on" simply connects the "spindle-on" net
to the "motion.spindle-on" pin.  If you want that net to relay the
information to some other pin, you need to explicitly connect that other
pin to the net.

If you say:

net spindle-on motion.spindle-on
net spindle-on wj200-vfd.0.run

Then the spindle-on net will connect the motion.spindle-on pin to the
wj200-vfd.0.run pin, which is probably what you want.


-- 
Sebastian Kuzminsky

--
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
Monitor end-to-end web transactions and take corrective actions now
Troubleshoot faster and improve end-user experience. Signup Now!
http://pubads.g.doubleclick.net/gampad/clk?id=272487151=/4140
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Need help with X200 VFD modbus

[dannym]

Wait, aren't these ALREADY connected at:

> > net spindle-on wj200-vfd.0.run
> > net spindle-cw wj200-vfd.0.reverse
> > net spindle-at-speed wj200-vfd.0.is-at-speed

Does "net spindle-on motion.spindle-on" do something additional, or just try to 
connect "spindle-on" to an unstated "motion" component?

Danny


 Philipp Burch  wrote: 
> Hi Danny!
> 
> On 29.02.2016 08:15, Danny Miller wrote:
> > [...]
> > 
> > loadusr -W wj200_vfd baud 19200
> > #default slave address is 1
> > setp wj200-vfd.0.mbslaveaddr 1
> > setp wj200-vfd.0.commanded-frequency 60
> > # connect to wj200-vfd pins
> > net spindle-on wj200-vfd.0.run
> > net spindle-cw wj200-vfd.0.reverse
> > net spindle-at-speed wj200-vfd.0.is-at-speed
> > 
> 
> Maybe it's a stupid question, but: Have you also connected the nets
> spindle-on, spindle-cw and spindle-at-speed to the motion component?
> 
> I.e. something like
> 
> net spindle-on motion.spindle-on
> net spindle-cw motion.spindle-forward
> net spindle-at-speed motion.spindle-at-speed
> 
> See: http://linuxcnc.org/docs/2.7/html/man/man9/motion.9.html
> 
> Then, wj200-vfd.0.commanded-frequency is actually a pin, which you
> can/should set dynamically as well:
> 
> net spindle-rps motion.spindle-speed-out-rps-abs
> net spindle-rps wj200-vfd.0.commanded-frequency
> 
> Good luck!
> 
> Bye,
> Philipp
> 


--
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
Monitor end-to-end web transactions and take corrective actions now
Troubleshoot faster and improve end-user experience. Signup Now!
http://pubads.g.doubleclick.net/gampad/clk?id=272487151=/4140
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Need help with X200 VFD modbus

[Philipp Burch]

Hi,

according to
http://linuxcnc.org/docs/2.7/html/man/man9/wj200_vfd.9.html
the wj200-wfd component already has a toggle output for use by a
watchdog. Then, there's a "watchdog" component:
http://linuxcnc.org/docs/2.7/html/man/man9/watchdog.9.html

So, your HAL will basically need something like

loadrt watchdog num_inputs=1
addf watchdog.0.process base-thread
addf watchdog.0.set-timeouts servo-thread

setp watchdog.0.timeout-0 0.1

net vfd-wdt wj200-vfd.0.watchdog-out => watchdog.0.input-0
net machine-en motion.enable-out => watchdog.0.enable-in
net vfd-ok watchdog.0.ok-out

HAL syntax and naming without warranty, as I'm just writing this from
memory and the quoted manpages.

Then you can connect vfd-ok to whatever you want (or whatever should
know if the VFD is responding). The watchdog timeout will need to be set
in accordance with the VFD update rate. For a userspace component, I'd
not go much below 100ms to avoid false-positives if a response takes a
moment longer to be processed.

Bye,
Philipp

On 29.02.2016 19:59, dan...@austin.rr.com wrote:
> Not a stupid question at all- I literally didn't do more than I said.  
> 
> I will try this ASAP.
> 
> Do you know how to handle a "watchdog" that continuously checks whether the 
> VFD is running?
> 
> Danny
> 
>  Philipp Burch  wrote: 
>> Hi Danny!
>>
>> On 29.02.2016 08:15, Danny Miller wrote:
>>> [...]
>>>
>>> loadusr -W wj200_vfd baud 19200
>>> #default slave address is 1
>>> setp wj200-vfd.0.mbslaveaddr 1
>>> setp wj200-vfd.0.commanded-frequency 60
>>> # connect to wj200-vfd pins
>>> net spindle-on wj200-vfd.0.run
>>> net spindle-cw wj200-vfd.0.reverse
>>> net spindle-at-speed wj200-vfd.0.is-at-speed
>>>
>>
>> Maybe it's a stupid question, but: Have you also connected the nets
>> spindle-on, spindle-cw and spindle-at-speed to the motion component?
>>
>> I.e. something like
>>
>> net spindle-on motion.spindle-on
>> net spindle-cw motion.spindle-forward
>> net spindle-at-speed motion.spindle-at-speed
>>
>> See: http://linuxcnc.org/docs/2.7/html/man/man9/motion.9.html
>>
>> Then, wj200-vfd.0.commanded-frequency is actually a pin, which you
>> can/should set dynamically as well:
>>
>> net spindle-rps motion.spindle-speed-out-rps-abs
>> net spindle-rps wj200-vfd.0.commanded-frequency
>>
>> Good luck!
>>
>> Bye,
>> Philipp
>>
> 



signature.asc
Description: OpenPGP digital signature
--
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
Monitor end-to-end web transactions and take corrective actions now
Troubleshoot faster and improve end-user experience. Signup Now!
http://pubads.g.doubleclick.net/gampad/clk?id=272487151=/4140___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Need help with X200 VFD modbus

[dannym]

Not a stupid question at all- I literally didn't do more than I said.  

I will try this ASAP.

Do you know how to handle a "watchdog" that continuously checks whether the VFD 
is running?

Danny

 Philipp Burch  wrote: 
> Hi Danny!
> 
> On 29.02.2016 08:15, Danny Miller wrote:
> > [...]
> > 
> > loadusr -W wj200_vfd baud 19200
> > #default slave address is 1
> > setp wj200-vfd.0.mbslaveaddr 1
> > setp wj200-vfd.0.commanded-frequency 60
> > # connect to wj200-vfd pins
> > net spindle-on wj200-vfd.0.run
> > net spindle-cw wj200-vfd.0.reverse
> > net spindle-at-speed wj200-vfd.0.is-at-speed
> > 
> 
> Maybe it's a stupid question, but: Have you also connected the nets
> spindle-on, spindle-cw and spindle-at-speed to the motion component?
> 
> I.e. something like
> 
> net spindle-on motion.spindle-on
> net spindle-cw motion.spindle-forward
> net spindle-at-speed motion.spindle-at-speed
> 
> See: http://linuxcnc.org/docs/2.7/html/man/man9/motion.9.html
> 
> Then, wj200-vfd.0.commanded-frequency is actually a pin, which you
> can/should set dynamically as well:
> 
> net spindle-rps motion.spindle-speed-out-rps-abs
> net spindle-rps wj200-vfd.0.commanded-frequency
> 
> Good luck!
> 
> Bye,
> Philipp
> 


--
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
Monitor end-to-end web transactions and take corrective actions now
Troubleshoot faster and improve end-user experience. Signup Now!
http://pubads.g.doubleclick.net/gampad/clk?id=272487151=/4140
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Stake in ball screw Cincinnati Arrow

[Peter Blodow]

It wasn't the recycling, but certain softening compounds in PVC were 
suspected to cause cancer and reduced by law. This war aimed at 
children's toys and other playstuff, but hit wire insulation as well 
(though nobody would use wire insulation for a lolly). Furthermore, 
machine oil and above all cooling compounds would dissolve and remove 
the new softeners more readily than the old ones, leaving hard PVC. Same 
problem is with rubber insulation, too. There are oilproof cables, 
though, Oelflex brand (made by Lapp Cables) for instance.
Peter

Am 29.02.2016 14:25, schrieb BRIAN GLACKIN:
> A note on German wiring from the early 1990's.  At that time the Green
> Party came in and pushed fro higher recycling.  Many manufacturers went
> with a higher recycled content in their wire insulation to meet the edict.
> Mercedes Benz was one of the earliest hit by this change.  Harness in the
> W124 line of vehicles in 1993-1995, were failing after 2 years in service.
> The recycled content made the covering brittle with exposure to heat in the
> near term and generally shorter lifetimes.  Sounds like this hit machine
> parts as well from that era.
>
>
>


---
Diese E-Mail wurde von Avast Antivirus-Software auf Viren geprüft.
http://www.avast.com


--
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
Monitor end-to-end web transactions and take corrective actions now
Troubleshoot faster and improve end-user experience. Signup Now!
http://pubads.g.doubleclick.net/gampad/clk?id=272487151=/4140
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Stake in ball screw Cincinnati Arrow

[Gene Heskett]

On Monday 29 February 2016 08:51:03 Rick Lair wrote:

> Aaaa, that makes sense then,
>
> Rick
>
I might throw in another observation I first made in the 1970's when CB 
radios from the J.A.Pan Co. started flooding the market.

Any wire of asian origin, which has a bright red insulation, bordering on 
a hint of magenta coloration, is a 3 to 5 year wire at best, and that 
category INCLUDES those bright red sata cables we use in our computers 
today.

So it you start having drive troubles, put a tail on the messages file, 
and take a pencil or longer dowel and move the drive cable(s) around.  
If the log explodes with disconnect/reset messages, its time to replace 
those cables but not with more red ones. Tan, yellow, blue or black is 
fine, but get rid of the red ones.  End of problem for many years.

Back in the years I was dealing with the CB radios as a service tech, 
mike cables were the usual suspect, and most makers used the red wire in 
the cable as a transmit trigger.  Transmission would stop, or get 
extremely broken up, so I'd pull the covers off the connector & check 
continuity, and it was always the red wire that was broken even if it 
didn't look broken.  You could wiggle it and find the bad connection was 
usually inside the insulation, either in the strain relief gripper as it 
exited the mike, or just as often, in the 4 pin connector where it 
hooked to the radio, also at the point of the strain relief clamp.  
Cutting the jacket back past that point about an inch, then restripping 
the cable to resolder it back together, usually found nothing but a 
copper colored dust inside the red wire, no wire left in it to strip!

We started ordering mike cable replacements, but had a hell of a time 
convincing the suppliers that we wanted ONLY american made cables, 
because the japanese made cables they could sell us for 1/3rd the cost 
of the american cable, were more of the same crap we were replacing.  
And Norfolk Two-way Radio had a reputation to up hold as we were famous 
from coast to coast among the truckers as THE place to get your radio 
fixed right.  And I was the bench tech doing those repairs on the side, 
making a 14 hour day out of keeping KXNE-TV 19 on the air for the 
Nebraska ETV Commission with about 6 hours in the middle of the day 
doing the radio work.  There's something it that hot red dye that 
doesn't bode well for copper, oxidizing it into dust eventually.

If you have good color vision, that particular plastic dye stands out 
like a flashing red warning light to the experienced tech, and I just 
wrote 4k of text to say that. :( When you see it, you ARE looking at 
Trouble with a capital T.

So I'll snip the rest.

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 

--
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
Monitor end-to-end web transactions and take corrective actions now
Troubleshoot faster and improve end-user experience. Signup Now!
http://pubads.g.doubleclick.net/gampad/clk?id=272487151=/4140
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Stake in ball screw Cincinnati Arrow

[Rick Lair]

Aaaa, that makes sense then,

Rick




On 2/29/2016 8:25 AM, BRIAN GLACKIN wrote:
> A note on German wiring from the early 1990's.  At that time the Green
> Party came in and pushed fro higher recycling.  Many manufacturers went
> with a higher recycled content in their wire insulation to meet the edict.
> Mercedes Benz was one of the earliest hit by this change.  Harness in the
> W124 line of vehicles in 1993-1995, were failing after 2 years in service.
> The recycled content made the covering brittle with exposure to heat in the
> near term and generally shorter lifetimes.  Sounds like this hit machine
> parts as well from that era.
>
> On Sun, Feb 28, 2016 at 5:22 AM, Gregg Eshelman  wrote:
>
>> On 2/27/2016 8:04 AM, Dave Cole wrote:
>>> The nut and screw are matched to each other and then they fit the nut to
>>> the screw with the proper sized balls.
>>> Usually they are purchased together as a set and you really don't want
>>> to take them apart unless it is necessary.
>>> You can have screws reground - I think that Thompson and Nook others do
>>> that in the US.
>>> I suspect that if you have a "standard" screw you might be able to fit a
>>> new nut to it, but then if the nut is shot, generally the screw also
>>> needs help.
>>> So what usually needs to be done is that the nut and screw need to be
>>> reconditioned as a set.
>>> I worked on a machine that had a bad screw and they got a quote from
>>> Thompson or Nook to have the screw and nut reconditioned and I think it
>>> was about half what a new
>>> set would have cost.
>> Some of them have every other ball slightly smaller as a spacer to
>> reduce turning friction. Unfortunately that also cuts load capacity.
>> What some rebuilders do is replace all the balls with ones of the full
>> size, or if the screw has to be ground more than usual they'll install
>> larger than original balls.
>>
>> If you have a screw with even wear along its length and a willingness to
>> experiment, and precise way to measure ball diameter, you can buy new
>> balls on eBay real cheap. Choose some just a smidge larger than what was
>> in it and see if the screw tightens up, without binding.
>>
>> There's probably some formula to select the ball size required based on
>> measuring backlash etc, but the balls are cheap enough to buy more than
>> one size.
>>
>> What I'd like to see is a precision and accuracy test of a new ground
>> ball screw VS a high grade rolled ball screw VS a rebuilt with full
>> grind rolled ball screw.
>>
>>
>> ---
>> This email has been checked for viruses by Avast antivirus software.
>> https://www.avast.com/antivirus
>>
>>
>>
>> --
>> Site24x7 APM Insight: Get Deep Visibility into Application Performance
>> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
>> Monitor end-to-end web transactions and take corrective actions now
>> Troubleshoot faster and improve end-user experience. Signup Now!
>> http://pubads.g.doubleclick.net/gampad/clk?id=272487151=/4140
>> ___
>> Emc-users mailing list
>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
> --
> Site24x7 APM Insight: Get Deep Visibility into Application Performance
> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
> Monitor end-to-end web transactions and take corrective actions now
> Troubleshoot faster and improve end-user experience. Signup Now!
> http://pubads.g.doubleclick.net/gampad/clk?id=272487151=/4140
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users

-- 

Thanks


Rick Lair
Superior Roll & Turning LLC
399 East Center Street
Petersburg MI, 49270
PH: 734-279-1831
FAX: 734-279-1166
www.superiorroll.com


--
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
Monitor end-to-end web transactions and take corrective actions now
Troubleshoot faster and improve end-user experience. Signup Now!
http://pubads.g.doubleclick.net/gampad/clk?id=272487151=/4140
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Stake in ball screw Cincinnati Arrow

[BRIAN GLACKIN]

A note on German wiring from the early 1990's.  At that time the Green
Party came in and pushed fro higher recycling.  Many manufacturers went
with a higher recycled content in their wire insulation to meet the edict.
Mercedes Benz was one of the earliest hit by this change.  Harness in the
W124 line of vehicles in 1993-1995, were failing after 2 years in service.
The recycled content made the covering brittle with exposure to heat in the
near term and generally shorter lifetimes.  Sounds like this hit machine
parts as well from that era.

On Sun, Feb 28, 2016 at 5:22 AM, Gregg Eshelman  wrote:

> On 2/27/2016 8:04 AM, Dave Cole wrote:
> > The nut and screw are matched to each other and then they fit the nut to
> > the screw with the proper sized balls.
> > Usually they are purchased together as a set and you really don't want
> > to take them apart unless it is necessary.
> > You can have screws reground - I think that Thompson and Nook others do
> > that in the US.
> > I suspect that if you have a "standard" screw you might be able to fit a
> > new nut to it, but then if the nut is shot, generally the screw also
> > needs help.
> > So what usually needs to be done is that the nut and screw need to be
> > reconditioned as a set.
> > I worked on a machine that had a bad screw and they got a quote from
> > Thompson or Nook to have the screw and nut reconditioned and I think it
> > was about half what a new
> > set would have cost.
>
> Some of them have every other ball slightly smaller as a spacer to
> reduce turning friction. Unfortunately that also cuts load capacity.
> What some rebuilders do is replace all the balls with ones of the full
> size, or if the screw has to be ground more than usual they'll install
> larger than original balls.
>
> If you have a screw with even wear along its length and a willingness to
> experiment, and precise way to measure ball diameter, you can buy new
> balls on eBay real cheap. Choose some just a smidge larger than what was
> in it and see if the screw tightens up, without binding.
>
> There's probably some formula to select the ball size required based on
> measuring backlash etc, but the balls are cheap enough to buy more than
> one size.
>
> What I'd like to see is a precision and accuracy test of a new ground
> ball screw VS a high grade rolled ball screw VS a rebuilt with full
> grind rolled ball screw.
>
>
> ---
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
>
>
>
> --
> Site24x7 APM Insight: Get Deep Visibility into Application Performance
> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
> Monitor end-to-end web transactions and take corrective actions now
> Troubleshoot faster and improve end-user experience. Signup Now!
> http://pubads.g.doubleclick.net/gampad/clk?id=272487151=/4140
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>
--
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
Monitor end-to-end web transactions and take corrective actions now
Troubleshoot faster and improve end-user experience. Signup Now!
http://pubads.g.doubleclick.net/gampad/clk?id=272487151=/4140
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Need help with X200 VFD modbus

[Philipp Burch]

Hi Danny!

On 29.02.2016 08:15, Danny Miller wrote:
> [...]
> 
> loadusr -W wj200_vfd baud 19200
> #default slave address is 1
> setp wj200-vfd.0.mbslaveaddr 1
> setp wj200-vfd.0.commanded-frequency 60
> # connect to wj200-vfd pins
> net spindle-on wj200-vfd.0.run
> net spindle-cw wj200-vfd.0.reverse
> net spindle-at-speed wj200-vfd.0.is-at-speed
> 

Maybe it's a stupid question, but: Have you also connected the nets
spindle-on, spindle-cw and spindle-at-speed to the motion component?

I.e. something like

net spindle-on motion.spindle-on
net spindle-cw motion.spindle-forward
net spindle-at-speed motion.spindle-at-speed

See: http://linuxcnc.org/docs/2.7/html/man/man9/motion.9.html

Then, wj200-vfd.0.commanded-frequency is actually a pin, which you
can/should set dynamically as well:

net spindle-rps motion.spindle-speed-out-rps-abs
net spindle-rps wj200-vfd.0.commanded-frequency

Good luck!

Bye,
Philipp



signature.asc
Description: OpenPGP digital signature
--
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
Monitor end-to-end web transactions and take corrective actions now
Troubleshoot faster and improve end-user experience. Signup Now!
http://pubads.g.doubleclick.net/gampad/clk?id=272487151=/4140___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users