Machsupport Forum

Mach Discussion => FAQs => Topic started by: Alax_11 on March 07, 2009, 07:14:03 PM

Title: Pulsing too fast
Post by: Alax_11 on March 07, 2009, 07:14:03 PM
I have mach3 and I run DriverTest and it says pulsing too fast, anything wrong ??? HELP!
Title: Re: Pulsing too fast
Post by: RICH on March 08, 2009, 10:11:26 AM
What Kernel Speed are you using? In Mach CONFIG>PORTS&PINS try 25000hz
RICH
Title: Re: Pulsing too fast
Post by: Alax_11 on March 08, 2009, 01:14:00 PM
Yes the Kernel Speed is 25000Hz, I am using Intel P3 Board & 800MHz Processor with 512MB Ram, 32MB AGP ATI graphics card, Updated Windows XP, Drivers OK. but Pulsing too fast >:(
See the jpg!
Title: Re: Pulsing too fast
Post by: Alax_11 on March 10, 2009, 10:54:54 AM
I read the forum of Artsoft and I think Mach3 have many problems.
Hope :-\ everything will be fine.
Title: Re: Pulsing too fast
Post by: RICH on March 10, 2009, 05:27:11 PM
ALAX 11,
Don't know what to tell you. Surely someone else will chime in that has maybe seen "PULSING TO0 FAST" and can give you specific information. Don't recall any posting like yours since i have been following the postings.


Is the pc a dedicated one for use with Mach?
Have you tried optimizing it?
Do you have any software, anti-virus, QuickTime, etc on the PC?
What Mach Version are you using?

As far as Mach having many problems,....there are thousands of users who don't have "many problems"
and make a living based on using it.

RICH


Title: Re: Pulsing too fast
Post by: Alax_11 on March 11, 2009, 03:09:24 AM
OK I think it is my mistake :-X
Please tell me which is the best desktop board, processor & graphics card for Mach3 R3.042.022
I am planing to buy Intel D865GBF or D975XBX2 desktop board & Core2 or P4 2.60GHz processor.

If Pulsing too fast what I need to do?
I have no anti-virus, QuickTime, etc on the PC.
thanks!
Title: Re: Pulsing too fast
Post by: RICH on March 11, 2009, 06:29:01 AM
Alax 11,
I suggest that you read through the "SYSTEM Requirements" thread and also
"problems with laptop" thread. So i can't recommend one pc over another. I will say that
don't put together or buy a pc with built-in / on-board graphics. In general most any pc
will work, laptops "may" be problematic. Speed and memory helps when you start using things
like video. We have used everthing from an "old dead dog" 400 MHZ laptop 256k memory to high
end computers successfully.

Rich
 

Title: Re: Pulsing too fast
Post by: Alax_11 on March 11, 2009, 09:21:59 AM
Thanks for the Heads up ;)
Title: Re: Pulsing too fast
Post by: Alax_11 on March 11, 2009, 09:33:21 AM
I have a question!
What is the difference between OriginalDriver & SpecialDriver for mach3.
Title: Re: Pulsing too fast
Post by: Chip on March 11, 2009, 05:08:14 PM
Hi, Alax

It is for computers that experience the Blue Screen of Death issues.

Chip
Title: Re: Pulsing too fast
Post by: Alax_11 on March 12, 2009, 07:39:37 AM
When I install OriginalDriver for my PC, it pulsing normal but when I run mach3, I am getting blue screen of death issues.
When I install SpecialDriver, it pulsing too fast but I get no blue screen of death issues.
Any comments?
Title: Re: Pulsing too fast
Post by: Dr.Jackpot on March 25, 2009, 03:37:16 PM
I wish I knew a way to take a voltmeter reading on the parallel port output connector pins and actually exercise a few pins logic levels to see if Mach 3 is doing anything.  I'm so frustrated.  When I run the output test the dialog box says "running too fast" and the next time I do it says "running too slow".  Is there a way to set output pins high or low to see if anything is working??? Using a Sony VGN-A190 laptop.
Title: Re: Pulsing too fast
Post by: RICH on March 25, 2009, 06:49:33 PM
DR JACKPOT,
Maybe it is just that particular  laptop and one that dosen't work with very well with MACH.
Someone posted a link to a free PP tester, freebie, ????? Budman ???????
RICH
Title: Re: Pulsing too fast
Post by: budman68 on March 25, 2009, 08:11:05 PM
Wasn't me Rich, sorry-

Dave
Title: Re: Pulsing too fast
Post by: RICH on March 25, 2009, 11:08:00 PM
Thanks Dave,

The name of the program is "PARMON"  and gives PP pin status.
Do a search and you should be able to find it.

RCH
Title: Re: Pulsing too fast
Post by: Alax_11 on March 27, 2009, 07:17:27 PM
After very long time :'(, I build a new PC :D and Mach is working fine great ;)
I think old PC is a problem for mach ???
Now the mission is begin ;D
Thanks   :)
Title: Re: Pulsing too fast
Post by: Alax_11 on March 30, 2009, 10:08:36 AM
Is any new Driver update available?
Title: Re: Pulsing too fast
Post by: aawills on November 11, 2010, 06:24:21 PM
Hello fellow machinists.
I'm in London England.
I too ran the 'check config' and it said that the kernel speed was higher than required by the motor tuning. I looked for the kernel speed and it is set, as suggested by my supplier (ZealCNC), at 75khz but the 25khz mode is suggested by the sooftware.
I ran the DriverTest and it says: '25khz' but it also says 'pulsing too fast'

Any clues?
Title: Re: Pulsing too fast
Post by: Tweakie.CNC on November 12, 2010, 02:41:36 AM
Aawills,

I suggest that you check 'Config / Ports & Pins' that you actually do have kernel speed set to 25000. There is seldom any need to go higher than this.

Tweakie.
Title: Re: Pulsing too fast
Post by: JPJ on November 12, 2010, 05:24:02 PM
Hi all,

Just to clarify - please correct me if I am wrong - the Khz setting in the Driver test does not affect Mach3's kernel setting. I too run my machine at 75Khz kernel speed. My config check also tells me that the kernel speed in motor tuning is higher than required, but simple math plainly shows it is not.

Regarding the 75Khz kernel speed; we could certainly increase the digital gearing at the servo drive and run a slower kernel speed at the cost of reduced resolution, but I don't see a reason to do so unless the PC cannot cope.

For those who may have experienced and resolved the 'pulsing too fast' message aawills is describing, what was the solution? Faster PC? Optimization?

Regards,

Jason
Title: Re: Pulsing too fast
Post by: jr_82 on April 08, 2011, 07:01:50 PM
I also get the pulsing to fast.  I run it as 25khz I have a 1.2 Ghz processor, it is decitaded to the CNC Router only. Nothing else is running on the computer other than the wireless internet connection.

If I change it to 35khz, it does not say pulsing too fast, but when ever I do anything with the computer ie move mouse so screen saver turns off the machine jumps and looses its place.  Now that is a problem. 

Title: Re: Pulsing too fast
Post by: RICH on April 09, 2011, 07:55:26 AM
Quote
but when ever I do anything with the computer ie move mouse so screen saver turns off the machine jumps and looses its place.  Now that is a problem.


Turn the screen saver off and dedicate the machine to machining. Don't use it for the internet.
RICH
Title: Re: Pulsing too fast
Post by: jr_82 on April 09, 2011, 09:08:00 AM
It not so much for the internet. It is a wireless connection for moving the files from my cad and cam to the cnc machine. in stead of using a flash drive. with the screen saver off it. it will still do the same thing if I change a tab on the screen or even if I press the stop button.  I loose my settings and have to re zero the machine to resume.

Thanks
JR

Title: Re: Pulsing too fast
Post by: RICH on April 09, 2011, 04:59:07 PM
Something is interfering with Mach. Think of it this way, Mach and Windows shares time and if something interfers with Mach your on the short end of it all.
Maybe someone else will chime in and can give you something more specific.
RICH
Title: Re: Pulsing too fast
Post by: andrewm on April 11, 2011, 01:14:33 PM
It could be the software for the wireless adapter(try uninstalling it to see if it still happens), Or just the PC itself....

What are the Specs for the PC? Does it have on-board Video or a Plug and Play card? Whats the OS?(if its XP you could run the optimization.txt file)
Title: Re: Pulsing too fast
Post by: jr_82 on April 11, 2011, 02:03:15 PM
it is xp, everything is on board. I think I got it. Thanks JR
Title: Re: Pulsing too fast
Post by: Fred_evans on May 23, 2011, 10:14:32 AM
I also had the same3 message- but when i left it 9on the screen for a few minutes it came back
with another message which said that all was "excellent"\

so it seemed to sort itself out

fred evans
Title: Re: Pulsing too fast
Post by: nava on May 24, 2012, 02:35:00 PM
I thought I would try mach3 under windows 7 and see if what I measured on a dial indicator was different to my install of mach3 on XP (same computer)...and so far its spot on .  I ran the driver test to see if there was any change to the pulse stream and it seemed that they were the same as on XP(same resolution/noise).  I ran the test and at first its saying "pulse too fast" but this is before the test takes over then it says the system is excellent all the way through.  My question is if this is a normal state to read out before the test begins?  On a side note I was thinking maybe its a good idea to search for a PCI parallel port card that had a good amount of signal output and noise suppression similar to what you might find on a higher end sound recording card but I couldn't really find much info, so my other question is has any one found a good source of cards that have a good output?
Title: Re: Pulsing too fast
Post by: Tweakie.CNC on May 25, 2012, 01:12:12 AM
Hi Nava,

May I suggest that you do a search for 'parallel port card' to check out others experiences.

As an example http://www.machsupport.com/forum/index.php/topic,11300.0.html

Tweakie.