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Author Topic: MACH3 Pulse Frequency appears unstable (R3.043.066)  (Read 7997 times)

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MACH3 Pulse Frequency appears unstable (R3.043.066)
« on: February 15, 2014, 10:31:30 PM »
Hi
My 4 axis Router has been working fine in the past however I'm in the middle of reworking the control panel with an upgrade for the Home Switches and general tidy up. Now I maybe having a senior moment here but I have noticed the Pulse Frequency in the Diagnostics screen seems to jump around a lot and I remember this being kinda stable with only slight fluctuations of maybe a 100Hz or so but I never paid much attention to this. Now I see a Pulse Freq of constantly changing from 57639 > 58815 > 57675 and then it drops back to 925 > 83 Hz and repeats again 57639 .....
And last night while being away from the PC for 20mins, returning I found that Mach3 screen was no longer open ? a crashed is my guess !!

The PC is an All in One Hitachi Flora running XP Pro SP3
I don't suspect an over heating CPU > runs at around 45 to 48 deg C, Intel P4 @ 3.60GHz + 2GB of memory.
LPT1 > G540.
LPT2 > MB02-V6 BOB.

I recently added the iMACH III P2-S USB pendant this requires a dll file copied to the plugin folder and its good to go > Disable the plugin and there is no change

Pulse Engine is running at 60kHz and changing this back to 25kHz makes no difference.
I have run the Driver Test a couple of times and rebooted. 
The driver test is successful and shows the mach3 takeover "excellent" > Reboot
In the Mach3 screen The Driver says it was "Successfully initialised" > Pulse engine shows no change

I'm a few weeks away from completing the updates so its difficult to do a test run, perhaps its been like this all along and now I've just realised.... could you guys take a peek at your pulse engine in the diagnostics tab and let me know

Any suggestions would be appreciated

Breastfed






Re: MACH3 Pulse Frequency appears unstable (R3.043.066)
« Reply #1 on: February 22, 2014, 07:03:55 AM »
Hi,
I would be grateful if you guys could take a peek at the Diagnostic page and tell me if the Pulse Freq is a steady number

Breastfed  ;D

Offline ger21

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Re: MACH3 Pulse Frequency appears unstable (R3.043.066)
« Reply #2 on: February 22, 2014, 09:07:27 AM »
On my 1Ghz PIII at 25Khz, it deviates by about 2-4. I would probably expect a bit more deviation at 60Khz,  IF the machine runs OK, I wouldn't worry about it.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
Re: MACH3 Pulse Frequency appears unstable (R3.043.066)
« Reply #3 on: February 22, 2014, 09:31:24 AM »
Thanks for the reply, I see a Pulse Freq of constantly changing from 57639 > 58815 > 57675 and then it drops back to 925 > 83 Hz and repeats again 57639....
When I run the Driver Test its rock solid, btw the PC is dedicated to this machine and there is no extra bloatware to speak of

any suggestions as to what I can do to diagnose this ?

Breastfed

Offline ger21

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Re: MACH3 Pulse Frequency appears unstable (R3.043.066)
« Reply #4 on: February 22, 2014, 09:38:04 AM »
No, not really. Every PC runs Mach3 differently.

What you can do is make sure all unnecessary services in Windows are turned off, and disable all on board hardware that's not being used in the bios.
Disable sound, unused ports, unused networking. Not just software but all hardware and unused core components of Windows.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
Re: MACH3 Pulse Frequency appears unstable (R3.043.066)
« Reply #5 on: February 22, 2014, 11:50:55 AM »
OK Thanks I will check this out

Breastfed
Re: MACH3 Pulse Frequency appears unstable (R3.043.066)
« Reply #6 on: February 24, 2014, 05:55:59 AM »
I was sure there was another text document floating around on the web about how to optimise the PC for Mach3,  do you know if this is the latest ?
ftp://machsupport.com/Extra%20Information/XP%20Optimization%20Guide.txt

Still looking

Offline ger21

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Re: MACH3 Pulse Frequency appears unstable (R3.043.066)
« Reply #7 on: February 24, 2014, 01:19:27 PM »
That's the only one I know of.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
Re: MACH3 Pulse Frequency appears unstable (R3.043.066)
« Reply #8 on: March 09, 2014, 07:30:18 AM »
Hi,
I've got a frequency fluctuation problem and am trying to find the answer - but tried the link given and get a page error - not found - report. Any ideas where it is?
Regards,
GeoffB
GeoffB