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It looks like you are running a non-realtime (sim) configuration



 

Team,
I need some help.  New to linuxcnd.    Linuxcnc  bookworm on N97 CPU, Mesa7i92TF,   fails to launch. 
Error "Unexpected realtime delay on task0 with period 1000000"
hm2/hm2_7i92.0 erro finishing write! iter=2219.

i did update the driver  r8168kdms,  disable cpu power saving mode ,  set - c state  at level 2.  Please
 

I just installed a new dev build from the Doc scripts and it is updating on save as expected. I would check your build, did you change the name when saving?

Yes, I use the launchers on the desktop, "Designer for PB Mill" and "Designer for PB Lathe", then launch LinuxCNC with "Probe Basic Mill" and "Probe Basic Lathe" launchers on the desktop.

It is also standard practice for cam software and tool length offset. Definitely need to change to standard practice, so reason to reinvent the wheel on this. With a work offset you will be setting zero wherever you want. But machine motion is always z moving down is negative direction.

You should switch your Z=0 direction.  Machine Z-0 (G53) should be at top of stroke (or furthest from chuck for lathes).

This is standard practice on most machines, and is compatible with the qtpyvcp/probe basic tool setter routines.

You can set your G54 (and other) WCS wherever you'd like, of course.

I like SSR's, but I don't trust them as main disconnect (i.e. Estop) devices.  SSR's tend to fail closed, not open.  Even if you don't use a dedicated, guided-contact estop relay, a magnetic contactor between your overcurrent protection device(s) and everything else is a safe bet.

Final suggestion - draw your wiring diagram before you settle on a control panel layout.  It will help you internalize what voltages go where so your layout makes sense.

Plenty of times I've had to add a relay, or stuff some un-accounted-for component because I hadn't finalized the wiring.  Or run out of field connectors for IO, or other dumb stuff - like switching from steppers to servos in the middle of a build.

Good point! I do have a handful of 40 amp solid state relays I didnt draw in there yet that I plan on adding for powering on and off along with a couple of switches. had a solidworks update but I'll redraw some stuff and post it again!

This panel will probably be behind the mill and I'll make a separate control panel where my computer sits that will have e-stop and the other goodies. Possibly something similar to this 3d printed estop switch combo that I made for a rocket thrust stand.
 

Seriously thank you all for the suggestions! always good to get another viewpoint!

Vair8 wrote:

Current power supply is a 48v 10 amp meanwell.

Here’s the motor and drivers I currently have.
12 Nm Stepper Online

Just a quick search for toroidal supplies, my driver is rated for 80v, I could possibly do a single 72v supply like this one. 
1440W 72V
 

Your drives can take 110VDC, or 80VAC.  Antek has toroid transformers or complete toiroid PSU's with rectifiers and caps.

I'd suggest running as close to the max voltage your drives will permit - this will give you better performance at higher RPM.

A simple toroid will be easier to mount (see @Benb's post) than a complete PSU, and be cheaper, too.  Just be sure to check your supply voltage... in my case I'm averaging 240-245VAC, and my "100VDC" PSU from Antek is actually putting out ~104VDC.  Pretty close to my drive max.

So if you get a 78V toroid and your supply voltage is on the high side, you might over-volt your 80V drives.

I didn't see any contactors or other power-handling components (fuses, breakers, etc.) in your layout.  Are you planning to just use the main disconnect switch as your 'off' control?  Yank the plug out of the wall 'estop'?

Do you have a way to start LCNC, your controller, and IO without powering up your VFD and stepper drives?

Print out a page with your components and use a crayon or pen to draw the conductor/cable paths through everything.

VAC-IN -> disconnect -> beakers/fuses -> distribution block -> contactor(s) -> VFD & stepper PSU/transformer & 24vdc/5vdc PSU's for IO & controller

The left wire duct should be twice as large as the others, since it will have bunch of cable going through it from the bottom of the panel to the stepper drives. You will also need room for relays for those heavy loads. It is better to have extra space in the panel. We usually add 10% for unseen. The example below  is pictue of control panel that shows a spider nest of cables hanging on the left. Also, the 1inch or 1.5” wire ducts are too small, they look cut but not practical.However, I like the way the toroidal transformer is mounted.

 
 

ant0ny wrote:

I am using 2.7 and it is running great but I tried to install 2.8 and the latest 2.9 and using the same settings from 2.7... both result in the motors running rough like the is electrical noise but swapping it back to 2.7 it runs sweat again?

Most probably due to latency issues as the 2.7 ISO used the RTAI kernel that has better latency on older PC's, while new LinuxCNC versions use the RT-Preempt version of the kernel that is better suited for new-er PC's.
I would stick with 2.7.

Tommy,
Thanks but I fixed it... I noticed the socket pins loose when I plugged the Zplug in with the lid off... so I just swapped the sockets around and using the Aaxis socket plugged into the Z driver and it works again. So I have to assume it was just the connection.

I do have another weird issue though, maybe someone could shine a light on.

I am using 2.7 and it is running great but I tried to install 2.8 and the latest 2.9 and using the same settings from 2.7... both result in the motors running rough like the is electrical noise but swapping it back to 2.7 it runs sweat again?

I am assuming it's to do with the drivers and maybe in step config I should be using something other then "other"

Checked all 16, all of them still read 27 ohm

Current power supply is a 48v 10 amp meanwell.

Here’s the motor and drivers I currently have.
12 Nm Stepper Online

Just a quick search for toroidal supplies, my driver is rated for 80v, I could possibly do a single 72v supply like this one. 
1440W 72V

How many amps does the power supply have?
If the picture is anything to go by size vise, 2 should be enough, maybe, just maybe 1 ...