Crosstalk between spindle power lines and solenoid control lines perhaps?
 On Oct 27, 2012 6:36 PM, "Viesturs Lācis" <viesturs.la...@gmail.com> wrote:

> Hello!
>
> While working in premises of my customer to add new automatic material
> loading/unloading module for one of my machines, I have encountered
> strange error in ClassicLadder. I took a video on my phone with it:
> http://www.youtube.com/watch?v=9YjkGbpuT50
>
> I will try to explain:
> The idea is to use classicladder to control valves for pneumatics that
> load the material in machine, hold it in place and then unload.
> When I started working on the ladder logic, everything was working
> fine, but then, at one moment, I think at the moment, when I linked
> one of classicladder input pins to motion.spindle-on, it just stopped
> turning the outputs on and off in a correct manner. Some of outputs
> are working fine, but others are doing I do not know what - seems like
> turning on for a very small amount of time at random moments.
> It is 2.5~pre, installed from buildbot package some time almost a year
> ago. I did copy all the config files, so I can share them, if that
> helps.
> I tried to workaround this with M62/M63 and M64/M65 commands and G4
> inbetween them to specify correct time distances between any 2 events,
> but that did not work out nicely - I did not notice any difference
> after changing almost all P values for G4 command from 0,5 to 3,5.
> Restarting system for several times did not help either. I do not
> know, how many times did I restart LinuxCNC...
>
> Does anyone has any idea, what went wrong?
>
> --
> Viesturs
>
> If you can't fix it, you don't own it.
> http://www.ifixit.com/Manifesto
>
>
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