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Author Topic: Mach 3 - driving beyond soft limits ?  (Read 984 times)

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Offline Davek0974

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Re: Mach 3 - driving beyond soft limits ?
« Reply #10 on: April 08, 2018, 03:36:44 AM »
I would discount opt3 straight away really - Mach has been going too long for there to be a bug which can cause this loss on such a simple procedure - its a facing cut, the simplest of code routines, probably only a few lines long.

My money would be to concentrate on 1 & 2

The big question is - is it a one-off or does it do it every run?

If its a one-off occurrence then it may never be found.
Bridgeport Mill, Mach3 V062, CSMIO-IP/A controller, AC Servo Drives

Offline Filou

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Re: Mach 3 - driving beyond soft limits ?
« Reply #11 on: April 08, 2018, 04:33:27 AM »
Craig, Davek0974, thank you both for helping.

I'm also skeptical about Mach 3 having such a bug, its been around for long, and why would it show-up after a year of regular operation on the same rig, a dedicated PC that receives MINIMAL maintenance and changes.

Vdc and I at PSU seem OK.  Motor couplers OK. Temp of one axis a bit high, to my taste.

Monitoring pulse trains on a 4 channel scope, pretty boring pattern, using its memory to keep as much data as possible. Figuring out a way to have the scope halt acquisition after a failure. 

Offline Filou

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Re: Mach 3 - driving beyond soft limits ?
« Reply #12 on: April 08, 2018, 04:36:00 AM »
Davek0974, two such occurrences in one year, on the same 2H - long job. 

Offline Filou

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Re: Mach 3 - driving beyond soft limits ?
« Reply #13 on: April 11, 2018, 05:25:26 AM »
short up-date: event did not reproduce thus far, pulse train and signals to the coils of the stepper OK.