RRF 3.4 beta 7 | Heater and Driver Problem!
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@cr3d you need the build from here to fix the heater issue https://forum.duet3d.com/topic/26787/unofficial-rrf-3-4-0beta7-4-files/18
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@cr3d i doubt stable will come that quickly
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@cr3d is the Duet running in standalone mode, or with attached single board computer?
If it happens again, please ask the customer to run M122 and save the report before powering the machine off or otherwise resetting it.
We have one other report of a similar fault in 3.4beta firmware, and I implemented what I hope would be a fix prior to 3.4RC1 - I couldn't be sure if it would fox it because were were not able to reproduce this issue.
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Standalone Mode
ok i can check M122 then... Powering off did not work for about 5 times, also reseting the mainboard and expansion board had no effect.
Only PID Tuning of the nozzle "activated" the board...
Yes as i said...we had this issue one time two weeks ago at our workshop... we were not able to reproduce it and we said ok... perhabs it made to much resets with firmware changes or something else. Two other machines with the very same setup had no issue like this till now...
I hope for a solution to fix this... Thank you very much!
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@cr3d said in RRF 3.4 beta 7 | Heater and Driver Problem!:
Yes as i said...we had this issue one time two weeks ago at our workshop... we were not able to reproduce it and we said ok... perhabs it made to much resets with firmware changes or something else. Two other machines with the very same setup had no issue like this till now...
Just my two pence: Check the wiring, especially the power lines in vicinity of the boards.
If two identical machines have no problems, but a third one shows spurious fails on multiple actors at once (Heater refuses to work, "Driver 1.0, 1.1 and 1.2 not found"), if, on top, the same problem shows up again after shipping the machine, my first bet is on a less-than-optimal crimp. The "Driver 1.0, 1.1 and 1.2 not found" message indicate a potential loss of power to the 3HC, but these lines should have one or more connectors in common with the heaters, too. That's where I would look first.
But, of course, it's only a speculation. Good luck!0
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Thanks for your answer!
I agree with you that it is very strange.I was just surprised that after an M303 H1... it worked again...
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@cr3d said in RRF 3.4 beta 7 | Heater and Driver Problem!:
I was just surprised that after an M303 H1... it worked again...
Sure. But from the software side, the motion system (e.g. the stepper drivers) is far away from the heaters, I would have to look for two independent faults happening at once - which, on top, is not reproducible. Using Occam's razor, the search for a single error common to both events is more promising: that's why I would look at the power lines. Call me lazy
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@CR3D did you already try upgrading to 3.4RC1 which was released last week?
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@cr3d it's a known issue in beta7 that sometimes a heater will not heat up. Usually it only occurs after doing a print and then letting the heater cool down to below 25C. Fixed in RC1.
i will take a look...