Bed Heater fault [3.4.B5]
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@siam I am not sure why the tuning is reporting the bed can heat at 0.46 deg/s but is only heating at 0.1 deg/s can you try changing your M307 command to lower the R parameter (try R0.3).
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@t3p3tony said in Bed Heater fault [3.4.B5]:
I am not sure why the tuning is reporting the bed can heat at 0.46 deg/s but is only heating at 0.1 deg/s
then there are two of us
If I reduce the R value, The Problem is gone, but I think that this is not the solution maybe (or better Hopefully) I'm wrong, but I think if the final rrf3.4 is out with this PID algorithm more people will have this problem.
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@siam can you post an image of the temp graph that point at which you get the fault, and let me know the target temperature. That way we can see if it's faulting when the PID may be slowing the heating rate to not overshoot, or during the main section of full power heatup.
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@t3p3tony Sorry for The delay I had last week, a small working accident. I recorded a Video from The heating Process, you can find the heating error at 1:20 min. 2:40 min. and 4:10 min.
https://kleinersonnenschein.eu/heaterror.mp4 if you need more tests, let me know!
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@siam thanks that's helpful.
I measured the first minute of your video the bed heater raised by 17.7 degrees in 60 seconds so that is an R of 0.295 so Changing R to 0.29 is a good idea.
Once you have done that, If you don't mind recording a M303 tuning for the bed that would be super helpful. I am curious why the tuning is suggesting an R of 0.46
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@t3p3tony with R0.29 the heating was successful! Now I have to wait for cooldown of the bed, and then I will start the PID tuning I think this I can do this tomorrow
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@t3p3tony and here is a video from the PID tuning process https://kleinersonnenschein.eu/pidtuning.mp4
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undefined SIam referenced this topic
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Hey @SIam Did you find a solution for this? I've having the same problem with firmware 3.4.0. After reading this thread, I think I can tweak my R#, but this seems like a band-aid not a real solution. Obviously I would prefer if Auto-Tune gave me working values.
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Did anyone fix this issue? I am having the same issue with my large bed
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@Skan can you start a new thread please and provide all the relevant information
