Chamber Heater Sensor Fault
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I've added a chamber heater and associated PT1000 to my setup for printing PA and other high-temp filaments. It works great for that, but I'm running into an issue when printing lower temp filaments where I don't want to heat the chamber. The problem is that my bed is quite large and ends up heating up the chamber. The chamber sensor detects this and faults out. What is the preferred method of addressing this sort of issue?
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@dbenhart said in Chamber Heater Sensor Fault:
The chamber sensor detects this and faults out.
What fault are you getting? You could disable the sensor entirely for those prints, probably with a macro that gets called from the slicer filament gcode section?
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@Phaedrux Unfortunately, my printer is out of commission for a day or so, so I don't have the exact wording. I believe it is a temp excursion fault.
I can certainly try disabling the sensor for those prints, I was just unsure of whether this is the best-practice. This is the first printer I've used where I'm trying to implement active temperature control.
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@dbenhart said in Chamber Heater Sensor Fault:
, I was just unsure of whether this is the best-practice.
If the chamber is unused, then there is no reason not to disable it.
I'm curious what the error was though, I didn't think a temp change on an unused heater would cause an issue, but perhaps the watchdog is still watching.
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@Phaedrux Here is the error:
I will try disabling the heater to confirm that that works for the prints where active chamber control is not desired. Thank you for that suggestion.
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@dbenhart Check what heater monitors are on that heater by sending
M143 H2. You can disable the heater monitor withM143 H2 P0 C-1. See https://docs.duet3d.com/en/User_manual/Reference/Gcodes#m143-maximum-heater-temperatureIan
