DIY heated bed not heating fast enough, keeps faulting
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So I just recently updated my Duet 2 WIFI firmware from v1.21 to v3.5.1. The problem I'm having is my DIY heated bed is made up of 14 ARCOL HS50 2R5F chassis mount resistors attached to a 18" x 24" .50" thick aluminum plate. The heated bed is turned on via duet board using a SSR. Due to the thickness and size of the plate it takes time to warm up. Under the old firmware v1.21 the time it took to get to 60C was not a problem, however with the new firmware it will fault out due to how long it is taking to increase temperature. Is there any way to bypass this? I have tried to play with M307 R value with no success.
Current config file.
; Heaters
M950 H0 C"bedheat" T0 ; create heater #0
M307 R.001 D300 H0 B1 S1.00 ; configure model of heater #0
M143 H0 S70 ; configure heater monitor #0 for heater #0Error
"Heater 0 fault: temperature rising too slowly: expected 0.11°C/sec measured 0.01°C/sec" -
Did you retune the heater after updating the firmware?
https://docs.duet3d.com/en/User_manual/Connecting_hardware/Heaters_tuning
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@Phaedrux Thank you for the response! I have tried auto tune and get a similar fault error relating to the time it is taking to get to temperature.
I would like to add that I can finally get it to a set temperature, it just takes several heater fault resets (20+ resets) to get it there.
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@D2xhale said in DIY heated bed not heating fast enough, keeps faulting:
I have tried auto tune and get a similar fault error relating to the time it is taking to get to temperature.
You mean you get an error during tuning, or after using the tuned results?
What results did it tell you to use after tuning?
Did you save those results with M500 or manually enter it in config.g?
Do you have a config-override.g file?
Where is your thermistor located?
Can you share a photo of your bed setup?
What does your heater graph look like?
