Heated chamber pt100

b3nitro

Hi Guys,

I've followed both topic on connecting pt100 and connecting a heated chamber but I'm facing an issue I think with the PT100 part

Everytime I assign the second pt100 (2wires with jumpers) to the heated chamber (first pt100 is in the hotend, 4wire no jumpers), I have an error in the duet web control and hotend shows 2000*

Hardware:
-duet2 ethernet
-pt100 daughter board
-fusion f410 printer
-pt100 is tested and working, not touching anywhere for interference

Here is what I had

; Heated chamber
M141 H2						; Assign chamber heater to heater 2
M305 P2 X201					; Chamber pt100
M307 H2 B1 					; chamber heater operates in bang-bang mode
M143 H2 S60 					; Set temperature limit for chamber to 60C

Heater 2 is connected to ssr to controll the heaters, they where working fine with external controller, just want to put everything on the board and have chamber temp in my profiles..

Any help will be really apreciated

Thank you!

Phaedrux

Can you show a photo of the daughterboard connections?
Which pins are you using for the 2-wire PT100 and where are the jumpers installed?

b3nitro

@phaedrux

Thank you for your quick answer, the probe for the heated chamber is on RTD2 pin 2-3, jumpers 1-2, 3-4

See attached picture!

Phaedrux

Can you please post your full config.g and the results of sending M122 and M98 P"config.g"?

b3nitro

@phaedrux

Damn it, was about to show you the error I had buts looks like its working, now I have to tune it to avoid temp raising to slow error

Thanks for your help, sorry wasting your time

Phaedrux

@b3nitro said in Heated chamber pt100:

Thanks for your help, sorry wasting your time

As long as it's working now, no waste at all.

dc42

FWIW if it happens again, send M305 P2 from the console to see what the nature of the error is. If using RRF3 is would be M308 S2 assuming it was sensor 2.