Heater Fault - Temperature raising slowly

RockB

Hello,

I am using a pellet extruder (https://mahor.xyz/) with roto toolboard and Duet3 6HC mainboard. Running FW 3.5.2. I have already performed autotuning using M303 and have updated the M307 in config.g

; Sensors
M308 S2 P"22.temp1" Y"pt1000" A"Tool3_Temp";  T4606017 B5848 C5.548428e-8 R4700 H0 L0 ; configure sensor #2 - Pellet extruder

; Heaters
M950 H2 C"22.out0" T2 ; create heater #2
M143 H2 P0 T1 C0 S300 A0 ; configure heater monitor #0 for heater #2
M307 H2 R3.732 K0.814:0.000 D3.14 E1.35 S1.00 B0 V22.0
;M307 H2 R2.43 D5.5 E1.35 K0.56 B0 ; configure model of heater #2
M570 H2 P20 T20 ; An anomaly on heater 2 must persist for 20 seconds, and must be greater or less than 20C from the setpoint, to raise a heater fault.

I get the following error during heating. Also tried increasing limits in M570, but still gives me an error.

How do I resolve this error?

Phaedrux

What command did you use to tune the extruder heater?

Are the ambient conditions different now than from the tuning?

RockB

@Phaedrux said in Heater Fault - Temperature raising slowly:

What command did you use to tune the extruder heater?

M303 H2 S230

Are the ambient conditions different now than from the tuning?

No.

Phaedrux

I'd suggest re-tuning it from dead cold using M303 T0 S230 to tune it as a tool rather than just the heater. This will incorporate the cooling fan a well.

@RockB said in Heater Fault - Temperature raising slowly:

;M307 H2 R2.43 D5.5 E1.35 K0.56 B0 ; configure model of heater #2

Was this your previous tuning results?