Help PID tuning Dyzend Pro

chris974M

@Phaedrux
https://duet3d.dozuki.com/Wiki/Tuning_the_heater_temperature_control#Section_Manual_adjustments_to_the_heater_model_parameters

J'ai essayer plusieurs paramètre sans succès

Phaedrux

Can you try with these settings in config.g and delete the config-override.g and retry tuning.

M308 S1 P"e0temp" Y"thermistor" T4606017 B5848 C5.548428e-8 ; configure sensor 1 as thermistor on pin e0temp
M950 H1 C"e0heat" T1                                        ; create nozzle heater output on e0heat and map it to sensor 1
M307 H1 A580.4 C256.6 D6.4 S0.50
M143 H1 S510

chris974M

@Phaedrux
C’était mes paramètres de départ impossible avec cela de faire un auto tuning sans préchauffer

Phaedrux

I'm not sure what else to say. This is a very difficult thermistor/heater combo to auto tube. 50W and 500c. I think your best chance will be to preheat as little as possible so that you can get an auto tune complete and then manually adjust the PID values to try and get it stable at temp.

How does it perform with the values provided by Dyze without auto tuning?

chris974M

la température regler a 220 pour impression elle monte a 231 et descend a 215 puis se mets en fault

Phaedrux

You can try using M570 H1 P60 T25 S120 to change the sensitivity of heater fault detection to allow time for it to stabilize.

https://duet3d.dozuki.com/Wiki/Gcode#Section_M570_Configure_heater_fault_detection

chris974M

Ok i try

chris974M

Si nécessaire, vous pouvez effectuer des ajustements manuels des paramètres du modèle M307, comme suit:

Si pendant le chauffage initial, la température dépasse la cible, réduisez le paramètre A. S'il dépasse la cible, augmentez le paramètre A. Essayez de l'augmenter / le réduire de 5% ou 10%.

cela doit etre fait dans config-override.g

Phaedrux

@chris974M It must be done to the M307 command that is being sent last. So if you have an M307 H1 in config-override.g then you should change that one, but as I said before, cut and paste it into config.g and remove it from config-override.

chris974M

c'est difficile a comprendre et régler

chris974M

Error: Heater 1 fault: temperature excursion exceeded 15.0°C (target 220.0°C, actual 236.8°C)

Phaedrux

Did you add the M570 command I posted?

chris974M

non desoler j'ai oublier je recommence

chris974M

maintenant j'ai juste 4C d'écart regler 220 et monte jusqua 224 puis redescend a 220

chris974M

Phaedrux

Ok, so you may be able to adjust the PID values now to get it a bit more stable. Try increasing the D value a bit.

chris974M

j'essaye de trouver la bonne valeur D

chris974M

j'ai tout essayer rien ne marche impossible de stabiliser la température

Phaedrux

What values are you using? and how are you changing them?

That heater is really intended for high temps, if you're only going to be printing in the 200c range why not just change out for a better matched heater. Dyze has a 300c version that should be much easier to tune.

Have you tried tuning this heater to a hotter temperature like 350 or more?

chris974M

M307 H1 A580.4 C256.6 D44 S0.50

Je les change directement dans le config.g