Disabling Heater Fault
-
Isn't that possible with an algorithm to play for real-time tuning?
like measured time 5 seconds at present or during the printing:- Within the cut-in and cut-off, if more than 5 seconds simply duty cycle activates for longer duty until continues power.
- if heating is shorter than 5 seconds, the duty cycle lowers the power.
- If the temperature is out of the limit is due to the thermal expansions, lower the duty or cut-off thresholds.
It seems simple and more functioning to me. Measured time is even completely unnecessary. if the temperature goes out of the limit, simply auto-decrease the duty cycle.
-
@sozkan What you describe is close to how bang-bang mode works. So you could try that instead of using PID (change the "B" parameter). It might be a better option for that particular hot end.
But IMO Dyze design are ducking their responsibilities by producing a device and not suggesting how to control it. The PID algorithm works fine for every other hot end - even those with multiple heaters ( as in my case using two heat zones, each with an 80 watt heater cartridge).
-
@deckingman said in Disabling Heater Fault:
@sozkan What you describe is close to how bang-bang mode works. So you could try that instead of using PID (change the "B" parameter). It might be a better option for that particular hot end.
But IMO Dyze design are ducking their responsibilities by producing a device and not suggesting how to control it. The PID algorithm works fine for every other hot end - even those with multiple heaters ( as in my case using two heat zones, each with an 80 watt heater cartridge).
Hi, thank you for the all suggestions. I am very grateful. I simply change to B1 and a bit play with PWM. Now it works much more stable. Thankfully, the problem is solved now.
By the way, the 2.5 mm of dyze hot end seems cracked due to my last year's hard start trial. They say the resin-like leakage seems like occurred from the crack. Therefore, they suggest for return for repair.
-
Hello All,
I just wanted to share the successful result:
The only target for me right now is filament detection. 5 kg filament consumed so fast
with no sense. -
Hello again,
During the 30 hours printing again fault again. it says Heater 0 fault, but a fault on Heater 1. Temperature drop to 203 at Heater 1 with no sense.
I don't understand, The fault detection can sense temperature from the sensor! The algorithm cannot activate power on time!Isn't it possible to re-test and continue printing later?
-
@sozkan said in Disabling Heater Fault:
RepRapFirmware
Hi,
This is the latest firmware. I have just updated.
Heater 2 strangely spiked 480 celsius. have noticed this on long moves. Is this not sensing sensors during the long gCode interpretation?
-
@sozkan That rapid transient spike looks like a wiring issue or bad connection somewhere. There is no way that the hot end could heat and cool that rapidly so the problem must be with the temperature sensor circuit. It's probably a bad crimp or wire which makes and breaks connection as the carriage moves around.
-
@sozkan hi! could you post your Typhoon configs?
-
Hi @sozkan !
Could you post your Typhoon config?
We are using the Duet2/Eth board with PT100 addon board and are struggling with the Typhoon.
Any help would be much appreciated. -
@djstree It's probably better to create a new thread where you describe your problem. I assume you've already checked out automatic heater tuning.
