Tool Board Heater Tuning Leading To Faults

[DIY-O-Sphere]

@fcwilt
Not required for PT1000 on Duet3 and Maestro

[Dougal1957]

@diy-o-sphere said in Tool Board Heater Tuning Leading To Faults:

@fcwilt
Not required for PT1000 on Duet3 and Maestro

nor on a wifi/ethernet duet 2 board either just not quite as accurate due to the 4k7 sense resistor rather than the 2k2 one

[KevinMar]

@dougal1957
New parameters: M307 H2 R2.050 C309.100:130.600 D6.20 S1.00 V24.3 B0

Another fault:

(I had been using the fan to cool the hotend down, so ignore values before 11:00)

[fcwilt]

@kevinmar said in Tool Board Heater Tuning Leading To Faults:

@dougal1957
New parameters: M307 H2 R2.050 C309.100:130.600 D6.20 S1.00 V24.3 B0

Another fault:

(I had been using the fan to cool the hotend down, so ignore values before 11:00)

Did you check your config-override.g file to see if it included M307 commands?

Frederick

[KevinMar]

@fcwilt it included M307 commands that were generated from the autotuning and saved using M500

[fcwilt]

@kevinmar said in Tool Board Heater Tuning Leading To Faults:

@fcwilt it included M307 commands that were generated from the autotuning and saved using M500

So we can ignore the ones in your config.g file?

Frederick

[KevinMar]

@fcwilt They're identical

[fcwilt]

@kevinmar said in Tool Board Heater Tuning Leading To Faults:

@fcwilt They're identical

So you copied the lines from the config-override.g file and put them into your config.g file?

I assume you re-booted.

Frederick

[KevinMar]

@fcwilt Affirmative

[fcwilt]

@kevinmar said in Tool Board Heater Tuning Leading To Faults:

@fcwilt Affirmative

Strange problem you are having.

You posted a screen shot showing heaters Ex0, Ex1 and Ex3 faulted.

Were all three heating at the time?

Frederick

[DIY-O-Sphere]

@KevinMar

M308 S1 P"20.temp0" Y"thermistor" T100000 B4725 C7.06e-8 A"Ex0"

On T0 you use a thermistor but not with the other tools?
What is your tuning command.

[KevinMar]

@fcwilt Yes, all 3 faulted (nearly) simultaneously, when heating is initiated simultaneously

[KevinMar]

@diy-o-sphere Changed to thermistor (actually changed hardware) just to try troubleshooting

[DIY-O-Sphere]

@kevinmar
CAN addresses set correctly?

[dc42]

@kevinmar did you see my comment about retuning with a silicone sock in place, and my suggestion to reduce the M307 R parameter?

[KevinMar]

@dc42 said in Tool Board Heater Tuning Leading To Faults:

If after re-tuning with the silicone sock on (if necessary) the heaters still fault, you can try reducing the M307 R parameter. Try a 30% reduction.

I added the sock, retuned, and it still faulted.

I reduced R from 2 to 1.5 and even to 1.0 and it didn't help

[KevinMar]

@diy-o-sphere lol yeah, boards working fine otherwise

[dc42]

@kevinmar said in Tool Board Heater Tuning Leading To Faults:

@dc42 said in Tool Board Heater Tuning Leading To Faults:

If after re-tuning with the silicone sock on (if necessary) the heaters still fault, you can try reducing the M307 R parameter. Try a 30% reduction.

I added the sock, retuned, and it still faulted.

I reduced R from 2 to 1.5 and it didn't help

Did the R value change much when you added the sock, or was it just the C values that changed?

[fcwilt]

@kevinmar said in Tool Board Heater Tuning Leading To Faults:

@fcwilt Yes, all 3 faulted (nearly) simultaneously, when heating is initiated simultaneously

If you execute a M570 command from the DWC Console what value does it report?

Frederick

[KevinMar]

@dc42 C values changed when tuning with the sock.

R values were a manual change