Startup Error Messages

JADoglio

I am using a Duet 3 Mini in a Voron 2.0r2. Everything is working as expected but I get two strange error messages on boot.

The first one says ; Heater 1 predicted max temp at full power is 530 deg
I suspect something is wrong in M307 or M308 but they look OK to me.

The second one says; Heater 2 not found.
Since there is no heater 2 defined in my config file I am not sure why I am getting this.

I had some fans connected as heaters but those commands were rem'ed out so the firmware should not be reading those commands.

Any ideas where these errors are coming from?

config.g.txt

Thanks in advance for any suggestions.

dc42

@JADoglio said in Startup Error Messages:

The first one says ; Heater 1 predicted max temp at full power is 530 deg

That's just warning you that your extruder heater may be over-powered.

@JADoglio said in Startup Error Messages:

The second one says; Heater 2 not found.
Since there is no heater 2 defined in my config file I am not sure why I am getting this.

I don't see anything in your config.g that would cause this, so I suspect that you may previously have had heater 2 configured and there is a command in config-override.g that refers to it.

JADoglio

@dc42

Thanks. Spot on with the Config-Override.g

As for the heater it should be getting 24 V on the OUT 1 pin from the board. The hot end is a stock Revo E3DV6. Is it worth trying to figure it out or do I just ignore it?

Thanks for the quick reply!

dc42

@JADoglio for the Revo the estimate of max temperature calculated by RRF is likely to be an exaggeration, because the heating element has a positive temperature coefficient. However, your heater does appear to be unusually powerful: your M307 H1 R parameter is over 6, whereas for my 24V Revo it is 4.361. Is your PSU set at 24V output, or did you turn up the voltage?

JADoglio

@dc42

Not overpowered. The DWC is reporting 23.9v.

JADoglio

@JADoglio

It will heat the hot end to 240C in about a minute.

JADoglio

@JADoglio

I just ran a M303 H1 S240 tune. The results are more in line with your.

M307 H1 R4.724 K1.037:0.000 D3.49 E1.35 S1.00 B0 V23.9

I put this in my config.g and restarted the board. The warning is gone.

Thanks for the help