heater faults while printing

[gnatman]

so @dc42 with the above M570, it ran fine during that print. I was just about to print another and I received the heater fault again
Error: Heating fault on heater 1, temperature excursion exceeded 15.0°C
Resume state saved

[dc42]

@gnatman said in heater faults while printing:

@dc42 Sorry missed the link within the wiki. M570 H2/H1 S120 currently.. we will see what it does now.

I suggest you read https://duet3d.dozuki.com/Wiki/Gcode#Section_M570_Configure_heater_fault_detection because your M570 command is not correct except for very old firmware.

[gnatman]

@dc42 M507 H1 P120 T20 S120
ok, does this look more current?

[gnatman]

Now this is odd. Huge drop in the graphic when it was sent to "print" and the head moved!!https://i11.photobucket.com/albums/a170/Z28Kid/Screen Shot 2019-10-17 at 7.40.53 PM_zpscvxyztdk.png

[Veti]

the link does not work. you can upload pictures directly to the forum.

[gnatman]

Sorry thats the button I was looking for last night. This was shortly after when the print head moved and it was starting to print. durning tunes the graph is smooth.

sitting idle there is a little hickup

This as soon as I went to home z.

[pipersw]

It seem a voltage drop from your power supply. Check V_IN while the issue occur.
If you have sense pins on your psu, wire them with cable cross to V_IN board, I see a very good regulation since I have made the modification.

[Veti]

the actual temperature can not drop instantly by 50 degrees.
there might be a loose connection or something else wrong with your thermistor.

[gnatman]

@Veti Thanks, I just switched H2 over to H1 thermistor to see if maybe it had a loose connection as you describe. So far it's heating up alright. Very well could be a bad wiring job on my connections.

[gnatman]

It will fault just sitting, I think the fault during movement was a coincidence