Dead duet?
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its E0 heat lead i think
and im not using metal washerwhat can i do now to fix this
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If all the LEDs on the Duet are off, then no power is reaching the board. Either your PSU has stopped working, or the VIN terminal block screws are no longer tight, or something is shorting the PSU out.
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you have right again
the psu dont provide 24v any more
thank for the fast support ! -
one of the v+ port has gone bad on the psu
the other works finne now
duet is up and runing again
thanks again!hopfully this is the end for all my problems for now
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how bad is this ?
Supply voltage: min 20.8, current 23.7, max 24.5, under voltage events: 0, over voltage events: 0do i need to get a new psu ?
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You might want to measure the voltage with the bed heater fully on and with it off.
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DC42 I think this may be what has happened to meas well. I got a reading of 1.4-1.7 ohms from the VSSA to GRD, too low? I have 2000c on the hot end connections, but the bed reads normal room temp.
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Check your M305 P1 parameters. If they are correct at least approximately, then a reading of 2000c on a thermistor channel normally means you have a shorted thermistor, or a short between the thermistor and ground.
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The line is set up for the E3D thermistor, double checked it to be sure it still the way it has been. all the VSSA read the same with a meter, However when I plug the hot end on to the bed slot it reads normally. I found the Wiki page on the fuse: https://duet3d.com/wiki/Connector_and_spare_part_numbers#VSSA_fuse
I know I could solder the fuse like in the picture. the side with the resistor would be a problem for me going to the endstop ground. My hand wiggles on a good day, and shakes on the not so good ones. those terminals are pretty close together. I think I end up making a mess of things. I looking for someone who could do the work for me with the proper tools. Could that ground go to a different spot ( or is that just the closest. place)
I found one of the part numbers for the fuse, there are a lot of resistors on there that are all 10k is this one acceptable or is there another one they carry that would be better in your opinion?
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Yes that 10K resistor is fine. Or you can leave it out, but then the firmware won't tell you if you get another VSSA short.
