No 5V and 3V when PowerUp. I think something burn...
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Hi!
I think something Burn on my beloved Duet Wiffi 2. (V1.03) Now when I power up the printer I do not see anymore the blue lights, the 5 V and 3V green lights are not full illuminated and the Wiffi do not connect. But if I connect the USB cable, all light turn ON and the wifii connect. In addition if I connect the USB while powering up, the PanelDue show a "Overpower" message (29v....).... ???!!!!
I happen after moving my PanelDue to a different location on the printer and in the same time connecting a brand new Creality BLTouch. My wiring for the BLTouch seem perfect (WHITE to ZProbe, The BLACK next to it to Zprobe ground// The RED to 5V PIN, the BLUE on the ground PIN and the YELLOW to the Signal PIN Heater 3). I have try to disconnect the BLTouch and the Screen but no change.
Badly I have found the Heatsink for the Z chips have detach and was touching the board. Maybe I have burn a voltage regulator...
Is it difficult to fix?
Thank you!
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@jtri said in No 5V and 3V when PowerUp. I think something burn...:
Creality BLTouch
Red is never 5V on the Crealty version BLTouch....
See the wire order in the info here:
https://duet3d.dozuki.com/Wiki/Connecting_a_Z_probe#Section_BLTouchMine is the third version: Red ground and black positive 5V!
It's likely shorted the 5V supply.
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@rjenkinsgb
Crap!!!! Thank you for the reply. Is is possible to replace the 5v supply??? Or the Board is dead???. Before ordering a 250$ board (canadian$) I want to be sure. Creality do not provide any usefull wiring info.
So I need to follow the pin order on the BLTouch connector...Thank you again
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@jtri
I believe it will work with an external 5V supply - such as a buck regulator module fed from the main supply.That should be OK as long as nothing on the board is overheating when the supplies are connected. If it is, the 5V regulator will need repairing.
If you buy one of the buck modules from Amazon or Ebay etc., get one rated at least three times more than you think is required, as often the rating the advertisers quote with those is the short term peak, just before they burn out...
Also make sure you adjust the module output voltage to 5V before connecting that to the Duet 5V input; re-adjust again once it is connected.
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Thank you for your support. It is really appreciated!!!
If I understand I need to connect my external 5V supply to the PIN in the GREEN square and switch the INT 5V Jumper (PINK Square) to the EXT 5V pine...? Is it that? I have already a bunch of 3A Buck Modules. I just need to find how many Amp the Board, the BLTouch (found it... 15ma/300ma) and the PanelDue 5 need to operate. So far I get no luck to find this information for the board and the screen... If someone know where I can find I will appreciate.
In other I think I will buy a new one for now and see if I can save the burn one for a personal project I began to think of.... Anyone know where is the internal 5V regulator (supply) on the board?
Thanks.
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@jtri said in No 5V and 3V when PowerUp. I think something burn...:
If I understand I need to connect my external 5V supply to the PIN in the GREEN square and switch the INT 5V Jumper (PINK Square) to the EXT 5V pine...? Is it that?
Yes, that's it. A 3A module should do fine.
The full schematic is here - see U3, an "A4403"
https://github.com/Duet3D/Duet-2-Hardware/blob/master/Duet2/Old versions/Duet2v1.03/Duet2_Schematic_v1.03.pdf(That's one thing I really like about Duet boards etc., they provide all the technical info!)
Robert J.
Printers: Overlord pro, Kossel XL+ with Duet 6HC and "Frankentron", TronXY X5SA Pro converted to E3D toolchange with Duet 6HC and 1LC toolboards.
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@rjenkinsgb Thank you so much for your support. I will give it a try with a external 5V Buck later today. I hope it will work until the new card will arrive !!!
I really have fall in love with the Duet system. It is expensive (Especially for a Canadian lol) but the system "own" is price.
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@jtri
Great news!If the regulator IC is not getting hot then it's not affecting the external 5V - it is no different to using a separate 5V source by choice, eg. so the main 24V system can be switched on & off by the duet / M codes.
I do that with my Kossel, so it can shut the main supply of when finished a print.
