Page 1 of 2
Gt2560 - plugin power supply for logical part only
Posted: Sun Apr 29, 2018 11:51 pm
by TM-234
Hi, I am using a ATX PSU to power my 3D printer, I power direclty my two externals Mosfets from ATX PSU, one for heatbed and one for hotend.
QUESTION ; to power only logical part of the board, I am looking for to know wich side of the dual power feed I need to plug in... as show on my image... is it side A or side B ? Many thanks in advance.
[attachment=0]Power GT2560.JPG[/attachment]
Re: Gt2560 - plugin power supply for logical part only
Posted: Wed May 02, 2018 6:57 pm
by _kaktus_
If section A - has an electrical transition to section B - it does not matter. The rest (section A+ B+) is analogously.
However, it is important to connect a set of wires.
Re: Gt2560 - plugin power supply for logical part only
Posted: Sun May 06, 2018 9:38 am
by TM-234
Sorry I don't get it, are you saying, although my hot end and hotbed is powered directly from my ATX psu, still I need to connect 2 X 12V on the board? In the future, I will power my extra fan directly from my ATX psu.
Re: Gt2560 - plugin power supply for logical part only
Posted: Sun May 06, 2018 9:39 am
by TM-234
Error
Re: Gt2560 - plugin power supply for logical part only
Posted: Mon May 07, 2018 12:14 pm
by _kaktus_
Can you check whether pin A- is connected to pin B-
And whether pin A- is connected to pin A+
Re: Gt2560 - plugin power supply for logical part only
Posted: Tue May 08, 2018 6:57 am
by TM-234
Here is the image from the back of the board.
[attachment=0]Capture.JPG[/attachment]
Re: Gt2560 - plugin power supply for logical part only
Posted: Tue May 08, 2018 12:30 pm
by _kaktus_
Beautiful photography but it does not bring anything.
To check the connections, you can use a multimeter with the continuity test function.
You can also check the connections in the wiring diagram if you have one.
Re: Gt2560 - plugin power supply for logical part only
Posted: Fri May 11, 2018 4:28 pm
by Gingko
Re: Gt2560 - plugin power supply for logical part only
Posted: Sat May 12, 2018 12:49 am
by TM-234
Thanks for your help Gingko!
Re: Gt2560 - plugin power supply for logical part only
Posted: Sat May 12, 2018 1:09 am
by _kaktus_
Bravo Gingko.
I love such hot details.
The diagram shows that it is impossible to separate the power supply as a colleague would like to do.
I place a clipping.
[attachment=0]wycinek_zasilanie_GT2560_vA+.png[/attachment]
Regardless of whether it connects the cable to the A+ or B+ pins, the whole controller is powered.
Therefore I would still use all the pins.