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I have recently purchased an SKR 1.4 Turbo which I intend to add to my P3Steel printer. I have an old power supply which appears to have dual outputs [COM COM +V +V]. I want to connect this to the board but the board only has a +V -V connector. The supply is rated at 12 V 15 A which I believe is what is required by the board.

Do I have to connect both +V from the power supply to the +V on the board, and both COM (-V) on the power supply to the -V on the board?

I guess what I'm asking is whether the full 12 V 15 A is only achieved by using both of the outputs together?

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Perry Webb
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raven-king
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1 Answers1

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My Ender 3 has the same connections on the power supply. As received from the factory, the machine runs off one set (mainboard, bed heat, hotend, and fans) and the other set is left open (I think they're connected inside the power supply). Given mine is a 300 W rated supply like yours, you should be okay drawing 15 A connected to either V+ and either COM terminal.

Zeiss Ikon
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