Duet 3 MB 6HC - 12V pinout - Current?

[pro3d]

I tried to read up on this 12V pin marked green. Not sure if it is part of the fan ports or separate so I wonder how much current I can pull from this?

[Nightowl]

I may be wrong, but isn't the 12V limited to 800mA, as per the Operating Limits table in the documentation?

[pro3d]

@nightowl
I am not sure this is part of those pins?

[moth4017]

Looks like the 12V output is limited to 1A in total for all 12V devices

[jay_s_uk]

@moth4017 don't forget the 5v and 3.3v are also generated from the 12v supply

[Nightowl]

@pro3d Hmm, I think the table is quite specific, but I'm happy to be corrected.

I'll be using those (2+3) pins to supply and control the 0-10V PWM-to-Voltage module for my AMB milling motor, when I eventually get it.

[dc42]

@nightowl yes that 12V connector is include din the total 12V current. Your PWM-to-10V converter should draw only a few mA.

[pro3d]

@dc42

Thanks. I need to power a ESP32. Think it draws some 350ma ish

[dc42]

@pro3d your ESP32 will need 3.3V, not 12V.

[deckingman]

@dc42 said in Duet 3 MB 6HC - 12V pinout - Current?:

@pro3d your ESP32 will need 3.3V, not 12V.

David. For info, it depends a bit on the board. Most ESP32 dev boards have the option to connect unregulated power up to 12V to the 5V and gnd pins but the voltage regulator will get a bit warm at anything above 6 to 7 volts. If one uses 3.3V it must be regulated and connected between 3.3V and gnd. The third (and often simplest) option is to power via the inbuilt usb.

[pro3d]

@dc42

The ESP is connected to a dev board