How do I wire 5Vext on a 6xd?

markz

@tmitch205 Thanks. It's the 1.0 board. Phew, I was about to solder in some posts when I reread the doc again.

Rushmere3D

@markz the other pins aren't soldered in by default now.

markz

Next Question: in the duet2 I had two 5V fan outputs I was using to control 5VDC relays. It looks like that's no longer an option in the 6XD. What should I use to control two 5V (100mA) relays? I'm thinking of just swapping them out for 24VDC relays - which is my Vin but would rather not.

If I do swap to 24V volt relays (which would be 20mA) should I use the high power outputs ? It's not a printer, there are no heaters.

markz

@rushmere3d not soldering in pins is a serious feature since I was planning to jumper the middle one cuz I read the doc wrong.

jay_s_uk

@markz the VFD output can be used for one as that's 5v. Are you just using them for ON/OFF or PWM control?

markz

@jay_s_uk Just on/off.

I've already ordered 2 24V relays but still would rather not swap them in if there's another 5V output I could use. Thank you.

jay_s_uk

@markz you may be able to use an IO out. Otherwise take 5v from elsewhere on the board and use that with a fan output

markz

@jay_s_uk If I read the schematic right the output is just a mosfet load/ground so it looks like I could use 2 pins of (+5V_int , fan-io output) to drive the relay?

jay_s_uk

@markz yes, it just switches on ground. So 5v from somewhere to the switch output on the fan

markz

@jay_s_uk Thanks a bunch.

markz

@jay_s_uk This sounds strange but looking at the circuit can't I just run 5V to the V_OUT_LC_2 post and not use a jumper to either usual voltage? As far as I can tell it's a small self-contained run to out6,7,8 which works for me.

jay_s_uk

@markz that should also work

dc42

@markz said in How do I wire 5Vext on a 6xd?:

@jay_s_uk This sounds strange but looking at the circuit can't I just run 5V to the V_OUT_LC_2 post and not use a jumper to either usual voltage? As far as I can tell it's a small self-contained run to out6,7,8 which works for me.

Yes it's designed to allow you to supply a different voltage to the centre post of the 3-pin voltage selector block.

markz

@dc42 @jay_s_uk Thank you both for the info.

ps: I just tried this and it worked like a champ.