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[Solved] MK2S + MMU2S separate power supplies  

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Loenja
(@loenja)
Active Member
MK2S + MMU2S separate power supplies

Hi All,
Would it be possible to run the MMU2S unit off a separate 24v power supply as this would reduce the driver whine produced when running the TMCs off 12v.
I was thinking a similar unit to the original power supply but in 24v with a common ground.

 

Best Answer by Loenja:

Update: I have installed a new 24V psu and it works wonderfully, although it didn't fix my driver issue I asked about on another thread (also fixed btw, by means of a reflow of the area around the TMC chip).

drivers are much quieter now!

Napsal : 26/11/2020 6:37 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: MK2S + MMU2S separate power supplies

that should be possible, as long as the grounds are common. however the higher voltage will only address the MMU2 motors / drivers, not the Mk2.5 motors/drivers

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Napsal : 26/11/2020 8:34 pm
Loenja
(@loenja)
Active Member
Topic starter answered:
RE: MK2S + MMU2S separate power supplies
Posted by: @joantabb

that should be possible, as long as the grounds are common. however the higher voltage will only address the MMU2 motors / drivers, not the Mk2.5 motors/drivers

regards Joan

They are the only ones whining at the moment, so perfect.

Napsal : 26/11/2020 9:04 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: MK2S + MMU2S separate power supplies

Good Luck! 

 

Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Napsal : 27/11/2020 8:43 pm
Loenja
(@loenja)
Active Member
Topic starter answered:
Update: MK2S + MMU2S separate power supplies

Update: I have installed a new 24V psu and it works wonderfully, although it didn't fix my driver issue I asked about on another thread (also fixed btw, by means of a reflow of the area around the TMC chip).

drivers are much quieter now!

Napsal : 03/12/2020 2:51 pm
CybrSage se líbí
Chris P
(@chris-p-4)
Eminent Member
how to do the wiring
Posted by: @loenja

Update: I have installed a new 24V psu and it works wonderfully, although it didn't fix my driver issue I asked about on another thread (also fixed btw, by means of a reflow of the area around the TMC chip).

drivers are much quieter now!

How did you do the wiring? I'm trying to solve a power issue with the MMU2S with a spare powersupply I have lying around, but unsure how to set up the  wiring?

any help is appriciated! thanks!

Napsal : 22/07/2021 3:58 pm
Loenja
(@loenja)
Active Member
Topic starter answered:
Dual PSU wiring

 

Posted by: @cowboyhenk
Posted by: @loenja

Update: I have installed a new 24V psu and it works wonderfully, although it didn't fix my driver issue I asked about on another thread (also fixed btw, by means of a reflow of the area around the TMC chip).

drivers are much quieter now!

How did you do the wiring? I'm trying to solve a power issue with the MMU2S with a spare powersupply I have lying around, but unsure how to set up the  wiring?

any help is appriciated! thanks!

Connect the Ground of the 12V supply to the ground of the 24V supply.

Connect everything as usual.

 

Napsal : 22/07/2021 10:22 pm
Chris P
(@chris-p-4)
Eminent Member
DUAL PSU Wiring

 

Posted by: @loenja

Connect the Ground of the 12V supply to the ground of the 24V supply.

Connect everything as usual.

 

Thanks!! In my case I used a second 24 volt power supply, but this works like a charm! Reset of the unit still happens though 🙁

Napsal : 29/07/2021 8:49 am
RA 2 Storm
(@ra-2-storm)
Active Member
RE: MK2S + MMU2S separate power supplies

What AMP power supply would I need?

Napsal : 22/02/2023 7:00 pm
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