Is it ok to parallel Acorn and Ether1616 +24 power supplies?

[slodat]

As the subject says, is it ok to parallel up the +24vdc outputs of the power supplies that Centroid ships with Acorn and Ether1616?

Or do I need to keep them separate?

Or should I just buy a 5a power supply like I did on my mill..?

Thanks in advance!

[slodat]

Disregard. Already ordered a 5a supply.

[Richards]

Connect the GROUNDS together but do NOT connect the +24VDC together. Most switching power supplies auto-regulate the voltage to keep the voltage within the limits in the power supply's spec sheet. If two power supplies are connected in parallel, you can easily end up with a "race" condition where the power supplies start to fight each other. Bad things can happen unless you add specialized circuitry that would cost much more than just buying a bigger power supply.

I use the Centroid supplied power supply only for testing. It's a good power supply, but I normally add enough extra "stuff" that pushes that power supply beyond its ratings. To solve that problem, I normally use a DIN-rail mounted 24VDC 100W (4A) power supply.

Depending on what you're connecting to the Acorn and the Ether 1616 boards, install a power supply that can handle the total current requirements. I normally add in at least a 25% margin and prefer to have 50% extra capability.

If you must use two power supplies, physically separate the loads so that each power supply feeds only the devices assigned to it. Verify that the load on each power supply is well within its design limits.

Edited:
You solved the problem while I was typing.