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Post by funbun on Apr 20, 2022 12:52:57 GMT
How many power supplies can you run in one case? Considering these digital modules want lots of power, is it safe to add an extra power supply & adapter to a case?
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Post by tIB on Apr 20, 2022 14:45:16 GMT
In a related question I'd like to know whether the power module is limited to a certain amperage, or if it will pull whatever is plugged in to it. Ie will changing my wallwart supply to 2 amps provide 2A of power, or is there a limit (in the modules circuit) on what it is able to provide?
The answer to that might help you funbun, since it might be as simple as uprating your psu.
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Post by MikMo on Apr 20, 2022 14:59:56 GMT
I think you can only have one powersupply connected to the same bus. So If more power is needed two cases is required, and they can not be connected with the case connection kit (whck connects the two busses) The rack link kit can as far as i remember be used, as you can disable the 5V connection on the link. They should only share the same ground.
As for the amps, the modules will try to draw whatever they need no less no more. If the sum of the current draw exceeds the powersupplys capacity some modules will be starved, and especially the digital modules will not like that.
You can use a larger PS as long as the voltage and polarity is correct.
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Post by pt3r on Apr 20, 2022 16:03:56 GMT
Sure but keep in mind that your power module is also limited to a max amperage it can provide even if you were to connect a wall wart with a higher amperage.
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Post by tIB on Apr 20, 2022 16:09:28 GMT
So there's a couple of different takes there on whether or not the amperage of the PSU is limited by the module, in our case the master or power modules.
I'd assumed that uprating my supply (I'm running a 2a supply currently) would provide up to 2 amps of juice (if needed), but I'm unclear on whether that is limited by my power module?
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Post by MikMo on Apr 20, 2022 19:37:38 GMT
There is (most likely) a voltage regulator in the master (power) module that converts 9V to 5V. It has a maximun rating, i don't know what it is but i think Robert once mentioned it somewhere.
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Post by pt3r on Apr 20, 2022 21:24:46 GMT
There is (most likely) a voltage regulator in the master (power) module that converts 9V to 5V. It has a maximun rating, i don't know what it is but i think Robert once mentioned it somewhere. Yes indeed it was in the forum.aemodular.com/thread/1709/keep-racks-juicy Kyaa mentions the data sheet of the regulator there. |
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Post by tIB on Apr 21, 2022 6:26:43 GMT
Good info there, thanks both - somewhat surprised that the recommended max pull is 800ma and even more so that my 3x16 with lots of digitals will remain quite a bit under that even when I add 2x O_c eventually. I'd have thought 800ma is a conservative estimate based on that power sheet - not suggesting anyone does but it looks like it would be good for a little over 1A without much stress on it/issue. Another thing I wondered was if the whole system could be powered off something like the rapberry pi PSU, which are relatively high amperage and provide (reasonably clean) 5v from source. I remember someone powering a system off USB and that was going to be a DIY avenue I looked at if I was exceeding pull. Edit: info here about the USB diy power: forum.aemodular.com/thread/1389/ae-modular-microusb-power-adapter |
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Post by admin on Apr 21, 2022 6:41:49 GMT
The Grid will tell you relatively accurately how many modules you can power with one Master or Power module. grid.aemodular.com/Each module definition in the grid has a power consumption rating which Robert and other manufacturers have provided. When you start a new rack and add the Master module you will see that you get 800mA to play with. |
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Post by pt3r on Apr 21, 2022 6:43:00 GMT
I must admit that, for me, the whole powering an AE rack lives in the same shadowy realms like chasing hum in audio circuits.
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stora
New Member
Posts: 25
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Post by stora on May 1, 2022 17:00:53 GMT
After adding the ornament and crime module to my system I've started to notice that the display on the MultiFX module is blank.
It is nice and bright on initial start up and then fades away.
Also the cv output from ornament and crime changes at the same time.
Using grid.aemodular.com my system is pulling about 450.2mA.
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Post by pt3r on May 2, 2022 5:29:52 GMT
That does not sound normal. If you take out the 0_C is your situation is back to normal?
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stora
New Member
Posts: 25
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Post by stora on May 2, 2022 14:00:35 GMT
That does not sound normal. If you take out the 0_C is your situation is back to normal? Yes it is back to normal if I take out the O_C My next step is to replace the AC to DC wall adaptor in case this is failing somehow. |
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