Author Topic: MC 050 - 120 Pins P47 - P50 Power Supply +  (Read 3026 times)

Offline Pankaj

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MC 050 - 120 Pins P47 - P50 Power Supply +
« on: November 03, 2015, 09:00:50 AM »
Hi,

As per MC 050-120 data sheet Pin C1-P47 to Pin C1-P50 is Power Supply+.

Its also says,

"PCB damage may occur. All device power supply + pins must be connected to battery +."

I missed this caution while setting up controller, just connected first two pins to ground & battery+.

But Now I can see that Pin C1-P47 to pin C1-P50 somehow got connected to battery.

Only possibility is its connected internally, If Yes am I still supposed to connect them to external power supply... :-\ :-\ :-\

-Pankaj


Offline Marbek_Elektronik

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Re: MC 050 - 120 Pins P47 - P50 Power Supply +
« Reply #1 on: November 03, 2015, 11:12:00 AM »
One Pin is able to drive 8 Ampere.
Thats the reason
Marbek Elektronik, Dipl.-Ing. Bernd Konrad
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Offline Mike

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Re: MC 050 - 120 Pins P47 - P50 Power Supply +
« Reply #2 on: November 21, 2019, 02:47:44 PM »
Thanks for the response. I was wondering the same thing. In my case i'm aiming to use those as supplies to switches. Will save me a couple of splices in the harness. Not expecting any issues since my draw through the MC is significantly less than 8A.

Offline FluidPowerTom

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Re: MC 050 - 120 Pins P47 - P50 Power Supply +
« Reply #3 on: November 21, 2019, 07:48:12 PM »
You're planning to use these pins as power sources for switches?  I'm not sure if these pins are all truly common or if there are PCB components such as diodes that might prevent this type of usage.  You might also look into something like a Deutsch buss connector.  They make them up to like 12 position, but for just a couple of switches something like this would work https://laddinc.com/product/?sku=DT04-4P-P021
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Offline G30RG3

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Re: MC 050 - 120 Pins P47 - P50 Power Supply +
« Reply #4 on: November 22, 2019, 03:05:50 PM »
Even if these pins are wired together on the PCB, would you want to risk blowing up a controller in case of a shortcircuit?
I would certainly opt for the extra splices...

Offline Mike

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Re: MC 050 - 120 Pins P47 - P50 Power Supply +
« Reply #5 on: November 22, 2019, 04:48:02 PM »
Is there a file somewhere that gives us any more info on how the pins are setup internally on the controller? Would like to know a bit more on what the limits are for pins. For example I saw one post mentioning that the current limit on the 5v sensor power pin is 450mA which doesn't seem to be mentioned on the datasheet that I was looking at or in the guide hardware template. The datasheet from the website isn't all that descriptive on pin capabilities: https://assets.danfoss.com/documents/DOC152986480969/DOC152986480969.pdf

I do agree with what you guys are saying. Always helps to write down your blunders before you make em.


Offline acmall

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Re: MC 050 - 120 Pins P47 - P50 Power Supply +
« Reply #6 on: November 25, 2019, 08:56:12 AM »

Offline Mike

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Re: MC 050 - 120 Pins P47 - P50 Power Supply +
« Reply #7 on: November 25, 2019, 04:18:59 PM »
perfect, thanks!