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Uninterrupted Power Supply
#1
Hi there,

I have a question regarding the uninterrupted power supply (UPS). As of my understanding, the netPi doesn't come with a UPS. Is it possible to add a UPS to the netPi? We need the system to be able to safely shutdown when there is an (un)intended power loss.

Thanks in advance!

Thomas
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#2
Hello Thomas,

your understanding is correct. netPI is powered by external 24Volts and does not include any battery or similar circuits that could power it for a amount of time until is has shut down. So if you are asking about "is it possible to add a UPS" then I have to say no.

The only chance you have to put in between netPI and your main such as a MINI-DC-UPS/24DC/2 from Phoenix Contact.

Armin
You never fail until you stop trying.“, Albert Einstein (1879 - 1955)

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#3
(April-13th-2018, 07:22 PM)Armin@netPI Wrote: Hello Thomas,

your understanding is correct. netPI is powered by external 24Volts and does not include any battery or similar circuits that could power it for a amount of time until is has shut down. So if you are asking about "is it possible to add a UPS" then I have to say no.

The only chance you have to put in between netPI and your main such as a MINI-DC-UPS/24DC/2 from Phoenix Contact.

Armin

Hello Armin,

Bringing an old topic to life again. If one was to use a UPS as suggested above, in what way could you activate a shutdown when mains power was lost?
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#4
Hi Phil,

you need an input signal that indicates a coming power loss. In best case it is an physical input signal for the netPI software.

The only chance you have today is to extend netPI with a 4DI4DO module https://www.hilscher.com/products/produc...edge/3002/ in the slot at its bottom and react on its state from your container.

Since a container itself is not able to shutdown the netPI device you can "misuse" the netPI Web-GUI and its RESTful API to login to it from your container and "call" the shutdown command a human normally would call. https://forum.hilscher.com/Thread-Access...-HTTP-REST

Thx
Armin
You never fail until you stop trying.“, Albert Einstein (1879 - 1955)

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