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Re: Working with UPS

Posted: 02 Feb 2021, 11:09
by dirk
Hello Mirko, thank you for your feedback and your sophisticated but necessary solution.

Re: Working with UPS

Posted: 03 Feb 2021, 19:06
by mirko.comparetti
No problem.
But maybe this might be an hint for the new RevPi4: internal management of the UPS power with a logic similar to ours, so that if there is a rising edge on the Vcc it will switch on the revpi automatically.

Thanks,
Mirko

Re: Working with UPS

Posted: 04 Apr 2024, 11:13
by FabeFromBOD
Hi dear support team,

We are currently using a RevPI connect S for internal development.

We can add a UPS in the event of a power outage. I think I have understood the overall operation but when we apply voltage to the digital input of the X2 connector, the state remains at 0 ?

Code: Select all

if [ `piTest -q -g 6,6` == "0" ]; then echo "low"; else "hi"; fi;
result : low

VCC_PS is connected to X4 connector (12v)
VCC_UPS (simulated by an another PS) is connected to the DI on X2 connector (24v)

I do not understand what's happen :|