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Shelly uni plus


Gerardo

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Shelly digital inputs (SWx or IN-x) are not voltage but current triggered: A small current of approximately 34μA flowing from SW-/IN-pin to GND/L activates the input. Thus, any specified voltage may be used to supply the Shelly plus UNI with energy.

BTW: There is no -5V pin with UNI plus! Pins 6 („5V“) and 7 (GND) are directly connected with the smoothing capacitors. Hence, pins 6 and 7 may be used to apply DC from 5V to 32V. But be aware of the polarity! There is no diode to prevent mistakes!

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2 hours ago, thgoebel said:

Shelly digital inputs (SWx or IN-x) are not voltage but current triggered: A small current of approximately 34μA flowing from SW-/IN-pin to GND/L activates the input. Thus, any specified voltage may be used to supply the Shelly plus UNI with energy.

BTW: There is no -5V pin with UNI plus! Pins 6 („5V“) and 7 (GND) are directly connected with the smoothing capacitors. Hence, pins 6 and 7 may be used to apply DC from 5V to 32V. But be aware of the polarity! There is no diode to prevent mistakes!

I do not have it very clear. According to Shelly uni plus schematic pins 6, and 7 seem to be used only for powering uni with 5V. It shows pins 1&2 for another options, that is very confusing. 

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