Beiträge von Victor!

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    Hello,

    I configured successfully one BLU Motion and installed it next to the staircase to detect when someone wants to walk up the stairs. Setup worked fine and I can visualize the notifications in the app.

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    My problem is that BLU motion does not detect many times the person in front of it.

    Only very quick moves coming into its view region trigger the motion notification (long red flash). Generally speaking, BLU motion detects something in front of it whenever someone walks by, but it only flashes shortly. The long flash (motion detection) is rarely triggered. The detector is located approximately 1,8m high and 1m away from the person, so distance should not be a matter.

    I have tried changing the sensitivity of the motion detection to high, but then it started reporting motion even when there was nobody there. Even worse, the light amount reported was enormously high (tens of thousands instead of hundreds). I upgraded the firmware as well without any improvement. I tried with the debug mode (pressing twice the button) but I could not figure out anything. When doing all these tests, I took into account that it would not send any signal during the blind time (30 seconds).


    Am I doing something wrong, or is there anything else I could try?

    Thank you in advance

    Thank you for your answers tvbshelly and thgoebel! I finally understood how it works 😀

    Then, going back to my original question (correcting the live wire in A, B and C). Is it correct now?

    • CTC will measure the total power of the household
    • CTB will measure the power consumed by the fridge
    • CTA will measure the total power consumed by the cooking plate

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    I think your choice of words does not match the drawing. I can only see 1 phase there, so to be on the safe side:

    Is your installation single-phase or 3-phase?

    It is true, sorry for my erroneous wording, I mixed 3-"phase" (120º power signals) with "phase"/neutral wiring. I have a single-phase supply at home, but I would like to measure currents at different points of the same live wire.


    Zitat

    No. Your sketch depicts a one-phase system with three points of measurement. Thus, each voltage terminal of Shelly pro 3EM has to be supplied with the (one) live voltage. Otherwise, channels A and B don’t give power and voltage figures.

    If I supply A, B and C with the same live wire voltage, would it work like this?

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    Sorry for being so lost, but I found almost no documentation or examples with installation guides and examples.

    Thank you thgoebel for the quick response!

    What you suggest is that I leave out the other two measurable phases of A and B, and only measure one phase and current with C. Did I understand it correctly?

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    Is it then not possible somehow to use phases A and B connected to the same live wire of C? I cannot think of any practical connection for this.

    Thank you

    Hello,

    I would like to install the Pro 3EM device as I depict in this schematic. Could you please tell me if it is correct and safe?

    • Connect CTC/CTN at the beginning of the phase/neutral wiring distribution of the whole house, to measure the total consumed power in the household
    • Pass the three phase wires of the cooking plate through CTA to measure the total power consumed in the cooking plate
    • Pass CTB through the phase wire of the fridge
    • Integrate the generated power from the solar panels of collected by Shelly 1 PM into the ShellyApp to know the balance of generated and consumed power

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    Many thanks in advance