logo elektroda
logo elektroda
X
logo elektroda
Advanced Search
logo elektroda

[Solved] Interference in Moes Smart Switches ZS-EUB using a fan

NicoDB 1143 6
ADVERTISEMENT
Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
| New topic
  • #1 21067971
    NicoDB
    Level 10  
    Hi,

    I have three Moes Smart Switch ZS-EUB (ZigBee 3.0) light switches, I use without N wire, they all work on the same phase.

    1 - LED bulbs 220V approx. 21W,
    2a - power supply for LED 220V-12V and starting the fan (only triggering, not constant power),
    2b - power supply for LED 220-12V,
    3 - LED bulbs 220V approx. 15W.

    As long as we do not use 2a everything works fine, the lights switch off and on. When 2a is switched on:
    - lights 3 turn on and cannot be switched off with switch 3 until 2a is switched off,
    - lights 1 blink, 1 flashes every approx 10s.

    I have removed switch 3 and now after switching on 2a, 1 turns on (not every time) once for approx 5s and goes out.
    I suspect that the problem is the fan, but I cannot explain why. I have a request for the reason for this and any suggestions on how to solve this, obviously the fan is needed.

    Greetings
    Darek
  • ADVERTISEMENT
  • #2 21067974
    Erbit
    Level 38  
    The fan must be introducing interference - either along the power line or in the radio path. Possibly causing voltage drops in the power supply. If you drew a diagram it might be easier. Also specify what the fan is (wattage / what voltage, maybe make / model).
  • ADVERTISEMENT
  • #3 21068029
    NicoDB
    Level 10  

    Diagram below. S&P bathroom fan with timer
    Electrical diagram with bathroom fan and S&P timer.
  • ADVERTISEMENT
  • #4 21068163
    Erbit
    Level 38  
    In parallel to LED 1 and LED 3 insert a capacitor and as large capacity as possible - of course at 250-400V AC voltage.

    Already such 100 nF / 270V should be enough -> https://allegro.pl/listing?string=kondensator%20LED but if you find 2-4 uF it will be better.

    This is a penny thing and I hope it will solve your problems.

    [edit]
    I have edited the post. Obviously capacitors in parallel to LED1 and LED3 and not LED2 as I mistakenly wrote.
  • ADVERTISEMENT
  • #5 21079671
    NicoDB
    Level 10  
    To start with a correction, the problems described are caused by switch 2b, not 2a, that is the one to which the fan trigger is not connected (I didn't check carefully before). I bought 3.3 uF capacitors and connected one in parallel to led 1 and what has changed is that the light no longer flashes but comes on permanently when I switch on 2b. I stated that I would install a regular switch 2 for the time being (just leave 1 on Moes) and here I was surprised as the effects are exactly the same. At this point I've stopped, next time I'll try disconnecting the fan completely, but maybe someone has some ideas.
  • #6 21079824
    Erbit
    Level 38  


    Another possibility is some kind of synchronisation of the switches, which causes e.g. switching on 2b to also switch on 1, but I am betting on the previous sentence, i.e. a differently connected installation than the one drawn.
  • #7 21321104
    NicoDB
    Level 10  
    Informative. After testing and disconnecting everything, it turned out that the cause was the disturbance caused by the LED power supplies. With the Moes switches I did not solve the problem, but after changing to Aqara switches everything works fine.
| New topic
Report a violation of the law

Topic summary

Three Moes Smart Switches ZS-EUB (ZigBee 3.0) are installed without neutral wire on the same phase controlling LED lighting and a fan power supply. When the fan trigger (initially thought to be 2a) is activated, interference occurs: LED lights controlled by switch 3 cannot be turned off, and LED lights on switch 1 blink intermittently. The fan is identified as an S&P bathroom fan with timer. Suggested troubleshooting includes adding capacitors (100 nF to 3.3 µF, 250-400V AC) in parallel to LED loads to mitigate interference. After correction, the issue is linked to switch 2b, not 2a. Installing a 3.3 µF capacitor on LED 1 eliminated blinking but caused the light to remain permanently on when switch 2b is activated. Further hypothesis includes possible synchronization effects between switches or wiring discrepancies. Complete fan disconnection is proposed for further diagnosis.
Summary generated by the language model.
Popular Topics
ADVERTISEMENT