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Dimmer not working with dimmable transformer


iSmart Home

Question

I just installed the Dimmer 2 before the transformer.

 

For some reason when I try to switch on it auto turns off.

 

What could be?

 

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Edited by iSmart Home
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FIBARO Dimmer 2 uses different operating modes to control following types of loads:

  • „Trailing edge” for resistive loads (R)
  • „Trailing edge” for resistive-capacitive loads (RC)
  • „Leading edge” for resistive-inductive loads (RL)

Some types of the LED bulbs and compact fluorescent lamps are designed to work in leading edge operating mode.

As a dimmer it operates under the following loads:

  • 230V operated conventional incandescent and halogen light sources
  • 12V operated ELV halogen lamps and dimmable LED bulbs (with electronic transformers)
  • 12V operated MLV halogen lamps (with ferromagnetic transformers)
  • dimmable LED bulbs
  • dimmable compact fluorescent CFL tube lamps
  • supported dimmable light sources (power factor > 0.5) with minimal power of 5VA using FIBARO Bypass 2 (depending on the type of load)

FIBARO Dimmer 2 supports only compact fluorescent tube lamps and fluorescent tube lamps with electronic ballast. Do not connect other types of fluorescent lamps!

Without dimming function it may work with:

  • compact fluorescent CFL tube lamps with electronic ballast
  • fluorescent tube lamps with electronic ballast
  • LED bulbs (power factor > 0.7)
  • supported light sources (power factor > 0.5) with minimal power of 5VA using FIBARO Bypass 2 (depending on the type of load)

Recommended values of power for supported loads:

Supported load types 220-240V~
Resistive loads
Conventional incandescent and halogen light sources
50-250W
Resistive-capacitive loads
Fluorescent tube lamp (compact / with electronic ballast), electronic transformer, LED
50-200VA
Resistive-inductive loads
Ferromagnetic transformers
50-220VA

 

 

 

 

 

 

According to the Fibaro specification, the output load is in the range of 220-240VAC.
Your power supply is lower, at least according to what I see on the 127V transformer.
This will probably be the problem.
If not, there are several other conditions for dimming operation, see the manual.

Edited by Martin_N
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And otherwise you write how the power of the light is connected. You don't write how you have the dimmer set, what mode... what setting the rising or falling edges are...
Try to write more, attach a picture of the wiring...

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