Why do my lights delay switching on when I reduce the brightness in a scene?

[MGGNZ 0]

Hi there,

 

I have a fibaro system that was with the house when I bought it. I think the lights are controlled by Dimmer 2's, with Fibaro Motion sensors and an HC2.

 

There are scenes set up to turn on different lights based on the motion sensors.

 

However when I reduce the "set value" in the scene to lower the brightness, the lights delay turning on as well. The lower the "set value" level the longer the delay.  Could the value be controlling both?

 

This is my scene:

 

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Any ideas?

 

Thanks.

[Smarthomeworks 0]

An effective way to use smart lights is to group them together by room or zone. For instance, you can schedule all of the lights in your basement go dark after midnight. Or, after 1 a.m. make every light on the main level to dim to 20 percent brightness. You get the idea. 

 

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[MGGNZ 0]

2 hours ago, Smarthomeworks said:

An effective way to use smart lights is to group them together by room or zone. For instance, you can schedule all of the lights in your basement go dark after midnight. Or, after 1 a.m. make every light on the main level to dim to 20 percent brightness. You get the idea. 

 

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Thanks for that.  For my specific use case I have four areas:

• downstairs hall
• upstairs hall
• stairs
• ensuite

each of which has its own motion sensor and dimmer.

 

I would like to set a day  scene for each sensor so the related lights come on 100% brightness when triggered by motion and a night scene so the lights come on at 20% brightness.

 

I am just having the issue where lowering the brightness introduces a delay.

 

Can you show an example scene that effectively turns a light on and sets it to a low brightness based on motion from a sensor?

 

Regards.

[emielstroeve 22]

try this one as an example, and there a more on this forum.

 

 

[MGGNZ 0]

On 6/17/2020 at 5:11 PM, emielstroeve said:

try this one as an example, and there a more on this forum.

 

 

 

Thanks

[MrNoTip 2]

Did you fix this problem?

 

I have a similar issue, but its got nothing to do with scenes or scene slowness. Wondering if that was the obvious but not the actual cause for you...

 

In my case the light is on a gang of three in a bathroom. The other two work fine but the the problem strip light takes aaages to turn on (switch or software). I was troubleshooting on the weekend and tried pretty much every parameter after re-associating didn't help.

 

What I found was that the light is totally responsive at higher brigthness, but if I set its forced on brightness lower, the delay comes back. When I look at the dimmer itself in software, it is turning on responsively, but the light itself isn't reacting.

 

I am guessing the driver used in this location (near impossible to get to behind tiles and mirror) might be different to what we used elsewhere and is somehow struggling (I read lots about slow starts in general for dimmable LEDs outside of an automation context). Tried different dimming protocols and pretty much everything else in the parameters, but increased (too much) brightness seems to be the only fix.

 

Does this sound similar to your issue or did the grouping fix it for you? Does anyone else have any experience with this?

[MGGNZ 0]

On 1/27/2021 at 3:12 PM, MrNoTip said:

What I found was that the light is totally responsive at higher brigthness, but if I set its forced on brightness lower, the delay comes back. When I look at the dimmer itself in software, it is turning on responsively, but the light itself isn't reacting.

 

I am guessing the driver used in this location (near impossible to get to behind tiles and mirror) might be different to what we used elsewhere and is somehow struggling (I read lots about slow starts in general for dimmable LEDs outside of an automation context). Tried different dimming protocols and pretty much everything else in the parameters, but increased (too much) brightness seems to be the only fix.

 

Does this sound similar to your issue or did the grouping fix it for you? Does anyone else have any experience with this?

 

This sounds exactly the same as the issue I am having.  As long as the brightness is set to full there is no delay.  The lower the brightness the longer the delay.  It happens on all my dimmers. Also they are all controlling multiple bulbs, and when there is a delay it will result in the bulbs turning on one after the other, rather than all at once.

 

I have not worked out how to fix this problem. Hoping someone smart on here might have seen this and know the cause.  Is is the bulbs, the dimmers, the switches (Clipsal Saturn Zen)? I wouldn't have a clue.

 

Cheers.