Roller Shutter control by light sensor

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Hello,

 

I am using Home Center Light. I have a Fibaro Motion Sensor and I try to run my roller shutter scene by light control, but I dont get it to work the way I need it.

 

Today the shutters closed when the light sensor changed from 96 to 82 lux, but I want it to close at 10 lux.

 

This is the scene I am using:

 

 

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Since it is in German:

• Roll_Zu_Status is the Variable for shutter closing clearance
• freigegeben means enabled
• Roll_Offen_Status is the Varable for shutter opening clearance
• gesperrt means disabled

I hope this explains it good enough.

 

One condition I want to realize is, that the shutters only close once in the evening and open once in the morning. For this i am using Variables "shutter opening clearance" and "shutter closing clearance".

 

For setting the variable I use another scene. This is for "shutter closing clearance":

 

 

It enables 30 minutes before sunset.

 

And this is exactly when the shutters closed today.

 

I can't find my error. Does anyone has an idea?