RobotStudio event

Problem with detacher smart component

Hi! i'm working with Robotstudio v5.14 and I want to do a pick and place station. I can't make detacher component working fine. I set all right (bindings, I\O connections and signals, signal in rapid editor and all I've seen in several online tutorial), I am able to attach a box to the tool but I'm not able to make it detaching from tool itslelf. It seems like when I put the signal to 0 in RAPID editor the program can't execute the detacher instruction. 
Someone can help me to solve my problem?

Thanks in advantage for your availability.

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