Photoeye in conveyor

In my model i used photoeye option in conveyor to stop flow item for specified time, but the flowitem is not resuming to flow in conveyor after the debounce time is completed.
what is needed is flowitem has to stop on photoeye for a specified time and resume its operation.
I have attached my model.

Hi Manoj,

Two changes need to be done to your model to get it to work as described.

1) Make your conveyor non-acumulating (just untick the option)

2) In order to re-start operations send a delayed message to get the conveyor to restart.

Here's what I worked on.

Good Luck