You can do this by going to the "autBlocoF100" automation and adding an entry point (The Execute block, as you have in your image). You will need to start your automation flow from this block.
Then, click the "+" button on the Execute block to add parameters. You can use these parameters to set the values of variables inside your "autBlocoF100" automation.
Lastly, replace the "auBlocoF100.Start" method for the "auBlocoF100.Execute" method in the automation above. You should see that this block now contains the same number of parameters as you have added in the "Execute" block inside the "auBlocoF100" automation. These parameters can either be hard-coded or the values can be passed through normal automation means.
You do not need to call Start on an automation as they are already started whenever the project is started. Start does not execute them, it only instantiates them. To get an automation to perform the steps you've coded for, you need to add an entry point and then invoke that entry point by adding the Execute method to another automation where you are calling it from.