Feeders are objects that generate loads in your scene. You can add a feeder by right-clicking a conveyor and executing the command from the contextual menu. As a result, the feeder is shown at the beginning of the conveyor as a yellow triangle.
You can activate a feeder in the scene in three different ways:
Double-click a feeder in the scene to generate a single load.
Right-click the yellow triangle on the conveyor showing the feeder and execute the command from the contextual menu. As a result, loads are generated automatically as configured in the of the feeder with the parameter.
Assign a signal to the feeder that is creating a load upon every rising edge of the signal.