Final answer:
A self-contained control system integrates the controller and the controlled devices into a single unit, while conventional control systems have these components separated. The source of energy used to adjust the controlled device in a self-contained control system can be electrical or mechanical, depending on the specific application.
Step-by-step explanation:
A self-contained control system is one in which the controller and the controlled devices are integrated into a single unit. This means that the control circuitry and the devices it controls are physically connected and housed in the same enclosure. In contrast, conventional control systems have the controllers and the controlled devices separated.
The energy used to adjust the controlled device in a self-contained control system can vary depending on the specific application. It could be electrical energy, such as a voltage or current, or it could be mechanical energy, such as air pressure or hydraulic fluid pressure. For example, in a self-contained HVAC control system, electrical energy is used to activate motors that adjust the position of dampers in the air distribution system.