An open-loop control system is a type of control process where the output does not affect the control action. It operates based on pre-set instructions or input settings and does not use feedback to make adjustments. Once the system is activated, it follows its commands and continues to function even if the actual output deviates from the desired outcome.
Because there is no feedback, it cannot automatically detect or correct errors caused by changes in the environment or process conditions. Open-loop systems are simple, fast, and cost-effective, but less precise and adaptable than closed-loop systems.