What does a 'servo motor' do in a FANUC robot?

A servo motor in a FANUC robot is primarily responsible for providing precise control of the robot's movements. This precision is crucial for various applications, such as assembly, welding, and painting, where exact positioning and movement are required. Servo motors achieve this control through feedback mechanisms that constantly adjust the motor's position and speed based on the desired movements dictated by the robot's programming.

In essence, the servo motor works by converting electrical signals into precise mechanical motion. It allows the robot to execute complex tasks with high accuracy, which is fundamental for ensuring the quality and consistency of the work being performed. This responsiveness and adaptability make servo motors essential components in the operation of FANUC robots, enhancing their effectiveness in industrial automation.