How do servo motors function in FANUC robots?

Servo motors are integral to the operation of FANUC robots as they enable precise control of movement and positioning. This precision is achieved through the feedback systems that servo motors utilize, allowing them to constantly monitor and adjust their operation in real time based on positional data. This capability is essential for tasks that require high accuracy, such as assembly, welding, or packaging, where both the positioning and the speed of movement need to be controlled meticulously.

In FANUC robots, these motors typically work in conjunction with encoders, which provide information on the current position of the motor shaft. This feedback allows the robot's control system to make continuous adjustments, resulting in smooth and accurate movements. This level of control is critical for applications ranging from simple pick-and-place tasks to complex robotic operations involving intricate manipulation.

The other choices do not accurately reflect the primary function of servo motors in FANUC robots. While reducing power consumption can be a benefit of well-designed systems, it is not the primary function of servo motors. Operating in high-speed situations is also not a limitation or defining characteristic of these motors, as they are versatile in varying speeds. Additionally, servo motors do not control the main power supply of the robot; their role is solely focused on controlling motion and positioning.