What role do encoders play in FANUC robots?

Encoders are critical components in FANUC robots, as they provide essential feedback regarding the robot's position, speed, and orientation. By continuously measuring the rotation of the robot's joints or axes, encoders enable the robot's control system to accurately determine its current location and movement. This information is vital for ensuring precise control over the robot's actions, allowing for smooth and coordinated movement as it performs tasks.

Understanding speed and orientation is particularly important in applications such as robotic arm manipulation, where precise positioning is necessary for tasks like assembly, welding, or painting. The data from the encoders allows the robot to adjust its movements in real time, compensating for any deviations and ensuring that it operates within its required parameters.

The other options refer to functions that are not associated with encoders in FANUC robots. Electrical power is supplied by the robot's power system, while wireless communication and user interfaces involve different technologies that do not rely on encoders. Thus, the role of encoders is specifically tied to movement tracking and control in robotic applications.