Which of the following is NOT a main component of a FANUC Handling Tool system?

In a FANUC Handling Tool system, the primary components include the robot controller, end effector, and robot arm. The robot controller is the brain of the system, managing the operations of the robot and coordinating its movements based on the program it executes. The end effector, which is attached to the robot arm, is critical for interacting with the objects being manipulated, whether it is gripping, lifting, or placing items. The robot arm itself is the mechanical structure that provides the mobility and flexibility needed to perform tasks in a three-dimensional space.

While a power supply is necessary to provide electricity for the operation of these components, it is not considered a main component of the operational functionality of the FANUC Handling Tool system itself. Instead, it is an auxiliary component that supports the system's overall operation but is not directly involved in the functionality of the robot’s tasks. Therefore, identifying the power supply as not being a core operational component is a logical conclusion.