Which item is NOT considered a core component of the FANUC robot system?

• A. Air compressor
• B. Mechanical Unit
• C. Software
• D. Controller

Answer: (A)

The essential components of a FANUC robot system are the mechanical unit (the robot arm and joints), the controller (the brains that drive motion and safety functions), and the software (the programming and configuration environment that enables operation). An air compressor, while useful for powering pneumatic tooling or grippers, is external support equipment and not built into the robot’s core architecture. It supplies air to actuators but isn’t itself part of the robot’s control or mechanical system. So the air compressor is not considered a core component of the FANUC robot system.