In a robot system, which component interfaces with the controller but is not a main actuator?

In a robot system, which component interfaces with the controller but is not a main actuator?

• A. Peripheral devices
• B. End effector
• C. Work envelope
• D. Hopper

Answer: (A)

Think of the controller as the brain and the main motion parts as the muscles. Peripheral devices are the bridge between the brain and the rest of the system: they provide signals, feedback, and I/O connections that let the controller monitor and coordinate everything, but they don’t drive the robot’s movement themselves. That makes peripheral devices the component that interfaces with the controller while not being a main actuator. The end effector is the tool at the end of the arm that performs the task and is typically a primary actuator or drive element. The work envelope describes the robot’s reachable space, not a device. A hopper is simply storage for parts. So peripheral devices best fit the description.

Think of the controller as the brain and the main motion parts as the muscles. Peripheral devices are the bridge between the brain and the rest of the system: they provide signals, feedback, and I/O connections that let the controller monitor and coordinate everything, but they don’t drive the robot’s movement themselves. That makes peripheral devices the component that interfaces with the controller while not being a main actuator.

The end effector is the tool at the end of the arm that performs the task and is typically a primary actuator or drive element. The work envelope describes the robot’s reachable space, not a device. A hopper is simply storage for parts. So peripheral devices best fit the description.