Which safety feature should be readily accessible to stop robot motion in an emergency?

• A. Safety interlocks.
• B. Teach Pendant screen saver.
• C. E-stop.
• D. Remote log.

Answer: (C)

In an emergency you want an immediate, undeniable way to halt all robot motion. The emergency stop button is designed for that exact purpose: it stops all movement as soon as it’s pressed by cutting power to the drives and overriding the current program. It’s meant to be quickly reachable, clearly labeled, and usually located on the robot or its control station for fast access when danger arises. Safety interlocks protect against unintended entry by requiring a door or gate to be closed, but they don’t guarantee an instant stop in every scenario since they rely on a physical condition. The teach pendant screen saver or remote log don’t affect motion, so they aren’t suitable for stopping the robot in an emergency.