Which of the following best describes axis limit hard stops?

• A. A design detail of the robotic axis end stops
• B. A software configuration
• C. An operational rule for speed
• D. A calibration procedure

Answer: (A)

Hard axis limit stops are physical barriers built into the robot’s axes. They are hardware features that define the maximum travel of each axis to prevent overextension and potential damage. This is different from software settings or procedures, since the stops are actual mechanical components mounted in the robot.

Soft limits, by contrast, are software-defined boundaries you can configure, but hard stops remain fixed hardware limits. They are part of the axis design to ensure safe, repeatable end-of-travel positions.