What does the override key limiting rapid traverse to 5% do?

What does the override key limiting rapid traverse to 5% do?

• A. Sets the spindle to maximum speed
• B. Increases rapid traverse to 100%
• C. Limits movement speed to half of maximum
• D. Restricts rapid traverse to 5% of its maximum

Answer: (D)

The override key limiting rapid traverse to 5% effectively restricts the speed at which the CNC machine can move quickly. Rapid traverse refers to the fast movement of the machine tool across the workpiece, usually used for repositioning rather than cutting. By setting this limit to 5%, the operator can ensure that movements are performed slowly, allowing for more precision and control, particularly in sensitive operations where accuracy is critical. This can be particularly useful in situations such as setup, tool changes, or when working with delicate materials where fast movements could lead to errors or damage. The other options do not represent the function of the override key in this context: the spindle speed is not affected by limiting the rapid traverse, and the other options suggest increasing speed rather than restricting it. Thus, the choice accurately reflects the safety and precision aspect that the override function provides.

The override key limiting rapid traverse to 5% effectively restricts the speed at which the CNC machine can move quickly. Rapid traverse refers to the fast movement of the machine tool across the workpiece, usually used for repositioning rather than cutting. By setting this limit to 5%, the operator can ensure that movements are performed slowly, allowing for more precision and control, particularly in sensitive operations where accuracy is critical. This can be particularly useful in situations such as setup, tool changes, or when working with delicate materials where fast movements could lead to errors or damage.

The other options do not represent the function of the override key in this context: the spindle speed is not affected by limiting the rapid traverse, and the other options suggest increasing speed rather than restricting it. Thus, the choice accurately reflects the safety and precision aspect that the override function provides.