What must be done after setting software axis limits on the controller?

After setting software axis limits on the controller, it is essential to save the settings to ensure they are retained for future use. This step is crucial because without saving, any changes made to the axis limits will be lost once the controller is powered off or restarted.

When you set software limits, you are defining the range of motion for the machine's axes, which is vital for the safe operation of the equipment. If these settings are not saved, the machine will revert to previous configurations or default settings upon power cycle or program restart, potentially leading to operational errors or equipment damage.

The other options do not address the requirement of retaining the new settings. Restarting the program or cycling the power would not be effective if the changes were not saved. Likewise, while calibrating the axes is a necessary step in ensuring accurate movement, it must be done after the settings have been properly saved to ensure alignment with the new limits.