The global XYZ axis is not resetting to XYZ = 0 deg.

I just started learning how to use ACS, but when I reset the ACS back to global origin the XYZ are still showing an angle offset, like X=230 deg. when it should be 0 deg.   How do I get back to the default XYZ's = 0 deg.?  The coordinate symbol is showing in the proper direction, that is XYZ directions indicate it's back to normal.   Is the ACS still active, if so, how do I reset and delete the 'unnamed ACS' to get back to default Coordinates?