Sustained improvement in energy level displayed by increase in speed or ROC is an indication that you are out of W/S. In AB AOA protection takes care of lower end of the speed scale you need to take care of higher end if you get ALT* by moving the thrust levers to climb. If not in ALT* then in SRS the FMGS will take care of even higher end by increasing ROC.
Last edited by vilas; 4th Jan 2016 at 10:27.