Yes Alpha floor should only activate if you are below .53 Mach, AOA protections are active AND Sidestick deflection is more than 14 deg back.
From the A330 FCOM 1
Normal Law Pitch protection:-
HIGH ANGLE OF ATTACK PROTECTION
Under normal law, when angle of attack becomes greater than Alpha prot, the system switches the elevator control from normal mode to a protection mode in which the angle of attack is proportional to the sidestick deflection. That is, in the Alpha prot range, from Alpha to Alpha max, the side stick commands Alpha directly. However the angle of attack will not exceed Alpha max, even if the pilot gently pulls the sidestick all the way back. If the pilot releases the sidestick the angle of attack returns to Alpha prot and stays there.
In addition to that it goes on to say:-
Alpha FLOOR is activated through autothrust system when :
• Alpha is greater than a threshold depending on the aircraft configuration, the ground speed variation, and the difference between ground speed and air speed or,
• Sidestick deflection is above 14 deg and:
— pitch altitude is greater than 25 deg,
or AOA protection is active
Alpha FLOOR inhibition: (Refer to 1.22.30).
Last edited by nitpicker330; 28th Sep 2012 at 01:46.