Airbus ENG OUT ACC
Just a note of caution: Hazelnut is answering an entirely different question to that posed by the OP. Tat question was about the effect of changing S/E alt in the Mcdu whereas Hazelnut is describing an actual acceleration above 1500ft. You can theoretically insert any altitude you want in the Mcdu without affecting when you choose to accelerate. Hazel it's point is well made though for actual acceleration.
In fact some Aibus performance packages stipulate both a. minimum and maximum acceleration altitude.