Hello Claudio,

Harmonic Response supports loads at different nodes having different phases as Samuele saw in the load Details window where there is a field for Phase.

You clarified for Samuele that Harmonic Response is a sweep over a range of frequencies.

I will add that all loads have the same freqency during the sweep, while the amplitude and phase of each load can be set independently. But see the note in the image below.

Here is an example from the Ansys Help Structural Analysis Guide