How can Nama-rupa of Dependent Arising be same as Five Aggregates? It is generally told that the 4th entry in the chain of Dependent Origination, namely Nama-rupa is nothing but the Five Aggregates (Nama being the sum of Vedana, Sanna, Sankhara and Vinnana). But three of the Aggregates separately appear in the chain of Dependent Origination : Sankhara (2nd entry), Vinnana (3rd entry) and Vedana (7th entry). So there occur three repetitions if Nama-rupa is identical with Five Aggregates. How can this be explained?
Due to past fabrication resulting from past experiences is instruments in creating the current conciousness. As conciousness cannot exist without a body this creates current body with each of the relevant sense faculties associated with the different consciousness.

The faculties in the current body which come in contact with external objects. The conciousness experiences and identifies the external objects based on the sensation of the touch these and our perception reacts with like, dislike and neutral metal action.

These current reaction creates more fabrication which keeps the above cycle going in the future. The reaction is that of our perception classifying sensations into pleasing, unpleasant and neutral sensations of which we want more or less.

The 5 Aggregates is the same as Nama Rupa. Different parts of the aggregates appear in different places in DO to illustrate the above cycle base on which aggregate is in active in the relevant part of the process. DO is not always depicted in the 12 link form; for further details see Dependent Arising by Piya Tan.