A court statement said investigative magistrate Luis Alaez released Francisco Jose Garzon Amo without bail.
The statement said Garzon must appear in court once a week and is forbidden to leave Spain without permission.
It said the train driver’s licence had also been withdrawn. Earlier, Garzon was questioned for almost two hours at the court in Santiago de Compostela, the northwestern town near where the accident occurred.
The 52-year-old claimed in the immediate aftermath of the accident that he “could not brake,” the court heard.
Photos: Katrina Kaif, Shamita Shetty at Mumbai airport
Photos: Varun Dhawan, Alia Bhatt promote 'Badri...' on 'Dil Hai Hindustani'
In pictures: 15 facts about kissing that will surprise you
Photos: Shahid Kapoor and Mira Rajput at cafe in Bandra
Photos: Deepika Padukone, Neha Dhupia and Soha Ali Khan at event