If you are a new student and do not have your ID card yet you can use the libraries but will not be able to borrow. Check here for information on collecting your ID card. https://www.arts.ac.uk/study-at-ual/how-to-enrol/student-id-card-collection
If you have forgotten your ID card reception will print you a temporary ID which can be used to borrow items. Please go to the information desk to borrow if the self service machines are unable to read your temporary ID.