Anker Charger and Cable not charging this Tablet?

hi i have problem with anker product charging this tablet
i bought the Anker Atom PD1 which is total 30W, Output 5V/3a, 3A/15V
and the cable is the 60W Anker cable which is USB-IF certified
what is the problem that the tablet cannot receive power?

Because the tablet don’t support PD. You need to buy PD trigger or use charger with direct 12V.