RMAN backup status and starting DB from RMAN

Hi  GURUS,

we scheduled offline backup for all UAT instances which has almost 50 to 60 instances, where all are noArchivelog mode, so we are using cold backup which is shutdown the DB and then mount the DB from there we take the backup, but due to various reasons some of the DB fails the backup then RMAN scripts quits from that point it is not bringing up the DB, as per the RMAN script once the backup is completed then the script for BRINGING UP DB will be executed, but if fails it doesn't execute the scripts,

So, is there any RMAN intelligences way where if the backup fils, then it should catch execption like where our DB still should Bring up the instances,