If Local user not able to Login into Linux SYSTEM..

You have configured maximum logins attemps and account locking

pam_tally[31428]: user dpser12 (1241) tally 21,


Try with:

pam_tally --user dpser12 --reset=0

The sintax is:

pam_tally [--file rooted-filename] [--user username] [--reset[=n]]