Thank you Mr Steve Puluka for your valuable comments, on passive firewall, we always use netscreen password, as its is not communicating with LDAP, and it should work for local, may be i have done some miss configuration, below are the exact changes i have made only.
set admin name jams
after this command i received this error
Password has been restored to default "netscreen". For security reasons, please change password immediately.
then i set the password
set user jams password "abc-xyz"
now when i try to login with username jams and password, it pass error
Password:
Password authentication failed.
Please verify that the username and password are correct