SAP Fiori Launchpad - Auto Logoff after inactivity

Hi Friends.

We have custom UI5 applications running on Fiori Launchpad. We want the launchpad to logoff after some duration of inactivity . For this we set the parameters http/security_session_timeout and rdisp/plugin_auto_logout to 2 min ( for testing) but the session doesn't seem to get terminated at all. Pls note that we don't have any SSO solution in place and the Gateway is on the same box as ECC.

Would appreciate any suggestions.

Thanks

Santosh