This is a PPWIZARD command line switch.
This option can be used to pause execution for a period of time after PPWIZARD completes processing normally (OK) or abnormally (ERROR). Used with the "/DependsOn" switch in a simple batch file could be used in place of a CRON step to poll for data file changes.
By default there is a small delay on error to allow you to see the error in case the ppwizard command is in a larger batch file etc. This delay is removed if /OnError is used (unless the "/sleep" switch has previously been used).