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 Manage Downtimes

 

Downtimes are considered in the availability and OEE KPI calculations and indicate how the downtimes are affecting the progress of the shift.

The SAP OEE application supports both automatically and manually reported downtimes.

From the OEE dashboard you can:

  • Report downtimes of type:

    • Scheduled

    • Unscheduled

    • Flow time

  • View and edit open downtimes. Report end of downtime.

  • View untagged downtimes and assign reason codes to them

  • Delete a downtime

  • Split a downtime and assign different reason codes

Activities

  1. Choose Manage Downtime button from the footer of the OEE dashboard. The Manage Downtime screen appears.

  2. You can see all the downtimes that were reported for the order-operation during the selected shift.

    You can filter to view downtimes that are still open or untagged. For line downs, you can see the bottleneck machine causing the down.

    You can edit a downtime: change the start and end time, duration, type of downtime. You can also assign reason code and the machine affecting the downtime.

  3. To report a new downtime, choose Report New from the footer of the Manage Downtime screen.

    By default, system creates an unscheduled downtime.

  4. Select the work unit on which you want to report downtime. The Select Work Unit dialog box appears. Bottleneck machines are highlighted.

    Assign the reason for the downtime.

  5. To report a scheduled downtime, choose Skip Assignment on the Select Reason Code dialog box.

    Change the downtime type to scheduled down. Assign the reason for the downtime.

  6. Enter the start time.

    System considers a downtime as an open downtime until the end of the downtime is not entered. Open downtimes can also be edited from the dashboard.

    Note Note

    Open downtime durations are considered in OEE KPI calculations. The downtime duration considered is calculated as Current Time – Downtime Start Time.

    End of the note.

  7. OEE handles downtimes as follows:

    Type of Downtime

    Definition

    System Response

    Minor Stoppage

    Downtime duration less than or equal to the duration customized as minor stoppage.

    For more information, see Configuring Customized Values.

    Downtime not considered in OEE or availability KPI calculations.

    Machine breakdown

    Downtime duration is longer than the minor stoppage duration.

    Downtime is considered in OEE and availability KPI calculations if:

    • machine breakdown is causing the line to be down

      To do this, choose the Mark Line Down option when reporting machine breakdown.

    • machine is a bottle neck machine

    Line down

    Depends on the line behavior defined in Customizing.

    However, if you explicitly mark the line down for a machine down, system considers the line to be down irrespective of the line behavior defined in Customizing.

    For more information, see Configuring Customized Values

    Downtime is considered in OEE and availability KPI calculations.

    Shared downtime

    Downtime on more than one machine at the same time.

    You can allocate the entire downtime to one order-operation or split the downtime and allocate it to two different order-operations.

    To assign a shared downtime to an order-operation, choose the Details button. Select the downtime and choose Assign to Order from the footer. Choose the order-operation to which you want to assign the downtime.