Downtime Event
A downtime event occurs either when equipment is not running (downtime) or when equipment is not running at its target rate (rate loss). When tracking downtime, the key measure is downtime minutes. When tracking rate loss, both downtime minutes and the lost opportunity from target production rate are the key measures. A downtime event represents the time a particular unit (or line) was in a faulted condition.
What Can Be Automated In Downtime?
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Downtime Start And End Times
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Production Rate Capture For Rate Loss
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Cause Location For Downtime
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Downtime Fault
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Reasons Based On Fault
Examples of Automatic Events In Downtime
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Line Speed Supplies Downtime Start and End
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Conveyor Faults Determine Cause Location
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Cause Location Determines Overall Fault
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Overall Fault Determines Default Reasons
Relationships
Unit: The major piece of equipment around which downtime is being tracked.
Fault: What the control system thought the reason for downtime was. Can be a "first out," or simply the active interlock that prevents equipment from running.
Detail: An individual downtime event whose duration represents the time of a given fault condition. An overall downtime occurrence may have several faults; therefore, several details.
Summary: An overall downtime event which contains one or more downtime details found. A summary represents the total time of downtime, whereas the detail represents the time in a given fault condition.
Location: The specific piece of equipment (equipment module) along a production line causing the line to go down.
Cause Reasons: The reasons thought to be the cause of a downtime event.
Action Reason: Reasons identifying any corrective action taken.