Pro Alert OEE Calculations

Planned Operational = Time frame - Total Planned DT

Run Time (Operational Time) = Planned Operational - Total DT

Target Cycles = Run Time * (Work Center/Product defined rate for cycles/hour)

Actual Units = Actual Cycles * (Work Center/Product defined ratio Units/Cycle)

Availability: Run Time / Planned Operational

Performance: Actual Cycles / Target Cycles

Quality: (Actual Units - (scrap: mfg + other + rework)) / Actual Units

OEE = Performance * Availability * Quality

Mean Time to Failure (MTTF) = Operational Time / Number of DT Events (Minutes)

Mean Time to Recovery (MTTR) = Total DT / Number of DT Events (Minutes)

ProAlert's Relevant Business Rules

Only one Planned DT can exist per work center at one time
Multiple DT events can exist at one time for a work center
- ProAlert will condense multiple WC DTs into one value where calls overlap
Planned DTs will reduce DT times by the amount they overlap, mitigating the negative effects of DTs

Run Time (Operational Time) = Planned Operation - reduced Total DT (where planned overlapped unplanned)