average cycle

Average of some set of actual machine cycle times. Average cycle is computed several ways. The current incomplete cycle is never included.

Job-to-date Average Cycle (includes current, incomplete shift):

Average Cycle = (UP TIME for the job) / (UP CYCLES for the job)

Shift-to-date Average Cycle

Average Cycle = (UP TIME for the shift) / (UP CYCLES for the shift)

Moving Average Cycle:

If cycle window = 0, then
Average Cycle = AVERAGE CYCLE
Else
Average Cycle = (CYCLE TM1 +...+ CYCLE TMn) / N
where N = cycle window

The moving average cycle is compared to the standard cycle to determine machine state. A machine is slow if the Average Cycle is:

Average Cycle > (Standard Cycle) + ((Cycle Tolerance) * (Standard Cycle) / 100)

A machine is fast if the Average Cycle is:

Average Cycle < (Standard Cycle) - ((Cycle Tol) * (Standard Cycle) / 100)