Adaptive Mode
(Stroke-to-Stroke "Rolling Average")
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•
•
•
•
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Compares present Sensor-to-target displacement
to Mean Value of Displacement for previous two
strokes.
Monitoring limits established for plus / minus
deviation.
Bypass function at start of operation has
progressively closer alarm limits during machine
stabilization.
Slow changes over time canceled.
Fault detection range set very small (±5 microns
typ.) without nuisance alarms.
Sudden changes (dropped parts, short feeds,
chipped or broken punches) easily detected.
The deviation displayed is calculated by the equation:
Deviation = Detected Value – Average of 10 Previous Values
Ex) Detected value: 1,823mm
Average of 10 previous values: 1,820mm
1,823 – 1,820 = 0.003
Display value: 3
The monitoring range depends on the set point. When the set point is 10, the monitoring
range is
±
10 (m relative to the mean value of 10 previous data. Mean value detection is
characterized in that slow changes are cancelled and only sudden changes such as punch
abnormality, shorter size, etc., can be detected.
In addition, the detection range can be made smaller so this detection mode is suitable for
minute fault detection.
Page 12
TMG-1200 Instruction Manual
