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9.4.1 Standard Conditions
When progressing along a straight edge where the convex sensor (911) is detecting the panel and
the bump bar (915) and bump switch (914) are not activated, fast speed is maintained as are the
standard pressures against the edge.
9.4.2 Convex Corner
The convex sensor (911) is a photo-eye which senses the panel at all times except when
a convex corner of sufficient radius is reached. At this point the sensor ceases to detect
the panel until the convex corner is completed.
At the time the convex corner sensor ceases to detect the following sequence occurs.
1.
After a time delay (refer 9.3.4 Slow Delay Convex – Advanced Controls: Feed), the
feed motor slows to convex corner speed.
2.
As the rollers progress around the corner, the pivot (917) and trailing roller (918)
effectively swing forward. Provided the corner is tight enough, the pivot forward
sensor (913) will activate at the apex of the corner. This initiates the application of
Convex Corner Bias. The extra bias applied at this point assists the rollers around
the corner.
3.
As the rollers progress further around the corner, the convex corner sensor (911)
will reach back over the panel sensing the end of the convex corner or alternatively
the Pivot Forward sensor (913) will cease to make and the bias will be turned off.
4.
On completion of the corner after a delay, the feed will return to fast speed.
917
918
Summary of Contents for Revolution 180
Page 1: ...Operating Manual...