CONTREX M-Traverse - Manual (Page 96)

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Example of an Edge Based Profile with Reverse Rebound.
Home Seek moves the Follower mechanism in the reverse direction. Home Seek
reaches the Reverse Limit without detecting the Home Sync sensor and immediately
stops. Home Seek moves the Follower mechanism in the forward direction (toward the
Forward Limit). When Home Seek locates the Home Sync sensor, it ramps down at
the Accel/Decel rate (CP-60) to zero. This causes the Follower mechanism to
overshoot the Home Sync sensor. The M–Traverse compensates by reactivating Home
Seek in the reverse direction, then a forward, triangulated Accel/Decel move that aligns
the Follower mechanism with the Home Sync senor. This profile is used in both web
scan and level wind applications.
Note : If Home Seek does not detect the Home Sync sensor by the time it reaches
the Forward Limit, the M–Traverse automatically shuts the system off (F-Stop).
Jog Speed
(CP-61)
Accel/Decel (CP-60)
Start Here
Home
Sync
Sensor
Forward
Limit
Reverse
Limit
accel/decel
(CP-60)
Accel/Decel
(CP-60)