WARNING:
Jog-Left and Jog-Right operations result in a change in the web guide position causing process
upset. Caution must be exercised when performing these functions and should be done by those who
completely understand the consequence of this change.
WARNING:
Jog-Left and Jog-Right operation can be performed only when the web guiding system is in
manual mode. Pressing the icons during automatic operation will perform a different function.
WARNING:
This is a manual procedure of the web guiding system. No personnel should be performing
work on or around the guide during the jog procedure. Failure to follow this warning could result in crushing
of body parts at pinch points around and within the web guiding system.
NOTE:
This functionality has no meaning for sensing application. However, some custom applications with
custom firmware may use the functionality.
Guide Point
The guide point is the desired reference position within the sensor window/range where the web needs to
be positioned for web guiding applications. The guide point is the reference position which is used to
compute the web position error for web guiding applications. When the web guide controller is in automatic
mode the error between the guide point and the actual web position will drive the actuator inorder to
minimize the error.
Typically the guide point is set to the exact middle of the sensor window/range. However, the guide point
can be changed electronically to any location within the sensing window.
Guide Point Indicator
The guide point indicator which is on top of the web position indicator, provides a visual indication of the
current guide point with respect to the sensor window/range. While in automatic mode, the web position
will line up with the guide point indicator when the web guide is in normal operation.
Guide Point Offset
The guide point offset from the middle of the sensor window/range is displayed as a signed numerical value
in millimeters. When the offset is 0 then the guide point is exactly at the middle of the sensor window/range.
When the offset is positive then the guide point is
on the right half of the sensor window/range while
when the offset is negative then the guide point is
on the left half of the sensor window/range.
Guide Point Adjustment
The guide point can be adjusted in two ways: fine
guide point adjustment for small incremental
adjustments and gross guide point adjustment for
large step change to the guide point.
Content subject to change without notice
SCU5: Sensor and Web Guide Controller User Manual v 3.6| Page 20
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