Specifications

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3BUS 208 000 R1301 99Platform Tuning
Setup Guidelines
When the Scanning Platform scans near an edge, the scan limits will change only
if the projected new scan limit will be outside the EOSDeadband value of the current
scan limit.
It is important that all of the setup parameters be entered in the same customer units.
Do not make either homeEdgeTrackingDistance or farEdgeTrackingDistance
smaller than the value for xdb located on the Frame Health Report. If either of these
tracking variables is made too small, the Scanning Platform may position part of
the window off the sheet edge, resulting in an increase in the dwell time at the edges.
As the EOSDeadband is made smaller, the Scanning Platform will report a larger
number of scan limit changes.
The relationship between the calculated scan limits and the detected edges is as
follows:
homeScanLimit = homeEOS + farWindowClearance + farEdgeTrackingDistance + EOSDeadband
farScanLimit = farEOS - farWindowClearance - farEdgeTrackingDistance - EOSDeadband
The tracking distance variables should be set such that the scan limit positions allow
the edge detectors to see the sheet edge. If the tracking distance is larger than the
detector offset value, the head will not move smoothly at the sheet edge. In general,
the tracking distances should meet the following inequality:
(Detector Offset - Window Clearence) > (Tracking Distance + EOSDeadband + xdb)
Entering AEOS Setup Parameters
Based on the previous guidelines, the following procedure will show how to enter
the AEOS setup values into the Scanning Platform, using the ft utility.
The values for homeDetectorOffset and farDetectorOffset can be measured on the
head package. The other values must be based on the desired performance of the
AEOS feature.
1. At the Service Workstation, access the Frame Health Report. See Figure 5-17.
2. Enter values, in customer units, for the following variables:
AEOS State
Home Det Offset
Far Det Offset
EOS Deadband
Max Edge Change
Home Edge Track
Far Edge Track
3. Reset the microcontroller to activate the changed offsets.
Use the command: uc_reset -f 0x1f
4. After about 30 seconds, put the platform in remote mode to synchronize the
encoder.
5. Put the platform in the on-sheet mode to resume normal operation.