Service manual

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GENERAL SETUP PROCEDURES
LABEL SENSOR SETUP
The label sensor is a “U”-shaped optical sensor that is connected to the sensor electronics with fiber optic
cable. To insure proper operation of the label sensor, there should be no sharp bends in the fiber optic
cable from the sensor to the applicator housing. The two sensor forks contain a light emitter and a
receiver. For best accuracy, both surfaces should be kept free of contaminants and the light emitter should
be in the lower fork. The web must be positioned inside the forks of the sensor so that the sensor can see
the label surface. The contrast inside the label should be fairly uniform to avoid false edge detects. If the
liner appears within the label, move the sensor in or out to avoid this area on the label. The label sensor
has two detection modes available for instances where the entire leading or trailing edge of the label is
similar in contrast to the label gap. The terms leading and trailing edge refer to the first and second label
edges that the sensor encounters as the label moves past the sensor. Select the edge option that gives the
most reliable performance for your particular label. The applicator comes from the factory set for leading
edge detection.
AUTO SETUP
In auto setup, the applicator will automatically set the label sensitivity, label length, and label stop values.
Also, it will calculate the “short feed distance” if the Leading Edge Apply option is enabled prior to
running auto setup. The following steps summarize the auto setup sequence:
1. With the applicator
offline, select “1” from the LABEL SETUP menu.
2. The display will show the two edge detection modes discussed in the paragraph above. Select “1”
for label LEADING EDGE or “2” for label TRAILING EDGE detection. If your selection is
different than the current sensor configuration, the applicator will display a message that it is re-
configuring the sensor. This process takes approximately 8 seconds to complete. If you want to
bypass this section, press “ENTER”.
3. The applicator will instruct you to move the web so that the label gap is under the sensor.
Manually turn the drive roller to advance the web to the label gap position and press “LABEL
SETUP”. The applicator will dispense 10” of label while dynamically setting the label sensitivity.
If you want to bypass this section, press “ENTER”.
4. If the LEADING EDGE APPLY option is
off, go to step 6. Enter the number of labels between
the label sensor and the peel edge. Make sure to include any labels that are partially hanging over
the peel edge or any directly under the label sensor in this number.
5. The applicator will instruct you to move the label leading edge to the peel edge and press
“LABEL SETUP”. Three labels are dispensed while the applicator is calculating the peel edge to
label sensor distance and the “Short Feed Distance” values.
6. The applicator will instruct you to move the web to the desired label stop position and press
“LABEL SETUP”. Three labels are dispensed while the applicator is calculating the label length
and label stop values. If you want to bypass this section, press “ENTER”.
Note: If the controller calculates a label stop value that is less than 0.03” or greater than (label
length – 0.06”), the controller will select the value closest to these limits and a warning
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