VALCO MELTON VCX, Руководство по обслуживанию

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Section 4 - Setup MC083 - VCX Service Manual
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White Value Calibration Procedure
The White Value Adjustment feature is only needed when the system is started at the time of installation, or after
changing the halogen lamp in the CDS sensor. The purpose for the procedure is to establish a base point by which
the system determines the true value of white.
To establish the White Value, you must first make certain the CDS sensor is very clean. Next, adjust the pre-folder
properly so that the cartons are flowing through with no interference or skewing. Be sure that the glue flap runs
through the pre-folder and is standing at a 90-degree angle to the gluer belt surface. You must select cartons that
contain a background of pure white. The use of any color other than white will confuse the system.
Proceed by following the online instructions for running (4) boxes past the sensor. Upon successful completion, a
message should appear indicating so.
There should be no need to sample the White Value again unless the lamp quality deteriorates to the point where
normal sampling is difficult to achieve.
The reading range selected must include approximately 5-6 mm of
white clear space before the leading edge of the code picture.
Changing the Halogen Lamp
A Valco Technician should change the CDS lamp, as it requires a critical calibration procedure to insure that it is
optimized for reading the full color spectrum.
Establishing a Baseline for the CDS Sensor
For each sensor, it is necessary to run a sample product so the system can “read” a sample code and establish the
code as the baseline to which all jobs will be compared. Code can be any combination of narrow or wide bars. It can
also be followed by 1-4 triangles.
To establish a baseline code for the CDS sensor, follow these steps:
1. Clean the CDS sensor, including the sensor lamp and the photocell.
2. With the sensor lamp turned off, jog a blank into the pre-folder. You will see two red dots.
3. Align the code picture between the two red dots. (The dots do nothing but give you a target. They have
nothing to do with the actual code reading.)
4. Ensure that the box runs freely through the pre-folder without dragging or hanging up.
The glue flap should be presented to the CDS camera at a right
angle and should run consistently. It is critical that the box runs
freely. Otherwise, the speed changes or angle changes will cause
errors in sample or production reading.
5. Turn the sensor lamp ON and switch the MCU control to the run mode.
6. Press the the icon for the CDS color-code-reader camera. This gives you a large picture of the glue flap
and as boxes pass you see a display of the code. The picture should be “clean”, with pixels between the
bars.
After cartons have been run, a message states that the operation
was successful and recommends that you now sample for the code.
7. Ensure that the folding section is empty and that the ejector is turned on.
8. Using one blank, sample the code reader.