LTT SLC-M+ Series, Руководство пользователя, Страница: 94 / 113

Chapter 3 Operation
93
6. Position Test: You can move the carriage by using this function. You can find the start
position by using this function too. (See 3.7.4.2 for more detail)
3.7.4.1 CCD shift and CCD Field Of View
This section will show you how to do the auto calibration of CCD Shift and CCD Field Of
View. It is very important for SLC-M+ cutting with CCD. It is a very basic setting for CCD.
If the number of CCD Shift and CCD Field Of View are not right, you can not get a accuracy
cutting with CCD.
Please do the
[Pixel to MM]
first and then
[Auto Calibration]
1. Preparation steps for CCD calibration.
Put a A4 paper at the center of the working area. Make sure the paper will not be moved
during the whole calibration.
Turn on the laser power key.
Press the Connection button and let the AutoCCD connects with CCD.
Please DO NOT select the [online] function to avoid the error while calibration.
Go to AutoCCD / File / Open Job. Open [Calibration_Circle_200.job]
Go to AutoCCD / CCD Setting tab. Key in the Password with [LTT].
2. Do the [Pixel to MM] calibration.
Press [Pixel to MM] button.
The AutoCCD will automatically send a P2MM.prn file to the machine and then marks two
circle on the A4 paper.
AutoCCD will automatically move the CCD to get the image, then calculate the pixel to
millimeter transform constant.
Finally you will see the number of [1 Pixel= mm] will be updated by AutoCCD.
You can do it again. Please don’t move the marked paper, and turn the laser power key off.
Then press [Pixel to MM] button again. It will do the above processes all over again.