HEIDENHAIN ND 1300 VED and Crosshair Systems - Manual (Page 16)

Contents 0 QC-300 Series User’s Guide
Absolute .....................................................................................241
Setting a new machine zero reference ...............................................242
Reversing the encoder count direction ..............................................242
Enabling axis error messages ............................................................242
Specifying slew limit .........................................................................242
Squareness screen .....................................................................................243
SLEC screen .............................................................................................244
LEC or SLEC, which is right for my application? ...........................244
LEC (Linear error correction) ...........................................................244
SLEC (Segmented linear error correction) .......................................246
NLEC Screen ............................................................................................249
.acf Files ............................................................................................249
.acf file format ..........................................................................249
Example 3 X 3 grid ............................................................................249
Example .acf file ................................................................................249
Calibrating from features ...................................................................250
Calibrating NLEC by adjusting station values ..................................252
Calibrating NLEC by importing a text file ........................................253
VED screen ...............................................................................................254
Specifying minimum probed points ..................................................254
Specifying light settling time .............................................................254
Specifying contrast threshold ............................................................254
Locking the contrast threshold ..........................................................255
Enabling axis-zeroing on the video DRO ..........................................255
Enabling user access to magnification calibrations ...........................255
Displaying image controls .................................................................256
Adjusting the focus filter ...................................................................256
Performing camera skew calibrations ...............................................257
Specifying camera type .....................................................................257
Including the crosshair and stake marks in video archives ...............258
Specifying the quality of JPEG images .............................................258
Setting the JPEG image number ........................................................258
Magnifications screen ...............................................................................259
Adding video magnifications ............................................................259
Deleting video magnifications ...........................................................259
Calibrating video magnification pixel size ........................................260
Calibrating with a circle artifact .................................................260
Calibrating with a straight edge..................................................261
Assigning magnifications to zoom positions .....................................262
Performing video parcentric and parfocal calibrations......................263
Enabling magnification change messages .........................................266