HEIDENHAIN ND 1300 QUADRA-CHEK Guide De Démarrage Rapide page 5

Setup
3. Add camera magnifi cations
When video systems include more
than one magnifi cation, additional
magnifi cation positions must be added
and calibrated.
• Return to the setup menu and touch
the MAGNIFICATIONS menu item
to dsplay the MAGNIFICATIONS
SCREEN.
• Touch the NEW button to add a
new magnifi cation. A new BUTTON
LABEL number will be added. This
label will be available on the DRO
screen during measurements.
• The BUTTON LABEL can be changed
to any 3 character string. Touch the
BUTTON LABEL fi eld and enter a
new label if desired.
4. Calibrate magnifi cations
Use a circle calibration artifact to
calibrate magnifi cations.
• Touch the ID number in the
MAGNIFICATIONS setup screen
to show the desired magnifi cation
BUTTON LABEL.
• Touch the ARTIFACT DIAMETER fi eld
and enter the artifact diameter.
• Touch the TEACH button and follow
the instructions shown on the screen.
• Repeat this process for all
magnifi cations.
5. Calibrate camera skew
• Touch the VED setup menu item and
then touch the CAL button.
• Follow the instructions shown on the
screen.
6. Calibrate parcentric and parfocal
alignment
This calibration eliminates X and Y
axis offset errors that can occur when
changing video magnifi cations. Use
a circle calibration artifact for this
calibration.
• Touch the MAGNIFICATIONS setup
menu item.
• Touch the MAGNIFICATION
icon to display the
magnifi cation choices, then
select the highest level of
magnifi cation.
• Enter zeros for the PARCENTRIC and
PARFOCAL OFFSETS.
• Repeat to zero the offsets of all
magnifi cations.
• Select the highest level of
magnifi cation again.
• Measure the circle artifact and create
a zero datum on the circle center
point. Refer to the descriptions of
circle measurement and zero datum
creation later in this document if
necessary.
• Select the next lower level of
magnifi cation and measure the
same circle artifact. Make a note of
the X, Y and Z positions shown in
the measurement results for this
magnifi cation.
• Enter the X, Y and Z positions into the
OFFSET fi elds for this magnifi cation.
• Repeat this process to enter
values for all levels of magnifi cation.
Setup for the optical edge
option
1. Add comparator magnifi cations
When coparator systems include more
than one magnifi cation, additional
magnifi cation positions must be added.
• Touch the MAGNIFICATIONS menu
item to dsplay the MAGNIFICATIONS
SCREEN.
• Touch the NEW button to add a
new magnifi cation. A new BUTTON
LABEL number will be added. This
label will be available on the DRO
screen during measurements.
• The BUTTON LABEL can be changed
to any 3 character string. Touch the
BUTTON LABEL fi eld and enter a
new label if desired.
2. Calibrate optical edge detection
Teaching the edge detector calibrates
it to correctly recognize dark to light
transitions. Perform a TEACH calibration
after each startup, when lighting
changes, when the part changes and
when the magnifi cation level changes.
• Touch the TEACH button.
• Follow the instructions shown on the
screen to complete the calibration.
3. Calibrate crosshair offset
Crosshair offset calibration compensates
for the location differences between the
center of the crosshairs and the edge
detector. Crosshair offset calibration is
only necessary when crosshairs and
edge detection will be used to probe
points on the same part.
• Touch the CROSS CAL button.
• Follow the instructions shown on the
screen to complete the calibration.
Final setup for video and edge
options
1. Calibrate error correction
Linear (LEC), segmented linear (SLEC)
and nonlinear (NLEC) error correction
methods can be used to compensate
for encoder and machine errors.
OFFSET
Refer to the ND 1300 User Guide for
instructions.
2. Calibrate stage squareness
This calibration is not necessary when
NLEC error correction is used.
• Align the squareness calibration
artifact to the reference axis.
• Measure the artifact angle. Refer to
the angle measurement instructions
later in this document if necessary.
• Display the
touch the SQUARENESS menu item.
• Enter the measured angle into the
OBSERVED ANGLE fi eld and then
enter the certifi ed artifact angle into
the STANDARD ANGLE fi eld.
• Press the FINISH key to complete the
calibration.
Note:
Many more setup functions are available
beyond the minimum parameters
discussed here. Refer to the ND 1300
User Guide for detailed instructions.
SETUP MENU and then
3