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4.3. Troubleshooting
4.3. Troubleshooting
Table 4-1:
Troubleshooting
Symptom
Scanners will not
move.
Scanners move
uncontrollably
Scanners oscillate or
squeal
Reduction in power as
the laser beam passes
through the scan
head
AGV-SPO scanner
does not find marker
during homing cycle.
Beam motion in the X-
axis is irregular or
does not seem to
emanate from a single
pivot point.
Axis home positions
are not in the center
of the marking field.
42
Possible Cause
Controller trap or fault.
Motor and Feedback
connections
Gains not optimized
Encoder signals not
optimized
Motor and Feedback
connections
Gains not optimized
Encoder signals not
optimized
Optical surfaces
contaminated with dirt
and debris
Optical surfaces damaged
Motor and Feedback
connections
Mechanical stops have
shifted
X and XG are not
coordinated correctly
X or XG axis was homed
with axis coordination
active
AGV-SPO Hardware Manual
Possible Solution
Refer to the controller documentation.
Refer to
Section
3.1.,
Section
controller documentation.
Refer to the controller documentation for
tuning instructions.
Refer to the controller documentation for
encoder tuning instructions.
Refer to
Section
3.1.,
Section
controller documentation
Refer to the controller documentation for
tuning instructions.
Refer to the controller documentation for
encoder tuning instructions.
Refer to
Section 4.2.
Contact Aerotech service and/or a lens
supplier.
Refer to
Section
3.1.,
Section
controller documentation.
Contact Aerotech service.
Implement axis coordination per the
comments in the program included with the
system documentation.
Reset controller and Home axes prior to
initializing axis coordination. Refer to the
controller documentation for more
information.
3.2., and the
3.2., and the
3.2., and the
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