Panasonic LP-400 Series External Control Manual page 145

Troubles
Marking cannot be done.
(The laser radiation
indicator does not
change to the marking
status.)
„Marking quality
Troubles
Marking fades entirely/
partially.
Causes
When the laser marker is under the
remote mode or run mode:
Next marking trigger signal is entered
before completion of current marking
cycle.
(E800 occurs.)
When the laser marker is under the
remote mode:
Marking trigger is input when the
READY output is OFF status.
Causes
Laser emission port is not clean.
Fumes occurring during marking hinder
laser beam.
Distance to object is not appropriate.
Target surface of object is inclined.
There are variations in properties of
objects.
• Object thickness
• Distance to object
• Object surface condition (including
roughness, gloss level, etc.)
• Object material (including chemical
composition ratio)
Object feeder is not stable.
Performance of laser oscillator
deteriorates due to aging.
ME-LP400V-EX-6
Measures
Enter next marking trigger signal after making
sure that READY output is on.
Refer to "READY signal is not turned to ON" in
the External Control Troubleshooting.
Measures
Refer to Operation/Maintenance Manual and
clean contaminants off the laser emission port.
If contaminants persist, replace lens and/or laser
emission port protection glass (for LP-V/LP-W
series only). Contact our sales office.
Install dust collector.
Check that dust collector works well.
Adjust distance between bottom surface of laser
maker and target surface of object.
Make adjustment so that bottom surface of laser
marker head and target surface of object are
parallel with each other.
Adjust marking conditions according to variations
found.
Adjust object feeder so that position of objects
become stable.
• Increase laser power setting.
• Decrease scan speed.
If initial marking quality cannot be reached even
if laser power is set to the upper limit, laser
oscillator must be replaced. Contact our sales
office.
145