Maintenance Details Of Parts; Protection Glass Of Laser Emission Port - Panasonic VL-W1-N Series Setup And Maintenance Manual

7-2 Maintenance Details of Parts

WARNING

7-2-1 Protection glass of laser emission port

A protection glass is attached to the laser emission port (lens). It protects the lens from dirt or damage. An antireflection
coating is applied to the protection glass surface in order to maintain appropriate transmittance.
Do not remove the protection glass during operation.
„ Effect from deterioration
The surface of the laser emission port may become contaminated by the dust and smoke during the laser processing.
Using laser welding machine with the contaminated laser emission port may cause the lens to get burned in. This may also
scratch the lens surface, or even peel off the surface coating depending on how it is used or cleaned.
Operations under these conditions will degrade transmittance of laser, which may lead to deterioration in quality of laser
processing.
„ Replacement interval
• Deterioration in quality of laser processing (density reduction, incomplete processing) is observed.
• There is contamination or scratch that cannot be removed by cleaning.
„ Replacement method
• Replace the protection glass of the laser emission port referring to "7-2-2 Replacement of the protection glass" (P.142).
If any damage of the laser emission port is observed when the protection glass is removed, our service representative
handles the replacement. Contact our sales office.
„ Cleaning steps for protection glass of laser emission port (Daily maintenance)
In order to maintain stable laser processing quality, the protection glass of laser emission port needs to be cleaned
regularly according to the usage environment.
1.
Turn OFF the key switch of the controller, and disconnect the AC power cable.
2.
Clean the protection glass of laser emission port with an
air duster for optics, and wipe it lightly with a soft cloth. If a
contamination is severe, use a soft cloth immersed in ethanol
to wipe it.
• Do not wipe the protection glass of laser emission port strongly, or touch it
with a sharp pointed object. Laser welding machine might become faulty.
WARNING
• Maintenance work must be conducted with the power to the laser welding
machine turned OFF, and the AC power cable disconnected. Doing so may
cause exposure to the laser beam or electrical shock.
• Do not insert your hands or objects to the exhaust port of each unit or the
gaps between units during the maintenance work. This may result in injuries,
electrical shock, or failure of the laser welding machine.
• Never use an inflammable air duster. The laser beam may ignite the gas,
resulting in fire.
ME-VLW1N-SM-1
Soft cloth
Protection glass
141