17
Fig.4.3 Laser Shutter and Connections
Fig.4.4 Laser Utility Module
The Laser Utility Module provides laser head with calibrated power and filtered air flow
that circulates inside the laser head. The filters shouold be changed on the regular basis as
specified in the appendix A. It is directly connected to the source of 220VAC.
The laser is connected to the PLC through the serial port, it laser turns off when the
emergency stop button is hit and/or laser cabinet door is open. The gate signal from the scanner
turns the Laser Q-Switch on and off in synch with the movement of the scanner mirrors.
The safety shutter is installed in front of the laser beam output window. It will close
automatically when any door is open. The proximity sensor confirms the shutter position.
The beam is expanded using the two lens telescope in front of the scanner and then
focused on the wire 200mm objective after exiting the scan head. Changing the base between
telescope lenses or moving the objective up or down results in changing the focus distance and
therefore applied fluence (amount of energy per unit of target area delivered in one pulse) of the
incident beam. Focusing the beam closer to the wire surface reduces the beam footprint,
increases the fluence and may damage the insulation. Moving the focus away reduces the fluence
and may reduce the marking contrast. The optical configuration of the system is preset at the
factory for the optimum performance and should not be altered unless advised by authorized
factory representative.
The two dimensional scanner is capable of printing any alphanumerical message and/or
graphic image in the flat field of up to 10cm by 10 cm. The detailed scanner description is given
in
Appendix G
.
Key
Interlock
Serial to PLC
Filtered air
Water cooling
Shutter
solenoid
Shutter
Sensor
Power cable
On/Off button
Содержание M100LFG-TT/150
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Страница 73: ...73 14 List of Appendices A Laser Manual B Cooler Manual C Scanner Manual D ScanaloneCard Manual ...