4.
Verify that all interlocks are closed.
5.
Switch on mains power to the laser and controller.
6.
Set the operating parameters on the machine controller.
7.
Enable the RF power supply.
DANGER
Laser radiation hazard
Avoid exposure to direct and scattered radiation.
8.
Enable the shutter.
9.
Apply a
Laser enable
signal.
10. Apply an energy demand signal.
3.5. Shut-down
1.
Remove the energy demand signal.
2.
Remove the
Laser enable
signal.
3.
Close the shutter.
4.
Disable the RF power supply.
5.
Switch off mains power to the laser and controller.
6.
Turn off the coolant recirculating system (AOM and laser).
7.
Turn off the optics purge gas.
3.6. Emergency stop
An emergency stop is initiated by the OEM machine. The machine should automatically:
• Remove the
Laser enable
signal.
• Close the shutter.
• Remove the RF enable signal.
• Break the laser interlock circuit.
Important!
The laser will not restart unless the
Laser enable
signal is removed and re-applied. Control
signal timings must be respected when restarting. See section
.
3.7. Pulse compensation
SR AOM laser systems include a user-switchable pulse compensation feature, which when enabled,
slightly adjusts the output pulse duration to compensate for the natural ripple of the laser resonator
output power in order to maintain consistent pulse-to-pulse energy. With the pulse compensation
disabled, the pulse duration directly follows the user demand signal, but the pulse-to-pulse energy may
vary slightly, especially at shorter pulse durations. The default state is that pulse compensation is
enabled. Pulse compensation can be disabled by applying a high signal to connector U1, pin 9. See
3. Operation
16
906-0227-00 REV 1
Summary of Contents for SR 10 AOM
Page 1: ...USER MANUAL SR AOM series Sealed CO2 laser sources with integrated AOM...
Page 8: ...Preface iv 906 0227 00 REV 1...
Page 40: ...6 Installation 32 906 0227 00 REV 1...
Page 42: ...7 Transport and recommissioning 34 906 0227 00 REV 1...
Page 52: ...8 Interfacing 44 906 0227 00 REV 1...
