operation
2
9
Synrad
Firestar i401
operator’s manual
Caution
possible
equipment
damage
Do not flow coolant through the laser for an extended period of time
when the laser is shutdown. This causes condensation to form inside
the laser which may result in catastrophic damage to internal optics
and electronic circuits.
Initial start-up
2
Slowly increase the duty cycle of the square wave. The
LASE
indicator illuminates red when PWM
signal pulses are long enough to produce laser output (typically 7–10 µs at 5 kHz). The spot where
the beam hits the beam block increases in brightness, indicating an increasing power output.
3
Remove the PWM Command signal from the
User I/O
connector. The
LASE
indicator turns off.
4
If you are connected to the i401’s
Ethernet
port, access the i401 web page to verify operating condi-
tions and functionality (refer back to Figure 1-12). See the Getting Started or Technical Reference
chapters for details on accessing the Firestar i401 web page.
5
Remove DC power from the laser.
6
Shut off the chiller or otherwise stop coolant flow through the laser.
7
Shut off gas purge flow to the laser. In dirty or dusty environments; however, it may be necessary to
purge the laser continuously to prevent contamination of internal optics.
If your Firestar i401 laser fails to lase, refer to
Troubleshooting
in the Maintenance/Troubleshooting chapter
for troubleshooting information.
