operation
29
Synrad Firestar f-Series operator’s manual
Initial start-up
9
Shut o gas purge ow 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 f-Series laser fails to lase, refer to Troubleshooting in the Maintenance/Troubleshooting
chapter for troubleshooting information.
Without a UC-2000 Controller
If you are not using a UC-2000 to control the laser, follow the procedure below to verify laser operation.
Although a tickle signal is not required, you will need to provide PWM Command signals to Firestar’s User
I/O connector. Refer to User I/O connections in the Technical Reference chapter for connector pinouts and
refer to Controlling laser power in the Technical Reference chapter for Command signal descriptions.
Important Note: Firestar f200 and f400 lasers are dual-tube lasers; all PWM, input, and output control
signals must be connected in parallel between both User I/O connectors.
Note: When performing the initial start-up sequence, you must rst connect the Quick Start Plug or you
must provide the required Remote Interlock and Shutter Open Request signals to the User I/O
connector. See User I/O connections in the Technical Reference chapter for User I/O pinouts and
signal descriptions.
Starting auxiliary equipment
1
Ensure that all personnel in the area are wearing protective eyewear.
2
Remove the red self-adhesive aperture seal from the laser faceplate.
3
Place a beam block 61 cm (24 in) from the laser aperture to prevent the beam from traveling beyond
the work area.
4
Connect the output of your PWM controller to PWM Input (Pin 9) on the laser’s User I/O connec-
tor and connect the ground or return of the controller to PWM Return (Pin 1). On f200/f400 lasers,
parallel this PWM signal between both User I/O connectors.
Caution
possible
equipment
damage
Inlet cooling water temperature must always be maintained above the
dew point to prevent condensation and water damage to your Firestar
laser.
5
Turn on the chiller and set the temperature setpoint between 18 °C–22 °C. Verify that the chiller is
delivering the recommended ow rate for your laser at less than 414 kPa (60 PSI) of pressure. Exam-
ine all cooling connections carefully and ensure that they do not leak.
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