operation
29
Synrad Firestar ti-Series operator’s manual
Initial start-up
8
Turn on the DC power supply.
If the Quick Start Plug is installed, the INT (Remote Interlock) indicator will illuminate green and
the SHT (Shutter) indicator will illuminate blue—if the manual Shutter Switch is Open. The TMP
(Temperature) indicator will illuminate green if laser temperature is within safe operating limits.
Note: On a cold start, allow for five to ten seconds of tickle before sending PWM Command signals to
the laser.
Starting your Firestar ti-Series laser
Note: Firestar RDY and SHT LEDs denote separate control functions. Although the RDY lamp may
light while the SHT LED is Off (Shutter Switch Closed or Shutter Open Request signal missing),
no power is applied to the RF boards until both RDY and SHT indicators are illuminated.
1
If the laser has a Diode Pointer installed, remove its aperture dust cover.
2
Place the Shutter Switch (if equipped) in the Open position. The blue SHT (Shutter) indicator on
the laser’s rear panel will illuminate.
3
Rotate the Keyswitch (if equipped) to the ON position. Verify that the RDY (Ready) indicator on the
laser’s rear panel is illuminated.
Note: Each time an OEM laser is powered up or a keyswitch version is cycled OFF/ON, a five-second
delay occurs between the time that RDY and/or SHT indicators illuminate and Firestar is permit-
ted to lase.
Warning
serious
personal
injury
Because of phase differences, external tickle pulses may combine
with the internally-generated tickle signal causing the LASE LED to
flicker during the transition from tickle to lasing. Laser output may
occur if the LASE LED flickers.
Note: For remote keyswitch operation (keyswitch versions), you can set the Keyswitch to the ON posi-
tion and use the Remote Reset/Start Request input (on the User I/O connector) as a remote
keyswitch similar to other SYNRAD laser models.
4
Using your PWM Controller, slowly increase the duty cycle of the square wave. The LASE indicator
illuminates red when PWM pulses are long enough to produce laser output (typically between 3–6 µs
at 5 kHz). The spot where the beam hits the beam block increases in brightness, indicating increased
power output.
5
Remove the PWM Command signal from the User I/O connector. The LASE indicator on the laser
should turn off.
6
Place Firestar’s Shutter Switch (if equipped) in the Closed position.
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