Synrad Pulstar P100 Series, Operator'S Manual

Page: 47 / 110

operation
2
9 Synrad Pulstar p100 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.
Start-up and pulsed operation
Note: The laser’s maximum duty cycle percentage is limited at higher frequencies (see Table 2-1) to
maintain DC current within published specifications. If the duty cycle limit is reached, internal
control circuitry limits the duty cycle applied to the RF driver and continues lasing. The laser will
recover immediately and begin following the actual commanded duty cycle percentage when it is
lowered below the limits shown in Table 2-1.
Table 2-1
Pulse frequency/duty cycle range
Input Frequency Duty Cycle Range
< 50 kHz 0% – 37.5%
50 – 75 kHz 0% – 31.5%
> 75 kHz 0% –25.0%
2 When laser processing is complete, halt PWM pulse signals to the laser. The LASE indicator will
turn off.
3 Remove DC power from the laser.
4 Shut off the chiller or otherwise stop coolant flow through the laser.
5 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 Pulstar p100 laser fails to lase, refer to Troubleshooting in the Maintenance/Troubleshooting chapter
for troubleshooting information.