31
Synrad
Firestar OEM v30
reference guide
Troubleshooting
(cont.)
Cool the v30’s temperature to below 40 °C (air-/fan-cooled) or 22 °C (water-cooled) and then cycle DC power to the laser.
For air-/fan-cooled units, verify that cooling fans are free of debris and providing the proper airflow; for water-cooled units,
check that the chiller is maintaining the correct coolant temperature and flow rate.
Symptom:
■
The
RDY
indicator is flashing. The
PWR
LED is green and the
LASE
LED is Off. On the
Interface A
(DB-9) connector,
all outputs (
Lase Indicator
,
Laser Ready
,
DC Voltage Fault
, and
Overtemp Fault
) are Low. On the
Interface B
(RJ45)
connector, the
Laser Ok
signal is Low while
Voltage Ok
and
Temperature Ok
outputs are High.
Possible Causes:
■
A control board failure has occurred.
Contact SYNRAD or a SYNRAD Authorized Distributor.
Warning
serious
personal
injury
On Firestar OEM v30 lasers, DC voltage faults are not latched. Clearing a DC voltage
fault (under- or over-voltage) will restore normal operation and lasing is possible after
the five-second delay provided that the
Laser Enable
input signal is high. Because
exposure to 9.3–10.6 µm CO
2
laser radiation can inflict severe corneal injuries and seri-
ously burn human tissue, the OEM or System Integrator must ensure that appropriate
safeguards are in place to prevent unintended lasing.
Symptom:
■
The
PWR
indicator blinks once, pauses 1/2 second and repeats. Both
RDY
and
LASE
LEDs are Off. On the
Interface A
(DB-9) connector,
Lase Indicator
,
Laser Ready
, and
Overtemp Fault
outputs are Low, but the
DC Voltage Fault
out-
put is High. On the
Interface B
(RJ45) connector, the
Temperature Ok
signal is High while the
Laser Ok
and
Voltage
Ok
outputs are Low.
Possible Causes:
■
An under-voltage fault exists.
Check that the DC power supply is sup30 VDC under load and that its current capacity is 15 amperes or greater
(air-/water-cooled) or 16 amps or greater (fan-cooled) with a peak current capacity of 24 A for a minimum of 0.5 ms.
■
An under-voltage condition exists (DC power supply is current-limiting) because PWM signals were applied before tube
breakdown occurred.
On a cold start, verify that tickle pulses are being sent to the v30 laser for a period of five to ten seconds before a PWM
signal is applied.
Symptom:
■
The
PWR
indicator blinks twice, pauses 1/2 second and repeats. Both
RDY
and
LASE
LEDs are Off. On the
Interface A
(DB-9) connector,
Lase Indicator
,
Laser Ready
, and
Overtemp Fault
outputs are Low, but the
DC Voltage Fault
out-
put is High. On the
Interface B
(RJ45) connector, the
Temperature Ok
signal is High while the
Laser Ok
and
Voltage
Ok
outputs are Low.
Possible Causes:
■
An over-voltage fault exists.
Check that the DC power supply is sup30 VDC under load.
