Synrad Firestar f series User Manual

maintenance/
troubleshooting
412
Synrad Firestar f-Series operator’s manual
Troubleshooting
Laser fault indications
On Firestar f100D/f200D and f201C/f400C lasers manufactured after November 2007, Ready (RDY) and
Shutter (SHT) LED’s ash to annunciate one of four laser faults. Table 4-9 lists error codes, the correspond-
ing fault, and describes basic corrective action. See the following section, Resetting faults, for detailed
corrective actions.
Table 4-9 Laser error codes
LED # of Blinks Fault Condition Corrective Action
RDY 1 blink Under Voltage Fault Verify 96 VDC (measured under load)/cycle power
RDY 2 blinks Over Voltage Fault Verify 96 VDC (measured under load)/cycle power
RDY 3 blinks RF Drive Switch Fault Remove DC power to the laser, wait 30 seconds, and
then reapply DC power
SHT Continuous VSWR Fault
1
Wait 60 seconds (see Note 1), then cycle DC power
1 A continuously ashing Shutter (SHT) LED indicates a VSWR fault. If a VSWR fault occurs, the laser is limited to a maximum
PWM pulse length of 12 microseconds (µs). This equates to a 6% duty cycle at 5 kHz or a 24% duty cycle at 20 kHz. If the VSWR
condition disappears, the laser will recover without cycling power. The leading causes of VSWR failures are environmental condi-
tions, like cold overnight temperatures when the laser is o, where it may take as long as 60 seconds to breakdown the tube and
begin normal daily operation.
Resetting faults
Remote interlock condition
A remote interlock condition occurs when the Remote Interlock input opens (the Remote Interlock LED
changes from green to red).
To reset a remote interlock condition on Keyswitch-equipped lasers, re-establish the Remote Interlock
signal input (Remote Interlock LED changes from red to green) and cycle the Keyswitch from OFF/RESET
to ON (or apply a ±5–24 VDC Remote Reset/Start Request pulse with the Keyswitch set to ON). When
the Ready indicator illuminates, lasing is enabled after a ve-second delay.
Warning
serious
personal
injury
On Firestar f-Series OEM lasers, remote interlock faults are not
latched. Clearing the fault condition re-enables the Ready indica-
tor and the laser will re after the ve-second delay provided that
the Shutter indicator is lit and a PWM Command signal is applied.
Because exposure to 10.6 µm CO
2
laser radiation can inict severe
corneal injuries and seriously burn human tissue, the OEM or System
Integrator must ensure that appropriate safeguards are in place to
prevent unintended lasing.

Synrad Firestar f series Specifications

General

Brand	Synrad
Model	Firestar f series
Category	Measuring Instruments
Language	English