maintenance/
troubleshooting
416
Synrad Firestar f-Series operator’s manual
Troubleshooting
On f-Series lasers, the over-temperature fault (indicated by the Temp indicator turning red) is latched. This
means that if an over-temperature condition occurs the Temp indicator will turn red, the Over Tempera-
ture output will Close, the Ready light goes out, and lasing is disabled. Because of its latched condition, the
Temp indicator will remain red even after the laser has cooled suciently to begin operation.
To reset an over-temperature fault, lower coolant temperature below 24 °C (f100/f200) or 28 °C (f201/
f400) and then cycle DC power (remove DC power, wait 30 seconds, reapply DC power). On Keyswitch-
equipped f100/f200 lasers you must also cycle the Keyswitch from OFF/RESET to ON (or with the
Keyswitch ON, apply a positive or negative voltage in the range of ±5–24 VDC to Pin 2, Remote Reset/
Start Request) after re-applying DC power. When the Ready indicator illuminates, lasing is enabled after
the ve-second delay. If the Temp indicator remains red after cycling power, continue to ow cooling water
through the laser for a few more minutes and then cycle DC power again.
Symptom:
■ A shutter closed condition is indicated by the following status LEDs and I/O states.
Remote Interlock LED – Green Interlock Open output – Open
Temp LED – Green Over Temperature output – Open
Ready LED – Yellow Laser Ready output – Closed
Shutter LED – O Shutter Open output – Open
Lase LED – O Laser Active output – Open
Possible Causes:
■ The Shutter Switch (f100/f200 only) is Closed.
If your Firestar f-Series laser is equipped with a Shutter Switch, slide the switch to the Open position. The
Shutter indicator will illuminate blue.
■ No Shutter Open Request signal on Pin 10 of the User I/O connector.
Check to see that a positive or negative voltage in the range of ±5–24 VDC is applied to Pin 10, Shutter
Open Request, with respect to Pin 11, Input Common, on the User I/O connector (refer to User I/O con-
nections in the Technical Reference chapter for details). If your system does not provide a Shutter Open
Request signal, connect the factory-supplied Quick Start Plug to the User I/O connector on the laser’s rear
panel or wire your male DB-15 connector so that Pin 11 (Input Common) is jumpered to Pin 12 (Aux-
iliary DC Power Ground) and Pin 10 (Shutter Open Request) is jumpered to Pin 4 (+5 VDC Auxiliary
Power).
Symptom:
■ Your OEM laser has quit lasing or lasing halted and then restarted. The Lase LED may be O or On
depending on whether PWM Command signals are being applied, but no fault is indicated.
Remote Interlock LED – Green Interlock Open output – Open
Temp LED – Green Over Temperature output – Open
Ready LED – Yellow Laser Ready output – Closed
Shutter LED – Blue Shutter Open output – Closed
Lase LED – O or On Laser Active output – Open or Closed
To Next Page
Loading...
