Synrad Firestar f series User Manual

technical reference
326
Synrad Firestar f-Series operator’s manual
Integrating Firestar safety features
The Integrating Firestar safety features section includes subsections:
■ Keyswitch functions
■ Shutter functions
■ Remote Interlock functions
Firestar’s DB-15 User I/O connector allows system integrators or end-users to integrate Firestar safety fea-
tures into their control system. Firestar’s keyswitch, shutter, and remote interlock functions serve to enable
or disable DC power to Firestar’s RF drive. Without DC power, the RF driver cannot supply RF energy to
the resonator, causing the CO
2
gas to remain in a zero-energy state. Firestar status indicators provide users
with a quick visual indication of the laser’s operational status. All power to the laser’s RF board is removed
whenever Ready or Shutter indicators are O (Laser Ready or Shutter Open outputs open).
Keyswitch functions
Keyswitch lasers
After DC power-up or after a remote interlock fault, the Keyswitch must be toggled OFF/ON to reset the
laser and enable the Ready LED, signaling that DC power is applied to the RF driver. Over temperature
faults are reset by removing, then reapplying DC power after the laser has cooled.
For Keyswitch lasers in automated systems, this reset function is provided by the Remote Reset/Start
Request input on Pin 2 of the User I/O connector. To use this “remote keyswitch” functionality, rst place
the Keyswitch in the ON position. Then after each DC power-up cycle (or to reset a fault condition), apply
a momentary voltage in the range of ±5–24 VDC to Pin 2, the Remote Reset/Start Request input. Re-
moving voltage allows DC power to reach the RF driver and begins a ve-second countdown after which
lasing is enabled (Ready LED illuminates yellow). The RF driver is disabled as long as voltage is applied to
Pin 2.
Your control system can monitor the laser’s ready status on the User I/O connector by connecting your
system’s input between Pin 8, Laser Ready, and Pin 13, Output Common (see Figure 3-16). The Laser
Ready output closes when the laser is enabled (Ready LED illuminated yellow), indicating that lasing is
possible. The output is open (in a high-impedance state) and the Ready LED is o when lasing is disabled.
Note: After the Laser Ready output closes, a ve-second delay occurs before lasing is enabled.
OEM lasers
On OEM lasers, the Ready LED illuminates on DC power-up (provided that Shutter Open Request and
Remote Interlock inputs are enabled) and ve seconds later, DC power is applied to the RF driver. Over
temperature faults are reset by removing and then re-applying DC power after the laser has cooled. Remote
interlock faults are not latched; the Ready LED illuminates yellow as soon as the interlock circuit is closed
(when the Remote Interlock LED turns from red to green) and ve seconds later lasing is enabled.
Although a Remote Reset/Start Request input is not needed to reset OEM faults, it can be used to
inhibit (disable) lasing. Disable the laser by applying a voltage in the range of ±5–24 VDC to Pin 2, the
Remote Reset/Start Request input. Removing voltage allows DC power to reach the RF driver and be-
gins a ve-second countdown after which lasing is enabled (Ready LED illuminates yellow). The RF driver
is disabled as long as voltage is applied to Pin 2.
Your control system can monitor the laser’s ready status on the User I/O connector by connecting your
system’s input between Pin 8, Laser Ready, and Pin 13, Output Common (see Figure 3-16).

Synrad Firestar f series Specifications

General

Brand	Synrad
Model	Firestar f series
Category	Measuring Instruments
Language	English