19
System Test
The operation of the laser is possible after the above connections are completed. To
test the laser, apply DC power (and the tickle command signal if desired). If the
software settings require a key switch, toggle it off and on. After about 6 seconds the
system is armed.
The interlock connections must be closed to operate the system.
Fault conditions can be detected by viewing the LED indicators on the rear of the laser.
Water and airflow faults take 20 seconds to indicate a fault. The signals monitored with
LEDs are:
Lights (cw) when the laser controller is ready for operation
Lights (cw) when the RFPA is getting too hot*
Lights (or blinks) when the controller is in a Fault state
Lights with varying brightness whenever RF power is generated
Lights (cw) whenever DC power is applied
Lights (cw) when the interlock switch is closed
Fault cw and Temp blink when too low or high flow rate
Fault blinks and Temp cw when air is out of range
*The 1625 is water cooled and therefore the Overtemp light should never light up;
however, if the cooling water gets hot enough this light will come on and the laser will
fault.
Laser Indicator Lights
To Next Page
