
B-70315EN/02 5.TROUBLESHOOTING
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ALM No.4124
OVER COOL
The oscillator has a low temperature sensor on the side of
resonator plate to measure the temperature of cooling water.
Alarm output condition
This alarm is issued if the cooling water temperature becomes less than
20℃ after laser warm-up driving.
Related data
DGN.961#1 *CAT Low Temperature Sensor
No. Cause of trouble Solution
1 Faulty chiller unit Check temperature setting.
Or fix the chiller unit.
2 Faulty low temperature
sensor
Replace the temperature sensor.
3 Faulty intermediate PCB Replace the intermediate PCB.
4 Faulty interface PCB Replace the interface PCB.
5 Anomaly of connection
cable
Check the cable connections.
ALM No.4132
PARAMETER WAS CHANGED
This alarm is issued if a parameter is changed.
Alarm output condition
This alarm is issued if parameter No. 15223, 15242, or 15243 is
changed after the discharge start ready (LRDY) state is established.
Related data
PRM.15223 Specified discharge bias value
PRM.15242,15243 Setting of the pressure in the tube during oscillation
Before turning on the discharge start signal (HV ON), press the
RESET key to release this alarm.