
B-70315EN/02 5.TROUBLESHOOTING
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No. Cause of trouble Solution
1 Tool low supply
pressure of laser
gas
Adjust the secondary pressure at the regulator on
the gas cylinder so that the pressure of laser gas
supplied to the laser oscillator is
0.175MPa±0.025MPa (rating) as measured at the
entry of the oscillator.
2 No laser gas. Check whether the gas cylinder is empty or whether
the connection valve is closed. If empty, replace the
gas cylinder.
3
Leakage from the
gas tube leading
to the oscillator
Check that the gas pipe joint is secure. Also check
whether the tube or pipe is broken. If so, replace it.
4
Gas supply
pressure sensor or
cable abnormal
Check whether the gas supply pressure sensor is
set correctly. If not, set the sensor as explained in
Chapter 7. If the sensor cannot be reset, replace the
sensor.
ALM No.4074
ROOTS BLOWER TEMP.
For oscillators with a turbo blower attached, this alarm is not
issued.
Related parameters
PRM.15003 #5 TON Whether a turbo blower is attached (must be set
to "1")
ALM No.4075
CHILL TEMP.
A dew sensor is mounted to the output coupler holder in the
oscillator. This alarm occurs when the sensor detects
condensation. After this alarm occurs, the alarm status cannot be
reset until the condensation status is released.
Alarm output condition
This alarm is issued if the condensation signal becomes "0" from the
time the oscillator start switch is turned on until it is turned off.
Related data
DGN.961#2 *WT1 Condensation
No. Cause of trouble Solution
1 Tool low cooling
water temperature
Set the water temperature near the room
temperature (plus about 1°C). (Maximum water
temperature: 30°C)
2 Connecting
anomaly of dew
sensor cable
Check whether the cable is securely connected to
the dew sensor. If not, reattach the cable.
3 Anomaly of dew
sensor
If the sensor operates when there is no
condensation around the sensor, the sensor is
abnormal. Replace the sensor.
4 Sensor in
condensation
state
When drying the sensor that is in the condensation
state, do not blow on the sensor with hot wind whose
temperature is 60°C or higher.