
B-70254EN/01 5.TROUBLESHOOTING
- 41 -
(3).Solution
Cause of trouble Solution
1 External laser gas pipe
abnormal
Check the faulty sections, then improve
external piping.
2 Laser gas composition
ratio abnormal
Replace the laser gas with one that satisfies
the specification.
If there is a leakage in external piping, the gas
composition in the gas cylinder connected to
the piping for a long time may change.
3 Discharge tube
abnormal
3 IF PCB abnormal
4 Laser power supply
abnormal
5 Laser power supply
maladjusted
6 Pressure sensor
abnormal
7 Internal leakage,
leakage of water, or
faulty O-ring
It is necessary to replace or adjust the part.
Call the FANUC service center.
ALM No.4065
Shutter anomaly
This alarm occurs when the shutter does not operate normally for
the shutter open/close commands. The table below lists the
causes of the fault and the corresponding countermeasures.
No. Cause of trouble Solution
1 Shutter clamp not
removed.
Remove the shutter clamp.
2 Anomaly of position
detector
3 Shutter cam
loosened.
4 Shutter arm caught.
5 Relay PCB B
abnormal
6 Anomaly of cables
connecting PCB.
It is necessary to replace or adjust the part.
Call the FANUC service center.
ALM No.4066
Discharge anomaly
After HV is turned on, the discharge starts. This alarm occurs
when at least one discharge tube discharges hard and causes high
voltage.
No. Cause of trouble Solution
1 Anomaly of
parameter setting
Check whether the numeric values in the
parameter list supplied with the unit are set.
2 Anomaly of laser
gas composition
Use the laser gas with the specified
composition and purity.