
5.TROUBLESHOOTING B-70265EN/02
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Alarm output condition
This alarm is issued when the actual laser output is in one of the
following conditions at the time of beam output:
(1) The actual laser output is higher than the average command power
(power × duty) by more than the value set in parameter No. 15265.
(2) The actual laser output exceeds the value set in parameter No.
15266.
The actual laser output is not monitored for five seconds after the beam
is turned on or the output is changed.
Related parameters
PRM.15215 Power input compensation coefficient
PRM.15265 Allowable output increase value
PRM.15266 Output limit
Related data
DGN.906 Actual output
No. Cause of trouble Solution
1 Excessive returning
beam back into the
resonator
Lower the output specified in the command, or
take an action to reduce the reflected laser
beam.
2 Anomaly of parameter
for alarm detection
Check the values set in PRM Nos. 15265 and
15266 against the corresponding values in the
parameter table attached to the unit.
3 Anomaly of output
table parameter
Check the values set in PRM Nos. 15280 to
15308 against the corresponding values in the
parameter table attached to the unit.
4 Anomaly of input
compensation
coefficient parameter
Check the value set in PRM No. 15215 against
the corresponding value in the parameter table
attached to the unit.
After replacing the rear mirror or power sensor, it
is necessary to change this parameter setting.
See Section 8.5.
ALM No.4069
LASER IF PCB
This alarm appears when there occurs the anomaly in the
stabilized power unit voltage +5,
±15, +24V of IF PCB for CNC
interface.
Alarm output condition
The enable signal in the IF in the IF PCB becomes "0" and this alarm is
issued when an error occurs in the stabilized power unit voltage (+5V,
±15V, +24V) after the start of the oscillator and immediately before the
completion of purging.
Related data
DGN.960#0 *ENB Enable signal in the interface
No. Cause of trouble Solution
1 Fuse blowing Correct the cause of the blown fuse, then
replace the fuse.
2 Anomaly of stabilized
power source unit
Check the output voltage (24V ±10%) of the
stabilized power source unit. If the
allowable voltage range is exceeded,
replace the unit.