
B-70255EN/01 6.TROUBLESHOOTING
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6.3 RESPONDING TO ALARM MESSAGES ON THE SCREEN
The alarm numbers, DGNs, and parameter Nos. are of the FS16i-L.
ALM No.4061
AD converter 1 is not normal.
Alarm output condition
This alarm is issued when the A/D converter 1 does not return the conversion
completion signal in the specified time after the start of conversion. This A/D
converter is designed to read gas pressure and power data.
Related parameters
DGN. 981 Data when A/D1 conversion becomes abnormal.
No. Cause of trouble Solution
1 Anomaly of AD
converter 1
Replace AD converter 1 mounted on B8 on
A16B-2100-0141.
2 Anomaly of IF PCB If this alarm is still issued after the A/D
converter 1 is replaced, replace the interface
PCB (A16B-2100-0141).
ALM No.4062
AD converter 2 is not normal.
Alarm output condition
This alarm is issued when the A/D converter 2 does not return the conversion
completion signal in the specified time after the start of conversion. This A/D
converter is designed to read discharge tube voltage and current data.
Related parameters
DGN. 982 Data when A/D2 conversion becomes abnormal.
No. Cause of trouble Solution
1 Anomaly of AD
converter 2
Replace AD converter 2 mounted on D7 on
A16B-2100-0141.
Call the FANUC service center.
2 Anomaly of IF PCB If this alarm is still issued after the A/D
converter 2 is replaced, replace the interface
PCB (A16B-2100-0141).
ALM No.4063
Anomaly of laser power supply unit
This message appears when the laser power supply unit becomes
abnormal or performs protective operation. For the causes of
trouble and their solutions, see the table below and Section 6.4.
The power supply unit performs protective operation even when
a part other than the power supply unit becomes abnormal, so
sufficient investigation is required. If just the power supply unit
is replaced without removing the fundamental cause, the alarm
will recur.