B-70315EN/02 5.TROUBLESHOOTING
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No. Cause of trouble Solution
3 Anomaly of power unit of IF
PCB (A16B-2100-0142)
See Subsection 3.3.1.4 for details of the
normal supply voltage. If the allowable
voltage range is exceeded, replace the IF
PCB.
4 Laser oscillator main circuit
breaker abnormal
Check whether the main circuit breaker is
conducting (ON) for all three phases.
ALM No. 4070
CHILLER NOT READY
Turning on the oscillator start switch causes the system to output
a chiller start request signal to the machine. After a chiller ready
signal is received from the chiller unit, this signal is monitored,
and if this signal is interrupted, this alarm is issued.
Alarm output condition
Monitoring starts in four seconds after the output of a chiller start signal,
and monitoring ends when the oscillator start switch is turned off.
If the chiller ready signal CLRDY (G221#6) becomes 0 during
monitoring, this alarm is issued.
Related data
G221 #6 CLRDY Chiller ready signal
F221 #4 CLON Chiller start request signal
No. Cause of trouble Solution
1 Failure in cooling water
supply unit
Check the cooling water supply unit.
2 Poor connection Check the connection between the
cooling water supply unit and CNC.
ALM No.4071
ASSIST GAS NOT READY
When starting machining, the CNC monitors the assist gas ready
signal from the assist gas supply unit in the machine. If this
signal is interrupted, this alarm is issued. This alarm is issued
also when in G32P
αQβ, α is not 0 to 3, or β is not 1 to 7 during
program execution.
Alarm output condition
This alarm is issued when the assist gas ready signal (G221#7)
becomes 0 during the assist gas output command.
Related data
G221 #7 AGRDY Assist gas ready signal
G222 #5 AGST Assist gas start signal
F222 #0-#2 AG1-3 Assist gas selection signal
Check the PMC parameter state, and check the signal from the assist
gas supply unit. If the signal is abnormal, check the assist gas supply
unit.
This alarm is issued also when in G32PαQβ, α is not 0 to 3, or β is
not 1 to 7 during program execution.
No. Cause of trouble Solution
1 Failure in assist gas
supply unit
Check the assist gas supply unit.