B-70265EN/02 5.TROUBLESHOOTING
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5.1 TROUBLESHOOTING PROCEDURE
The troubleshooting procedure to be applied depends on the failure
occurrence status as indicated below. Perform checking according to
the items listed below.
(1) Action in response to alarm screen display (See Section 5.2.)
(2) Major faults
(a) Laser power supply unit alarm display (See Section 5.3.1.)
(b) The power cannot be turned off with the CRT/MDI power
switch. (See Section 5.3.2.)
(c) The power cannot be turned on with the CRT/MDI power
switch. (See Section 5.3.3.)
(d) The laser output level is low immediately after the power is
turned on. (See Section 5.3.4.)
(e) The laser output displayed on the CRT screen is unstable.
(See Section 5.3.5.)
(f) A cooling fan circuit breaker trips. (See Section 5.3.6.)
(g) The magnetic contactor for a exhaust pump causes thermal
trip. (See Section 5.3.7.)
(h) The main circuit breaker trips. (See Section 5.3.8.)
(i) Excessive laser gas consumption. (See Section 5.3.9.)
(j) A inverter related alarm is displayed. (See Section 5.3.10.)
CHECKING ON FAULTS
After identifying the following items, call the service center.
(1) General information on a fault
(a) Date and time of occurrence
(b) State of operation
(c) Timing of a fault (alarm)
(d) Alarm number
(e) How often the fault occurs
(2) Other information
(a) Oscillator and CNC unit names
(b) Oscillator serial number
(c) Machine tool builder name, machine type
(d) Software series and edition indicated on the CRT screen
when power is turned on
(e) Parameter settings;
check the current parameter settings with the corresponding
values indicated on the unit, and report your finding to the
service center.