
B-70265EN/02 3.INSTALLATION
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3.3.6 Discharge Aging
If the oscillator is left unused for a long time (three days or more), or
if the laser gas circulating system has been opened to the atmosphere
(for example, to clean the mirrors or replace gas system components),
aging is required. This involves warming up the discharge tubes and
circulating gas by performing internal discharge to output absorbent
contaminants as gas. If the laser gas circulating system has been
opened to the atmosphere, perform a leakage check before attempting
aging.
(1) When the laser gas circulating system has been opened to the
atmosphere
When the laser gas circulating system has been opened to the
atmosphere, perform discharge aging by using the automatic
aging function.
(a) Set bit 6 (EGE) of parameter No. 15008 to 1 to enable the
automatic aging function.
(b) Check and set the following parameters:
PRM No. Description C1000-E C2000-E C4000-E C5000-E C6000-E
15320 Laser output at power correction 1000 2000 4000 5000 6000
15321
Oscillating frequency command at power
correction
100 100 100 100 100
15322 Pulse duty command at power correction 100 100 100 100 100
15323 Correction time at power correction 180 180 300 300 300
15324
Gas pressure setting at power correction
(50 Hz)
600 660 730 840 620
15325
Gas pressure setting at power correction
(60 Hz)
600 660 730 840 620
15326 Laser output at aging 700 1000 2500 3500 4000
15327 Oscillating frequency command at aging 100 100 100 100 100
15328 Pulse duty command at aging 50 50 50 30 30
15329 Time per operation at aging 900 900 900 900 900
15330 Gas pressure setting at aging (50 Hz) 500 560 630 740 520
15331 Gas pressure setting at aging (60 Hz) 500 560 630 740 520
(c) Turn on the oscillator start switch (RUN) to enter the
discharge ready (LRDY) state. In this state, set the number
of aging operations in parameter No. 15334, and turn on the
discharge start switch (HVON). Aging is then performed as
many times as specified.
(d) After completing aging, the power compensation
coefficient is obtained, and the oscillation ready state
(LSTR) is entered, which makes the system ready for
processing.
(2) When the oscillator is left unused for a long time
When the oscillator is started with the automatic aging function,
the function determines the unused period and performs aging as
many times as required.
(a) Set bit 6 (EGE) of parameter No. 15008 to 1 to enable the
automatic aging function.
(b) Turn on the oscillator start switch.