B-70265EN/02 3.INSTALLATION
- 51 -
3.3.9 Power Supply Margin Check (Pulse Check)
(1) Modify the parameters listed below.
PRM No.15000.2bit 1 (Use of assist gas is disabled at beam-
on.)
PRM No.15000.3bit 1 (Internal discharge is enabled in manual
mode.)
PRM.No.15008.6bit 0 (Automatic aging is disabled.)
PRM No.15002.0bit 1 (Internal discharge is enabled in
automatic operation mode.)
PRM No.15000.4bit 0 (Power correction is disabled.)
PRM No.15208 0 (Output feedback is turned off.)
PRM No.15209 0 (Output feedback is turned off.)
PRM No.15210 Value in PRM.No. 15207 (maximum output
power)
(2) Turn on the oscillator start switch to place the oscillator in the
discharge state.
(3) Set the manual mode, and perform internal discharge operation
under the following conditions.
Output = Value in PRM.No. 15207
Duty = 5%
Frequency = 5Hz
(4) Check that no alarm occurs for 30 minutes after beam-on.
If an alarm is issued, check the external laser gas piping and
laser gas composition, or perform discharge aging.
(5) Upon the completion of the check, restore the parameters
modified in step (1) to their original values.
3.3.10 Beam Mode Check
CAUTION
A beam mode deviation may occur depending on
the transportation method and storage condition.
When installing the oscillator, be sure to perform
this step. A mode deviation does not mean a
failure. Perform alignment by following the
procedure described in Subsection 8.3.2.
(1) Remove the guide pipe or the first bend mirror located between
the exit of the laser beam of the oscillator and machine.
(2) Start the oscillator.
(3) Output a laser beam by using programmed commands with the
output set to the rated output, a duty cycle set to 100%, and the
output duration set to 0.1 second. At this time, blow air with a
drier or the like.