
B–70115EN/03
9. SETTING AND ADJUSTMENT
246
Fig. 9.1.2.7 (c) Adjust trimmer position (9 kW PSU)
(1)Specify the output of a half of the rated output value, and turn on the
beam. While checking that the power supply output (Note 4) does not
exceed the maximum power supply output (Note 4) and that the value
of DCV (Note 4) does not exceed 220 V with A14B–0082–B204, and
B205, and 230 V with A14B–0082–B206, B207, B208, B209, and
B210, increase the output gradually to the maximum command value
(Note 4). If the maximum value is about to be exceeded, turn VR13
counterclockwise to prevent the maximum value from being
exceeded.
(2)After output of the maximum command value, wait 3 minutes. Then,
adjust VR13 to set the power supply output to the maximum power
supply output (Note 4).
(3)Record the value of RFI or the values of RFI and DCV (See Note 1.)
(B). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(1)Three minutes after the beam is turned off, adjust RFI or DCV to the
value of (A) with VR11.
(2)Three minutes after the maximum command value is output, adjust
RFI or DCV to the value of (B) with VR13.
(3)Repeat (1) and (2) until no adjustment is required.
(4)Turn off the beam, and wait 3 minutes. Then, check that the laser
output Pa does not exceed the maximum base output (Note 4), and that
heat–sensitive paper does not react in the test of Note 3. If a problem
is observed, make another power supply adjustment.
(5)After output of the maximum command value, wait 3 minutes. Then,
check that the value of RFV does not exceed the maximum RFV (Note
4).
9.1.3
Maximum Output
Adjustment
9.1.4
Fine Adjustment of
VR11 and VR13