
B–70115EN/03
9. SETTING AND ADJUSTMENT
247
(1)With the C2000B and C2000C, specify a pulse test command in the
table of parameter No. 15207 and No. 15210.
(2)Output the pulse test command specified in the table by 5 Hz and 5%
for a pulse test time, and check that no alarm is issued. If a problem
is observed, make another power supply adjustment.
Return the modified parameter values to the original values.
NOTE
1 RFI and DCV value recording and adjustment
The laser power supply involves feedback at RFI. So, if the laser power feedback function is
disabled, RFI is stable when the continuous output command is used. Basically, measure RFI
for power supply adjustment.
If the NC monitor is away from the oscillator, and you have no assistant, make an adjustment
by using the value of DCV instead of RFI. However, use the value of RFI for final confirmation.
RFI+ (Voltage between RFI–N and RFI–O of CN18)/2 [A]
RFV+ (Voltage between RFV–N and RFV–P of CN18) 1000 [V]
DCI+ (Voltage between DCI–N and DCI–P of CN17) 5 [A]
DCV+ (Voltage between DCV–N and DCV–P of CN17) 30 [V]
Power supply output+DCI DCV [W]
2 Alarm processing after modification of intra–tube pressure at oscillation time and bias
command setting
After modification of parameter No. 15242 and No. 15243 [16–L, 16i–L] or parameter No. 236
[0–L] (intra–tube pressure at oscillation time) and parameter No. 15223 [16–L, 16i–L] or
parameter No. 250 [0–L] (bias command), take the actions below.
(a) If an alarm indicating a parameter value modification is displayed, reset the alarm, and set
HV ON.
(b) If an alarm requesting that the NC power be turned off is displayed, and purge operation
is started, turn off the power to the NC upon completion of purge operation, and restart.
3 Checking of electric shutter operation
(a) Insert heat–sensitive paper into the laser optical path after passing through the shutter
mirror, and output the continuous rated command value for 3 minutes. Then, execute the
following program (specifying OW for 60 seconds):
G32 P1 Q1;
G24 S0 P500 Q0 R60.0
G32 P0;
M02;
%
(b) Check that the heat–sensitive paper has not reacted.
9.1.5
Pulse Output Test
9.1.6
Completion of
Adjustment