
B-64663EN/01 LASER FUNCTION 5.LASER OUTPUT CONTROL
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Parameter
#7 #6 #5 #4 #3 #2 #1 #0
15001 LHC
[Data type] Bit
LHC Oscillator control (shutter open/close, beam on/off, assist gas control)
is:
0: Not performed by external signals. The shutter is opened and
closed by G32. (standard setting)
1: Performed by external signals. The shutter is opened and closed
using the shutter open signal (SHTON).
#7 #6 #5 #4 #3 #2 #1 #0
15004 STC
[Data type] Bit
STC Shutter control is performed by:
0: G32. (standard setting)
1: The shutter open signal (SHTON). (G32 is effective only for
assist gas control.)
With the standard setting, G32 can open and close the shutter and can
perform assist gas control. Use this parameter to make G32 valid only
for assist gas control (the shutter is opened and closed by the PMC.)
This parameter differs from bit 6 (LHC) of parameter No.15001.
When LHC is set, the PMC must perform both beam control and assist
gas control.
Alarm and message
No. Message Contents
4065 SHUTTER ACTION The operation of the shutter is abnormal.
4087 SHTTER OH The shutter has overheated.
NOTE
For the C series, the shutter cannot be opened
unless the oscillator is in the LSTR state.
For the Y series, the shutter can be opened even if
the oscillator is in the PURGE state. The oscillator
cannot, however, be started when the shutter is
open. An attempt to do this results in an alarm.