
B-63662EN/01 8.LASER OUTPUT CONTROL
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8.1.2 Pulse Frequency Command and Frequency Override
The frequency of the output pulse is specified by a value that follows
the P address in the laser output command.
G01 X_Y_F_S_Pxxxx ;
P : Specifies the pulse frequency.
Valid data range : 5 to 2000
Minimum increment : 1 Hz
When a laser output command is fetched from the program, if the P
address has a specified value, it updates the pulse frequency value in
the laser data area. The laser data area holds specified values. When a
laser output command is executed, data is read from the laser data
area and used, in conjunction with the pulse duty cycle described later,
to calculate the on/off time of the pulse, which is then sent to the laser
oscillator.
The laser data is also displayed on the laser setting screen, and can be
updated by key entries. There are two types of pulse frequency laser
data areas : one type for contouring and the other type for piercing.
Pulse frequency values specified in G01, G02, G03, and G12 are
stored in the laser data area for contouring. A pulse frequency value
specified in G24 is stored in the laser data area for piercing.
The PMC can override the pulse frequency value during command
execution. The override value can range between 0 and 200% (in 1%
steps).
Contouring
command
G01 Pxxxx;
Key entries
on the screen
Pulse
frequency
for
contouring
Piercing
command
G24 Pxxxx;
Pulse
frequency
for piercing
Overrid Frequency
clamp
Key entries
on the screen
Frequency override
Output
command
Laser data