
B-63192EN/03 8.LASER OUTPUT CONTROL
- 31 -
8.1.4 Piercing Commands
The piercing function outputs the beam for a specified time, without
moving the machine. This function is used to pierce a workpiece with
the beam before starting to cut the workpiece.
The piercing commands support high-speed piercing, which allows a
hole to be made in a workpiece in a short time by gradually varying
the output.
Power control
The power control function controls the average output by increasing
the pulse frequency and duty cycle every specified unit of time, with
the output peak value fixed.
Duty cycle
Frequency
Number of steps
Frequency increment
Duty cycle increment
Step
Piercing time Time
0
Commands
(1) Direct command
When the following command is executed, high-speed piercing
starts. Those addresses enclosed in parentheses are optional,
but address H must be specified.
G24 (S_ P_ Q_ I _ J _ K_) H_ (R_) ;
S : Output peak value
P : Initial frequency
Q : Initial duty cycle
I : Frequency increment
J : Duty cycle increment
K : Step time
H : Number of steps
R : Piercing end time