
B-64663EN/01 LASER FUNCTION 8.CONTROL FUNCTION
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Operation
Piercing is performed as follows:
(1) The assist gas selection signals (AG1 to AG3) are asserted to
output an analog signal indicating the assist gas pressure.
(2) When the assist gas setting time elapses, an output command is
executed according to the specified peak value, initial frequency,
and initial duty cycle.
(3) When the specified step time elapses, the frequency and duty
cycle are increased by the specified increment.
(4) After the frequency and duty cycle are repeatedly varied as many
times as the step count at intervals of the specified step time, the
output is kept unchanged.
(5) When the piercing time elapses, the piercing operation is
terminated.
Command
(1) When the machining condition setting function is used
(a) Selecting the piercing data
Issuing a command with the E address followed by a
piercing data set number causes the data corresponding to
the specified number to be selected.
E101 ;
(b) Command
After selecting the piercing data, issuing G24; starts
piercing.
E101 ;
G24 ;
(c) Selecting the assist gas
To perform piercing with the assist gas specified as the
piercing data, use the following commands.
E101 ; Specify a piercing data set.
E5 ; Specify a machining data set.
G32L2
; Select the assist gas data
(L1 = machining data group; L2 =
piercing data group)
G24 ; Piercing command
(2) Command using the G code
G24S - P - Q - I - J - K - H - R - ;
where
S : Output peak value
P : Initial pulse frequency
Q : Initial pulse duty cycle
I : Frequency increment
J : Duty cycle increment
K : Step time
H : Step count
R : Piercing end time