
8.LASER OUTPUT CONTROL B-63662EN/01
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8.3.2 Feedrate and Power Control
Machining at a shift from block A to block B is carried out as shown
below.
Feedrate
/power
Sb, Pb, Qb
Fb
Time
Fr
Sb, Pr, Qr
Block B
Block A Te Lr
Sa, Pa, Qa
Fa
Se, Pe, Qe
Data for block A
Data for edge
machining
Data for block B
Fa : Feedrate in block A
Sa : Output peak value in block A
Pa : Pulse frequency in block A
Qa : Pulse duty cycle in block A
Se : Output peak value for piercing
Pe : Pulse frequency for piercing
Qe : Pulse duty cycle for piercing
Te : Piercing time
Lr : Return distance
Fr : Return speed
Pr : Return frequency
Qr : Return duty cycle
Fb : Feedrate in block B
Sb : Output peak value in block B
Pb : Pulse frequency in block B
Qb : Pulse duty cycle in block B
1 Decelerates to stop at the end of block A.
2 Retains the output power until the machine stops.
3 Carries out piercing according to the specified values after an in-
posithion check.
4 Starts movement specified in block B after piercing is
completed.
5 Before shifting to machining specified in block B, sets the
feedrate to a return speed and keeps it until the return distance is
traveled, then sets the output power to the output peak value for
cutting specified in block B. Also sets the return frequency and
duty cycle to restart.
6 After traveling the return distance, selects the cutting conditions
for block B and resumes cutting.