
PROGRAMMING18. SPECIFYING THE LASER FUNCTION
B–63664EN/02
352
Step Step power
distance
mm
12345678910
301
Up 00.000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
301 Down 00.000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
302 Up 00.000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
302 Down 00.000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
303 Up 00.000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
303 Down 00.000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
304 Up 00.000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
304 Down 00.000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
305 Up 00.000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
305 Down 00.000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
The valid data ranges are as follows:
Ramp UP/DOWN step distance : 0 to 65.000 mm
Step power : 0 to 7000 W
Ramp UP/DOWN operation is performed by measuring the distance of
the straight line from the machining start point to the machining end point
in a single cutting block.
The number of steps in which the laser power is changed in step control
is 10. This number is fixed.
On the CNC, the data area for step control is reserved, but the screen for
setting the machining conditions is not provided. Access the data area
using C language function of a PMC.
In a machining program, step control mode is set by specifying command
E301 to E305. Only the laser power
is changed in step control mode; the
other machining conditions set with the previously specified E1 to E10
commands remain as is.
The ramp UP and DOWN distances cannot extend over multiple blocks.
Power override is effective for the laser power output in step control.
For an arc, step control is possible if the distance of the straight line from
the start and end points is longer than the sum of the ramp UP and DOWN
distances. A full circle, on which the start and end points are the same,
does not satisfy this condition and, therefore, step control is not possible.
If, however, the circle is divided in a machining program, step control can
be performed on each part of the full circle.
If, in the machining block subject to step control, the remaining amount
of movement becomes shorter than the DOWN distance before the
movement along the ramp UP distance is completed, an alarm is issued.
An alarm is also issued if movement along the ramp UP distance is not
completed in the single block.
Alarm No. Message (Japanese/English)
4131 Invalid step distance/STEP LENGTH
D Valid data ranges
D Number of steps
D Writing to and reading
from the data area
D Step control mode
D Step distances
D Power override
D Operation on arcs
D Alarm