RTC6 boards
Doc. Rev. 1.0.21 en-US
8 Advanced Functions for Scan Head Control and Laser Control
274
8.9 Timed Commands
“Normal” Vector Commands and “Arc” Commands
are executed in such a way that the laser focus moves
with a defined speed
(1)
. This is fine for most laser
marking and laser material processing applications.
At the beginning of a jump, the Signals for
“Laser Active” Operation are switched off. The
Signals for “Laser Standby” Operation are switched
on depending on the settings, see Chapter 7.4.1
”Enabling, Activating and Switching
Laser Control Signals”, page 184.
However, some applications require that each
Vector Command or “Arc” Command consumes
exactly the same amount of time, regardless of its
spacial length.
In this case, it is necessary to specify a jump duration
or mark process duration (rather than the
jump speed or mark speed).
Timed commands allow specification of the duration
of the Vector Command or “Arc” Command with an
accuracy of 10 µs (the output period of the
Microsteps) and in the range from 10 µs to
167,772,160 µs ( 2.8 min).
A vector or arc is split-up into the specified
(
T
Parameter) number of Microsteps.
For
T
5, the following applies:
Length
s of a Microstep = L / t
with t = integer( (
T
+ 5 ) / 10 )
(2)
Thus, jump speed and mark speed speed
automatically depend on the length of the vectors or
arcs.
The following timed commands are available:
• Vectors and arcs
– timed_jump_abs
– timed_jump_rel
– timed_mark_abs
– timed_mark_rel
– timed_arc_abs
– timed_arc_rel
• Parametrized vectors
– timed_para_jump_abs
– timed_para_jump_rel
– timed_para_mark_abs
– timed_para_mark_rel
• 3D vectors
– timed_jump_abs_3d
– timed_jump_rel_3d
– timed_mark_abs_3d
– timed_mark_rel_3d
• Parametrized 3D vectors
– tim
ed_para_jump_abs_3d
– timed_para_jump_rel_3d
– timed_para_mark_abs_3d
– timed_para_mark_rel_3d
Notes
• Aft
er a timed command, a “normal” Jump Delay,
Mark Delay or Polygon Delay is inserted.
• Ellipses are fundamentally not available as timed
commands.
• With
T
< 5 µs, a timed command ist synonym to
its “normal” (= without [timed_*])) command.
• The total execution time of a timed command is
the sum of the specified time and the associated
delay, see also Chapter 7.2.2 ”Scanner Delays”,
page 147.
(1) Either jump speed or mark speed.
(2) For
T
< 5, the command is carried out as non-timed
command, see Chapter 7.1.2 ”Microstepping”,
page 140.
To Next Page
Loading...