
7.THREE-DIMENSIONAL MACHINING SYSTEM LASER FUNCTION B-64663EN/01
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7 During a proximity point search, all M and T codes are output;
they must be processed by the PMC.
8 Laser power is not output during a proximity point search.
9 If a search target program contains a command related to
reference position return, this command must be followed by an
absolute command. During a search, the G27, G28, G29, and
G30 commands are ignored, and the coordinates are set up again
with the subsequent absolute command.
10 Positioning to the searched-for block is performed on all axes
simultaneously. Upon the completion of positioning, the nozzle
assumes the position at the start point of the block.
11 In a system with attitude control B attached, if the operation of
G53 is not placed in the head fixing mode (bit 3 (MIA) of
parameter No. 15600 = 0), alarm PS4002 is raised.
12 If the nozzle is to be positioned in a block in G33 mode, the
nozzle is positioned at the coordinates specified by the program.
It is not positioned at the end point of the arc automatically
inserted.
13 Tracing in a proximity point search must be W-axis tracing. If
Z-axis tracing is specified, alarm PS4001 is raised.
14 In the program on which a proximity point search is performed,
manual operation must be performed with manual absolute on,
regardless of whether it is before or after machining.
15 After a proximity point search, manual intervention is not
possible before the program is restarted.
16 During a proximity point search, move commands with the
machine coordinate system (G27, G28, G29, G30, and G53) are
ignored.
17 If the end point of a block is near the reference position and the
next block is G27, G28, G29, G30, or G53, this block is assumed
to be near the reference position.
Signal
- Proximity point search signal
NRSRH<G226#0>
[Classification] Input signal
[Function] Selects the proximity point search function.
[Operation] 1 Place the system in memory mode.
2 Search for the beginning of the program.
3 Set the proximity point search signal (NRSRH) to "1."
4 Press the start button.
5 The above steps execute a proximity point search.
During the search, the proximity point search in progress signal
(LNSR) and the automatic operation started signal (STL) are
output.
6 Upon the completion of the search, the automatic operation
started signal is set to "0."
Then, set the proximity point search signal to "0" and press the
start button.
The proximity point search in progress signal is set to "0" and
machining can restart at the searched-for block.