Siemens SINUMERIK 840D sl, Function Manual

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Detailed description
2.6 Block search Type 5 SERUPRO
Basic logic functions: Mode group, channel, program operation, reset response (K1)
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Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Repositioning with RMN
Like
RMI
,
RMB
and
RME
,
RMN
(REPOS Mode Next) is redefined for SUREPRO approach.
After an interruption,
RMN
is used not to complete an already started repositioning, but to
process from the next path point:
At the time REPOSA is interpreted, position (B) is referenced in order to find point C at the
interruption block with the shortest distance to B. The repositioning block moves from B to C
to the end position.
A Actual position during search.
B Position reached using JOG key
after the SERUPRO operation.
C SERUPRO approach moves from B
after C as C is the point next to B in
target block 2-3.
A part program with the blocks
1-2, 2-3, 3-4.
A
B
C
1 2 3 4
Figure 2-7 SUREPRO approach under
RMN
Application and procedure
SUREPRO approach with
RMN
offers the oppotunity of using the application shown in the
figure: If a program abort is forced by RESET at any point when the program is advancing
from block 2 to 3,
•
RMN
is used to approach the abort location by the shortest route in order to process just
the distance to go from C-3 and 3-4. The user starts a SERUPRO operation at the
interruption block and uses the JOG keys to move in front of the problem component of
the target block.
•
RMI
and
RMB
are always approached with RMI and RMB and the target block thus
repeated once completely.