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Intervening In The Program Sequence - Siemens SINUMERIK 840D Operating Manual

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4.8

Intervening in the program sequence

4.8.1
Program control
You can change the program sequence in the "AUTO" and "MDA" modes.
Abbreviation/program
control
PRT
no axis motion
DRY
Dry run feedrate
RG0
Reduced rapid traverse
M01
Programmed stop 1
Programmed stop 2
(e.g. M101)
DRF
Handwheel offset
SB
SKP
Milling
Operating Manual, 03/2010, 6FC5398-7CP20-1BA0
Scope
The program is started and executed with auxiliary function outputs and dwell times. In this
mode, the axes are not traversed.
The programmed axis positions and the auxiliary function outputs are controlled this way.
Note: Program processing without axis motion can also be activated with the function "Dry
run feedrate".
The traversing velocities programmed in conjunction with G1, G2, G3, CIP and CT are
replaced by a defined dry run feedrate. The dry run feedrate also applies instead of the
programmed revolutional feedrate.
Caution: Workpieces must not be machined when "Dry run feedrate" is active because the
altered feedrates might cause the permissible tool cutting rates to be exceeded and the
workpiece or machine tool could be damaged.
In the rapid traverse mode, the traversing speed of the axes is reduced to the percentage
value entered in RG0.
Note: You define the reduced rapid traverse in the settings for automatic operation.
The processing of the program stops at every block in which supplementary function M01 is
programmed. In this way you can check the already obtained result during the processing of
a workpiece.
Note: In order to continue executing the program, press the <CYCLE START> key again.
The processing of the program stops at every block in which the "Cycle end" is programmed
(e.g. with M101).
Note: In order to continue executing the program, press the <CYCLE START> key again.
Note: The display can be changed. Please refer to the machine manufacturer's
specifications.
Enables an additional incremental zero offset while processing in automatic operation mode
with an electronic handwheel.
This function can be used to compensate for tool wear within a programmed block.
Note: You require the "Extended operator functions" option to use the handwheel offset (for
828D).
Individual blocks are configured as follows.
Single block, coarse: The program stops only after blocks which perform a machine function.
Data block: The program stops after each block.
Single block, fine: The program also only stops after blocks which perform a machine function
in cycles.
Select the desired setting using the <SELECT> key.
Skip blocks are skipped during machining.
Machining the workpiece
4.8 Intervening in the program sequence
151

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This manual also for:

Sinumerik828d

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