Program Running-In - Siemens SINUMERIK 840D sl Universal Operating Manual

Machining the workpiece

7.3 Program running-in

7.3 Program running-in
When testing a program, you can select that the system can interrupt the machining of the
workpiece after each program block, which triggers a movement or auxiliary function on the
machine. In this way, you can control the machining result block-by-block during the initial
execution of a program on the machine.
Note
Settings for the automatic mode
Rapid traverse reduction and dry run feed rate are available to run-in or to test a program.
Move by single block
In "Program control" you may select from among several types of block processing:
SB mode
SB1 Single block,
coarse
SB2 Data block
SB3 Single block, fine
Precondition
A program must be selected for execution in "AUTO" or "MDA" mode.
Procedure
140
Scope
Machining stops after every machine block (except for cycles).
Machining stops after every block, i.e. also for data blocks (except for cycles)
Machining stops after every machine block (also in cycles)
1. Press the "Prog. ctrl." softkey and select the desired variant in the "SBL"
field.
2. Press the <SINGLE BLOCK> key.
3. Press the <CYCLE START> key.
Depending on the execution variant, the first block will be executed. Then
the machining stops.
In the channel status line, the text "Stop: Block in single block ended"
appears.
4. Press the <CYCLE START> key.
Depending on the mode, the program will continue executing until the
next stop.
5. Press the <SINGLE BLOCK> key again, if the machining is not supposed to
run block-by-block.
The key is deselected again.
If you now press the <CYCLE START> key again, the program is executed
to the end without interruption.
Operating Manual, 07/2021, 6FC5398-6AP40-6BA4
Universal