Siemens SINUMERIK 840D SL Operating Manual page 413

Interruption of thread cutting
You have the option to interrupt thread cutting (for example if the cutting tool is broken).
1. Press the <CYCLE STOP> key.
2. Replace the tool and press the <CYCLE START> key.
Approach/retraction
1. Approach of the starting point determined in the cycle at the beginning of the run-in path
2. Infeed for roughing according to the defined infeed type.
3. Thread cutting is repeated according to the programmed number of roughing cuts.
4. The finishing allowance is removed in the following step with G33.
5. This cut is repeated according to the number of noncuts.
6. The whole sequence of motions is repeated for each further thread.
Procedure for thread chain
Milling
Operating Manual, 02/2012, 6FC5398-7CP40-3BA0
The tool is retracted from the thread and the spindle is stopped.
The aborted thread cutting is started again with the interrupted cut at the same depth.
for the first thread with G0
1. The part program to be executed has been created and you are in the
editor.
2. Press the "Turning" softkey.
3. Press the "Thread" softkey.
The "Thread" input window opens.
4. Press the "Thread chain" softkey.
The "Thread Chain" input window opens.
Programming technological functions (cycles)
8.4 Turning - only for G code programs
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