Programming technology functions (cycles)
9.2 Rotate
Turning
366 Operating Manual, 01/2015, 6FC5398-8CP40-5BA2
Thread turning (CYCLE99)
Function
The "Longitudinal thread", "Tapered thread" or "Face thread" cycle is used to turn external or
internal threads with a constant or variable pitch.
There may be single or multiple threads.
For metric threads (thread pitch P in mm/rev), the cycle assigns a value (calculated on the
basis of the thread pitch) to the thread depth H1 parameter. You can change this value.
The default must be activated via setting data SD 55212
$SCS_FUNCTION_MASK_TECH_SET.
Please refer to the machine manufacturer's specifications.
The cycle requires a speed-controlled spindle with a position measuring system.
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.
The tool is retracted from the thread and the spindle is stopped.
2. Replace the tool and press the <CYCLE START> key.
The aborted thread cutting is started again with the interrupted cut at the same depth.
You have the option of subsequently machining threads. To do this, change into the "JOG"
operating mode and carry out a thread synchronization.
For simple machining operations, you have the option to reduce the wide variety of
parameters to the most important parameters using the "Input" selection field. In this "Input
simple" mode, the hidden parameters are allocated a fixed value that cannot be adjusted.
Various defined values can be pre
-assigned using setting data.
Please refer to the machine manufacturer's specifications.
If the workpiece programming requires it, you can display and change all of the parameters
using "Input complete".
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