Cycles
2.4 Drilling cycles
Turning Part 2: Programming (Siemens instructions)
108 Programming and Operating Manual, 05/2012, 6FC5398-5DP10-0BA0
● Some parameters that may have only a few values are selected using the toggle key.
● For drilling cycles, it is also possible to call a cycle modally using the vertical "Modal call"
soft key.
The modal call is selected via "Deselect modal" from the drilling cycles list box.
● Press "OK" to complete your input (or "Cancel" in case of error).
Recompiling
Recompiling of program codes serves to make modifications to an existing program using
the cycle support.
Position the cursor on the line to be modified and select the "Recomp." soft key.
This will reopen the input screen from which the program piece has been created, and you
can modify and accept the values.
2.4 Drilling cycles
2.4.1 General information
Drilling cycles are motional sequences specified according to DIN 66025 for drilling, boring,
tapping, etc.
They are called in the form of a subroutine with a defined name and a parameter list.
They all follow a different technological procedure and are therefore parameterized
differently.
The drilling cycles can be modally effective, i.e. they are executed at the end of each block
which contains motion commands.
There are two types of parameters:
● Geometrical parameters and
● Machining parameters
The geometrical parameters are identical with all drilling cycles. They define the reference
and retraction planes, the safety clearance and the absolute or relative final drilling depth.
Geometrical parameters are assigned once during the first drilling cycle CYCLE82.
The machining parameters have a different meaning and effect in the individual cycles. They
are therefore programmed in each cycle separately.
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