Siemens SINUMERIK 840D sl Commissioning Manual page 530

Configuring cycles
22.6 Swiveling
Note on marker _M40
This marker is called before the calculation and activation of the Toollcarrier function as user
initialization. This makes it possible for special kinematics, to calculate or rewrite the current
vectors of the active swivel data set.
Boring mill application example: For parallel axes, the vector in the Z direction can be
updated with the actual value of the W axis.
A STOPRE is integrated for this marker.
The manufacturer can test as to whether this STOPRE for marker M40 in CUST_800.spf
complies with his functional requirements. In this case, you must weigh up between velocity
(without STOPRE) and functionality for interrupt conditions (RESET) for a swivel plane. This
also depends on the type of machine kinematics.
Note on markers _M41 to _M45
The retraction strategy prior to swiveling the rotary axes can be modified at the markers
_M41 to _M45.
Note on marker _M46
Retraction before swiveling after a block search can be set at marker _M46. Variable
_E_VER is 1 if it is a milling technology program.
Note on markers _M57 to _M59
Markers _M57 to _M59 are used for swiveling in JOG mode and active 5-axis transformation
(TRAORI).
Note on "Correct tool"
"Correct tool" requires that a 5-axis transformation is set up which is equivalent to the
corresponding swivel data set. The programming section for "Correct tool" is integrated in
the markers _M20, _M21, _M22 and _M30. The first 5-axis transformation is called with
TRAORI(1).
Note on tool change + swivel
In general, the swivel (CYCLE800) and tool change functions for a machine are independent
of each other. Thus, the swiveled work plane can be retained in a technological sequence
with multiple tools, e.g. centering, drilling, tapping.
If the rotary axes of the active swivel data set are involved in the mechanical sequence of the
tool change or have to be retracted, this must be taken into account in the tool change
program. After the tool change, the rotary axis positions are approached as prior to the tool
change. If linear axes (geometry axes) are also involved in the tool change, the rotations in
the NC (swivel frame) must not be deleted. Rather, the linear axes can be positioned as
machine axes using the G153 or SUPA commands.
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Commissioning Manual, 03/2013, 6FC5397-1DP40-3BA1
SINUMERIK Operate (IM9)