Programming Cycles; Call And Return Conditions; Plane And Axis Assignments - Siemens SINUMERIK 840D Programming Manual
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12.97
1
1.3
Programming cycles
A standard cycle is defined as a subroutine with a
name and a parameter list. The conditions described
in "SINUMERIK Programming Guide Part 1:
Fundamentals" apply when calling a cycle.
The cycles are supplied on diskette or, for the
MMC102, with the corresponding software release.
They are loaded into the part program memory of
the control via the V.24 interface (see Operator's
Guide).
1.3.1 Call and return conditions
The G functions active before the cycle is called and
the programmable frame remain active beyond the
cycle.
You define the machining plane (G17, G18, G19)
before calling the cycle. A cycle operates in the
current plane with
• Abscissa (1st geometrical axis)
• Ordinate (2nd geometrical axis)
• Applicate (3rd geometrical axis of the plane in
space).
In drilling cycles, the hole is machined in the axis
that corresponds to the applicate of the current
plane. The depth infeed is performed in this axis with
milling applications.
Plane and axis assignments
Command Plane
G17
X/Y
G18
Z/X
G19
Y/Z
Siemens AG 2000 All rights reserved.
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide, Cycles (PGZ) - 04.00 Edition
1.3 Programming cycles
Z
Perpendicular infeed axis
Z
Y
X
General
1
Y
X
1-19
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