Preconditions - Siemens SINUMERIK 840D Programming Manual

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4.2

Preconditions

Data block for turning cycles
The turning cycles require module GUD7.DEF. It is
supplied on diskette together with the cycles.
Call and return conditions
The G functions active before the cycle is called and the
programmable frame remain active beyond the cycle.
Plane definition
The machining plane must be defined before the
cycle is called. In the case of turning, this is usually
the G18 (ZX) plane. The two axes of the turning
plane are referred to below as the longitudinal axis
(first axis of this plane) and the plane axis (second
axis of this plane).
If diameter programming is active, the second axis
of the plane is always taken as facing axis (see
Programming Guide).
Spindle handling
The turning cycles are written in such a way that the
spindle commands always refer to the active master
spindle of the control.
If you want to use a cycle on a machine with several
spindles, the active spindle must first be defined as
the master spindle (see Programming Guide).
© Siemens AG, 2002. All rights reserved
SINUMERIK 840D/840Di/810D Programming Guide Cycles (PGZ) – 11.02 Edition
Turning Cycles

4.2 Preconditions

X
G18
Longitudinal axis
4
Z
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