HEIDENHAIN SW 54843x-03 DIN Programming - Manual (Page 398)

398 DIN Programming
4.29 Other G codes
Sleeve monitoring G930
G930 activates/deactivates the sleeve monitoring. When the
monitoring is activated, the maximum contact force for one axis is
defined. Sleeve monitoring can be activated for only one axis per NC
channel.
G930 moves the defined axis by the programmed distance D until the
defined contact force H has been reached.
Application example: G930 is applied to use the opposing spindle as
a mechatronic tailstock. In this case the opposing spindle is equipped
with a dead center and the contact force is limited with G930. A
prerequisite for this application is a PLC program from the machine
tool builder that enables the user to operate the mechatronic tailstock
in the Manual and Automatic operating mode.
Tailstock function
With the tailstock function, the control moves up to the workpiece and
stops as soon as the contact force has been reached. The remaining
path of traverse is deleted.
Example of tailstock function
The machine tool builder determines the scope of function
and behavior of G930. The machine manual provides
further information.
Parameters
H Contact force [dN]—The contact force is limited to the
given value
Q Axis number (X=1, Y=2, Z=3, U=4, V=5, W=6, A=7, B=8,
C=9)
D Incremental distance
Lag error monitoring is not activated until the acceleration
phase has been completed.
. . .
N.. G0 Z20 Pre-position slide 2
N.. G930 H250 D6 K-20 Activate the tailstock function—contact force
250 daN
. . .