Siemens Sinumerik 802D sl Programming Manual page 83

04.07
Spindle gear range selection
For the machine that has the gearbox with which gear range can be changed by
specifying an M code, specify the M code to select an appropriate gear range be-
fore specifying G96. For details, refer to the manuals published by the machine
tool builder.
Example of programming
N8 Mxx ;
N9 G96 S100 M03 ;
Fig. 3-20
Supplements to the constant surface speed control commands
S To execute the constant surface speed control, set the G92 coordinate system
or a workpiece coordinate system so that the X-coordinate value of the center-
line of the spindle will be "0" and program the operation on this coordinate
system. With this, X-coordinate values in a program represent the diameter of
workpiece accurately.
© SIEMENS AG 2007 All rights reserved
SINUMERIK 802D sl/840D sl840D/840Di sl/840Di/810D ISO Turning - - 04.07 Edition
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Movement Control Commands
3.5 Spindle function (S function)
M code for selecting gear range
(Example: Gear range No. 4)
3-83