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12 Functional Descriptions 06.93
12.9 Thread cutting position controlled spindle (SW 2 and higher)
12.9 Thread cutting position controlled spindle (SW 2 and higher)
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The function THREAD CUTTING POSITION-CONTROLLED SPINDLE
is an option.
12.9.1 Corresponding data
• Option bit
• NC MD 1320*
1260*
1324*
108*
521* bit 4
• Signal DB 10 - 13 DR 13 bit 4
12.9.2 Description of function
The function is triggered when the control switches to linear interpolation between the spindle
as an axis and the infeed axis. The function will only run if the spindle is in axis mode.
The function can also be used for thread cutting on lathes. Transversal and longitudinal
threads (spindle as axis and linear axis) and tapered threads (spindle as axis and two linear
axes) can be cut. A linear increasing/decreasing lead (as for G34, G35) cannot be cut with
thread cutting, position control spindle (rigid tapping).
12–66
© Siemens AG 1992 All Rights Reserved 6FC5197- AA50
SINUMERIK 840C (IA)
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