Siemens Sinumerik 840D sl Programming Manual page 235

G332 X... Y... Z... I... J... K...
● SPOS (or M70) only has to be programmed prior to tapping:
– For threads requiring multiple machining operations for their production
– For production processes requiring a defined thread starting position
Conversely, when machining multiple threads one after the other, SPOS (or M70) does not
have to be programmed (advantage: Saves time).
● The spindle speed has to be in a dedicated G331 block without axis motion before tapping
(G331 X... Y... Z... I... J... K...).
Meaning
G331:
G332:
X... Y... Z... :
I... :
J... :
K... :
Note
After G332 (retraction), the next thread can be tapped with G331.
Note
Second gear-stage data block
To achieve effective adaptation of spindle speed and motor torque and be able to accelerate
faster, a second gear-stage data block for two further configurable switching thresholds
(maximum speed and minimum speed) can be preset in axis-specific machine data deviating
from the first gear step data block and also independent of these speed switching thresholds.
Please see the machine manufacturer's specifications for further details.
References:
Function Manual, Basic Functions; Spindles (S1), Section: "Configurable gear adaptations".
Fundamentals
Programming Manual, 01/2015, 6FC5398-1BP40-5BA2
Command: Tapping
The hole is defined by the drilling depth and the thread lead.
Effective: Modal
Command: Tapping retraction
This movement is described with the same lead as the G331 movement. The
direction of rotation of the spindle is reversed automatically.
Effective: Modal
Drilling depth (end point of the thread in Cartesian coordinates)
Thread lead in X direction
Thread lead in Y direction
Thread lead in Z direction
Value range of lead:
Motion commands
±0.001 to 2000.00 mm/rev
10.11 Tapping
235