Spindle Movements; Spindle Speed S, Directions Of Rotation - Siemens SINUMERIK 802D sl Programming And Operating Manual

Programming

3.4 Spindle movements

3.4 Spindle movements
3.4.1

Spindle speed S, directions of rotation

Functionality
The spindle speed is programmed under the address S in revolutions per minute, if the ma-
chine has a controlled spindle.
The direction of rotation and the beginning or end of the movement are specified via M
commands.
M3
M4
M5
Note: For integer S values, the decimal point can be omitted, e.g. S270
Information
If you write M3 or M4 in a block with axis movements, the M commands become active be-
fore the axis movements.
Default setting: The axis movements will only start once the spindle has accelerated to
speed (M3, M4). M5 is also issued before the axis movement. However, it does not wait for
the spindle to stop. The axis movements begin before the spindle stops.
The spindle is stopped with the end of the program or RESET.
At the beginning of the program, the spindle speed is zero (S0).
Note: Other settings can be configured via machine data.
Programming example
N10 G1 X70 Z20 F3 S270 M3
...
N80 S450 ...
...
N170 G0 Z180 M5
3-52
; Spindle clockwise
; Spindle counterclockwise
; Spindle stop
; before the axis traversing X, Z the spindle accel-
erates to 270 r.p.m., clockwise
; Speed change
; Z movement, spindle comes to a stop
Programming and Operating manual, 06/2006, 6FC5398-4CP10-0BA0
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