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

Programming

10.4 Spindle movement

10.4 Spindle movement
10.4.1

Spindle speed S, directions of rotation

Functionality
The spindle speed is programmed in revolutions per minute under the address S provided
that the machine possesses a controlled spindle.
The direction of rotation and the start or end of the movement are specified via M commands
(also see Section "Miscellaneous function M").
M3: Spindle clockwise
M4: Spindle counter-clockwise
M5: Spindle stop
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
before 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, there is no waiting
for spindle standstill. The axis movements begin before spindle standstill.
The spindle is stopped at program end or with RESET.
At program start, spindle speed zero (S0) is in effect.
Note
Other settings can be configured via machine data.
Programming example
N10 G1 X70 Z20 F300 S270 M3
...
N80 S450 ...
...
N170 G0 Z180 M5
252
; Before the axis traversing X, Z the spindle
accelerates to 270 rpm, clockwise
; Speed change
; Z movement, spindle comes to a stop
Programming and Operating Manual, 11/2012, 6FC5398-5CP10-3BA0
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