Spindle Oscillation Mode - Siemens SINUMERIK 802D sl Function Manual

Spindle (S1)
20.2 Spindle modes
Independent spindle reset
MD35040 SPIND_ACTIVE_AFTER_RESET defines the response of the spindle after reset
or program end (M2, M30):
● If MD value=0, the spindle is immediately braked to rest at the valid acceleration. The last
● If MD value = 1 (independent spindle reset), the last programmed spindle speed (S
20.2.2

Spindle oscillation mode

Note
The function for oscillation via the PLC is not available for the G/N plus and pro versions.
Starting oscillation mode
This oscillation movement makes it easy to engage a new gear stage. In principle, the new
gear stage can also be engaged without oscillation
The spindle is in oscillation mode if a new gear stage was defined using the automatic gear
stage selection (M40) or M41 to M45 (IS "Change gear" (V390x 2000.3) is enabled). The IS
"Change gear" is only enabled when a new gear stage is selected that is not the same as the
current actual gear stage. The spindle oscillation is started with the IS "Oscillation speed"
(V380x 202.5).
If the IS "Oscillation speed" is enabled without defining a new gear stage, the spindle does
not change to oscillation mode.
Oscillation is started with the IS "Oscillation speed". The setting of the IS "Oscillation via
PLC" (V380x 2002.4) distinguishes between:
● Oscillation via NCK
● Oscillation via PLC
344
programmed spindle speed and direction of rotation are deleted.
function) and the last programmed direction of spindle rotation (M3, M4, M5) are retained.
If prior to reset or end of program the constant cutting speed (G96) is active, the current
spindle speed (in relation to 100% spindle override) is internally accepted as the spindle
speed last programmed.
Note
The spindle can always be stopped with the IS "Delete distance-to-go / Spindle Reset".
CAUTION: The program continues at G94! With G95 the axes stop due to the missing
feedrates as does the program run if G1, G2, ... is active.
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0