Siemens SINUMERIK 840D sl Function Manual page 835

12.2 Asynchronous oscillation
Characteristics
The characteristics of asynchronous oscillation are as follows:
● The oscillation axis oscillates backwards and forwards between reversal points at the
● Linear interpolation G01 is active for the oscillation axis regardless of the G code
● Asynchronous oscillation is active on an axis-specific basis beyond block limits.
● Several oscillation axes (i.e. maximum number of positioning axes) can be active at the
● During the oscillation movement, axes other than the oscillation axis can be freely
● If the PLC does not have control over the axis, then the axis is treated like a normal
● The oscillation axis can act as the input axis for the transformations (e.g. inclined axis).
● The oscillation axis can act as the master axis for gantry and coupled motion axes.
● It is possible to traverse the axis with jerk limitation (SOFT) and/or with kneeshaped
● In addition to this, the oscillation movement can be activated in synchronism with the
● The oscillation movement can likewise be started, influenced and stopped from the
● Interpolatory oscillation is not possible (e.g. oblique oscillation).
Extended Functions
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
specified feedrate until the oscillation movement is deactivated or until there is an
appropriate response to a supplementary condition. If the oscillation axis is not positioned
at reversal point 1 when the movement is started, then it traverses to this point first.
currently valid in the program. Alternately, revolutional feedrate G95 can be activated.
same time.
interpolated. A continuous infeed can be achieved via a path movement or with a
positioning axis. In this case, however, there is no interpolative connection between the
oscillation and infeed movements.
positioning axis during asynchronous oscillation. In the case of PLC control, the PLC
program must ensure via the appropriate stop bits of the VDI interface that the axis reacts
in the desired way to VDI signals. These signals include program end, operating mode
changeover and single block.
References:
/FB2/ Function Manual, Extended Functions; Transmit/Surface area transformation (M1)
References:
/FB3/ Function Manual Special Functions; Gantry Axes" (G1)
acceleration characteristic (as for positioning axes).
block via the part program.
PLC/HMI.
Oscillation (P5)
Asynchronous oscillation
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