Siemens SINUMERIK 840D sl Function Manual page 834

Oscillation (P5)
Brief description
Control methods
Oscillation movements can be controlled by various methods:
● The oscillation movement and/or infeed can be interrupted by delete distance-to-go.
● The reversal points can be altered via NC program, PLC, HMI, handwheel or directional
● The feedrate velocity of the oscillation axis can be altered through a value input in the NC
● The oscillation movement can be controlled entirely by the PLC.
Methods of oscillation control
There are two modes of oscillation:
1. Asynchronous oscillation:
2. Oscillation by synchronized movement actions:
834
keys.
program, PLC, HMI or via an override. The feedrate can be programmed to be dependent
on a master spindle, rotary axis or spindle (revolutional feedrate).
References:
/FB1/ Function Manual Basic Functions; Feedrates (V1)
Is active across block boundaries and can also be started from the PLC/HMI.
In this case the asynchronous oscillation and an infeed movement are coupled via
synchronized actions. In this way, it is possible to program oscillation with infeed at the
reversal points which is active on a non-modal basis.
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Extended Functions