Siemens Sinumerik 840D sl Programming Manual page 653

11.1 Asynchronous oscillation (OS, OSP1, OSP2, OST1, OST2, OSCTRL, OSNSC, OSE, OSB)
FA
OSCTRL
OSNSC
OSE
OSB
Job planning
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
Define feedrate
The feedrate is the defined feedrate of the positioning axis. If no feedrate is
defined, the value stored in the machine data applies.
Specify setting and reset options
Option values 0 to 3 encrypt the behavior at the reversal points on deactivation.
One of the variants from 0 to 3 can be selected. The remaining settings can be
combined at will with the selected variant. Multiple options are appended with
plus characters (+).
0 Stop at next reversal point on deactivation of oscillation
<value>:
(default)
Note:
Only possible if values 1 and 2 are reset.
1 When the oscillation is deactivated, stop at reversal point 1
2 When the oscillation is deactivated, stop at reversal point 2
3 When the oscillation is deactivated, do not approach
reversal point if no spark-out strokes are programmed
4 Approach end position after spark-out
8 If oscillation is canceled by deletion of distance-to-go,
sparking-out strokes will then need to be executed and the
end position approached if necessary.
16 If oscillation is canceled by deletion of distance-to-go, the
corresponding reversal point will need to be approached as
is the case with shutdown.
32 New feed is only active after the next reversal point
64 FA equal to 0, FA = 0: Path overlay is active
FA not equal to 0, FA <> 0: Speed overlay is active
128 For rotary axis DC (shortest path)
256 The sparking-out stroke is a dual stroke (default). 1=Single
stroke.
512 First approach start position
Define number of sparking-out strokes
Define end position (in workpiece coordinate system) to be approached after
deactivation of oscillation.
Note:
When programming OSE option 4 becomes effective implicitly for OSCTRL.
Define start position (in workpiece coordinate system) to be approached prior to
activation of oscillation.
The start position is approached before reversal point 1. If the start position
coincides with reversal position 1, reversal position 2 is approached next. No
stopping time applies when the start position is reached, even if this position
coincides with reversal position 1; instead, the axis waits for the exact stop fine
signal. Any exact stop condition configured is fulfilled.
Note:
Bit 9 in setting data SD43770 $SA_OSCILL_CTRL_MASK must be set to
initiate an approach to the start position.
Oscillation
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