Siemens SINUMERIK 840D sl Programming Manual page 126

Feed control
7.4 Positioning spindles (SPOS, SPOSA, M19, M70, WAITS)
M<n>=19:
M<n>=70:
FINEA:
COARSEA:
IPOENDA:
S<n>:
IPOBRKA:
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Set the master spindle (M19 or M0=19) or spindle number <n>
(M<n>=19) to the angular position preset with
SD43240 $SA_M19_SPOS with the position approach mode preset in
SD43250 $SA_M19_SPOSMODE.
The NC block is not enabled until the position has been reached.
Switch the master spindle (M70 or M0=70) or spindle number <n>
(M<n>=70) over to axis mode.
No defined position is approached. The NC block is enabled after the
switchover has been performed.
Motion end when "Exact stop fine" reached
Motion end when "Exact stop coarse" reached
End of motion on reaching "interpolator stop"
Spindle for which the programmed end-of-motion criterion is to be
effective
Spindle number
<n>:
If a spindle is not specified in [S<n>] or a spindle number of "0" is
specified, the programmed end-of-motion criterion will be applied to the
master spindle.
A block change is possible in the braking ramp.
Channel axis identifier
<axis>:
Instant in time of the block change with reference to
<instant in
the braking ramp
time>:
Unit:
Range of values:
If a value is not assigned to the <instant in
time> parameter, the current value of the setting
data is applied:
SD43600 $SA_IPOBRAKE_BLOCK_EXCHANGE
Note:
IBOBRKA with an instant in time of "0" is identical to
IPOENDA.
Percent
100 (application point of the
braking ramp) to 0 (end of the
braking ramp)
Programming Manual, 09/2011, 6FC5398-1BP40-2BA0
Fundamentals