Siemens SINUMERIK 840D sl Function Manual page 679

Extended functions
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References: Parameter Manual, Book 2
Note
Information about other programmable end-of-motion criteria FINEA, COARESA, IPOENDA
can be found in:
References: Function Manual, Basic Functions
● Spindles (S1), Section "Spindle modes"
● Feedrates (V1), Programmable dynamic response of single axis section
Supplementary conditions
Premature block change
A premature block change is not possible in the following cases:
● Oscillating axis
During oscillation with partial infeed, the block-specific oscillation motion must remain active
until the axis with partial infeed has reached its final position.
● Handwheel
For handwheel input, the last set end-of-motion criterion applies.
Changing the axis state
The axis for which a block change occurred within the braking ramp can only be programmed
in the following block in the same axis state.
When the axis state changes, e.g. to POSfollowed by SPOS, the last programmed end-of-motion
criterion FINEA, COARSEA, IPOENDA is active. This also applies in the following cases:
● a positioning axis becomes a path axis
● if the program waits for the end of the positioning movement: WAITP, M30, end of the
technology cycle, preprocessing stop
● Velocity override is deactivated or activated
Note
For further information about programming positioning axes, see:
References:
Programming Manual, Fundamentals, Section "Feedrate control and spindle motion"
Programming Manual, Advanced, Section "Special motion commands"
Examples
Block change criteria "braking ramp" in the part program
Program code
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Comment
; Default setting is effective.
P2: Positioning axes
11.6 Block change
679

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