Feedrate For Positioning Axes / Spindles (Fa, Fpr, Fpraon, Fpraof) - Siemens SINUMERIK 840D sl Programming Manual

Fundamentals
2.7 Feed control
2.7.5

Feedrate for positioning axes / spindles (FA, FPR, FPRAON, FPRAOF)

It is also possible to derive the revolutional feedrate for path and synchronized axes or for
individual positioning axes/spindles from another rotary axis or spindle.
Positioning axes such as workpiece transport systems, tool turrets and end supports are
traversed independently of path and synchronized axes. A separate feedrate is therefore
defined for each positioning axis.
A separate axial feedrate can also be programmed for spindles.
Syntax
Feedrate for positioning axis:
FA[<axis>]=...
Axis feedrate for spindle:
FA[SPI(<n>)]=...
FA[S<n>]=...
Derive revolutional feedrate for path/synchronized axes:
FPR (<rotary axis>)
FPR(SPI(<n>))
FPR(S<n>)
Derive rotational feedrate for positioning axes/spindles:
FPRAON(<axis>,<rotary axis>)
FPRAON(<axis>,SPI(<n>))
FPRAON(<axis>,S<n>)
FPRAON(SPI(<n>),<rotary axis>)
FPRAON(S<n>,<rotary axis>)
FPRAON(SPI(<n>),SPI(<n>))
FPRAON(S<n>,S<n>)
FPRAOF(<axis>,SPI(<n>), etc.)
FPRAOF(<axis>,S<n>, etc.)
Meaning
FA[...]=... :
FPR(...):
122
Feedrate for the specified positioning axis or positioning speed (axial fee‐
drate) for the specified spindle
Unit: mm/min or inch/min or degrees/min
Range of values: ... 999,999.999 mm/min, degrees/min
... 39 999.9999 inch/min
FPR is used to identify the rotary axis (<rotary axis>) or spindle
(SPI(<n>)/S<n>) from which the revolutional feedrate for the revolutional
feedrate of the path and synchronized axes programmed under G95 is to be
derived.
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
NC programming