Feed Control; Feedrate (G93, G94, G95, F, Fgroup, Fl, Fgref) - Siemens SINUMERIK 840D sl Programming Manual

Feed control

7.1

Feedrate (G93, G94, G95, F, FGROUP, FL, FGREF)

Function
These commands are used in the NC program to set the feedrates for all axes involved in the
machining sequence.
Syntax
G93/G94/G95
F...
FGROUP(<axis1>,<axis2>, etc.)
FGREF[<rotary axis>]=<reference radius>
FL[<axis>]=<value>
Significance
G93:
G94:
G95:
F... :
FGROUP:
FGREF:
FL:
Fundamentals
Programming Manual 09/2011, 6FC5398-1BP40-2BA0
Inverse-time feedrate (in rpm)
Linear feedrate (in mm/min, inch/min or °/min)
Revolutional feedrate (in mm/revolution or inch/revolution)
G95 refers to the revolutions of the master spindle (usually the cutting spindle
or the main spindle on the turning machine)
Feedrate of the geometry axes involved in the movement
The unit set with G93/G94/G95 applies.
The feedrate programmed under F is valid for all axes specified under
FGROUP (geometry axes/rotary axes).
FGREF is used to program the effective radius (<reference radius>) for
each of the rotary axes specified under FGROUP.
Limit velocity for synchronized/path axes
The unit set with G94 applies.
One FL value can be programmed per axis (channel axes, geometry axis or
orientation axis).
The axis identifiers of the basic coordinate system should be
<axis>:
used (channel axes, geometry axes).
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