Axial Feedrate (Fa) - Siemens SINUMERIK 828D Function Manual

2.7.12

Axial feedrate (FA)

An axial feedrate can be specified in a synchronized action via the
feedrate is modal.
Examples
Constant feedrate value:
Program code
ID=1 EVERY $AA_IM[B]>75 DO POS[U]=100 FA[U]=990
Variable feedrate value:
Program code
ID=1 EVERY $AA_IM[B] > 75 DO POS[U]=100 FA[U]=$AA_VACTM[W]+100
IDS=2 WHENEVER $A_IN[1] == 1 DO POS[X]=100 FA[X]=$R1
Remarks
● The default value for the feedrate of positioning axes is set via axial machine data:
● The axial feedrate can be specified as a linear or revolutional feedrate.
● The feedrate type can be switched synchronous to the part program via the
See also
Starting/stopping axes (MOV) (Page 90)
Synchronized actions
Function Manual, 07/2012, 6FC5397-5BP40-3BA0
MD32060 $MA_POS_AX_VELO (initial setting for positioning axis velocity)
The feedrate type can be set via the setting data:
SD43300 $SA_ASSIGN_FEED_PER_REV_SOURCE (revolutional feedrate for
positioning axes / spindles)
commands. Refer to:
FPRAOF
References:
/FB1/ Function Manual Basic Functions; Feedrates (V1)
Note
So that technology cycles executed in parallel do not obstruct each other, the axial
feedrate from synchronized actions is not output as an auxiliary function to the NC/PLC
interface.
Detailed description
2.7 Actions in synchronized actions
command. The axial
FA
FPRAON
and
91