Siemens SINUMERIK 828D Programming Manual page 118

Feed control
7.1 Feedrate (G93, G94, G95, F, FGROUP, FL, FGREF)
CAUTION
FGREF
value interpretation as degree/min applies in this case only if the radius reference
corresponds to the
• For
• For
Read reference radius
The value of the reference radius of a rotary axis can be read using system variables:
● In synchronized actions or with preprocessing stop in the part program via system
● Without preprocessing stop in the part program via system variable:
If no values are programmed, the default 360 mm/(2π) = 57.296 mm (corresponding to 1 mm
per degree) will be read in both variables.
For linear axes, the value in both variables is always 1 mm.
Read path axes affecting velocity
The axes involved in path interpolation can be read using system variables:
● In synchronized actions or with preprocessing stop in the part program via system
● Without preprocessing stop in the part program via system variables:
118
evaluation also works if only rotary axes are programmed in the block. The normal
FGREF
/ :
G71 G710 FGREF[A]=57.296
/ :
G70 G700 FGREF[A]=57.296/25.4
variable:
$AA_FGREF[<axis>]
$PA_FGREF[<axis>]
variables:
$AA_FGROUP[<axis>]
$AC_FGROUP_MASK
$PA_FGROUP[<axis>]
$P_FGROUP_MASK
default:
Current main run value
Programmed value
Returns the value "1" if the specified axis affects the
path velocity in the current main run record by means of
the basic setting or through
Otherwise, the variable returns the value "0".
Returns a bit key of the channel axes programmed with
which are to affect the path velocity.
FGROUP
Returns the value "1" if the specified axis affects the
path velocity by means of the basic setting or through
programming. Otherwise, the variable returns
FGROUP
the value "0".
Returns a bit key of the channel axes programmed with
which are to affect the path velocity.
FGROUP
programming.
FGROUP
Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
F
Fundamentals