Siemens SINUMERIK 828D Programming Manual page 116

Feed control
7.1 Feedrate (G93, G94, G95, F, FGROUP, FL, FGREF)
Change FGROUP
The setting made with
1. By reprogramming
2. By programming
Note
With
Units of measurement for feedrate F
In addition to the geometrical settings
define the measuring system for the feedrates
● For
● For
Note
G70
Unit of measurement for synchronized axes with limit speed FL
The unit set for
Unit for rotary and linear axes
For linear and rotary axes which are combined with
feedrate is interpreted in the unit of the linear axes (depending on the default with
mm/min or inch/min and mm/rev or inch/rev).
The tangential velocity of the rotary axis in mm/min or inch/min is calculated according to the
following formula:
F[mm/min] = F'[degrees/min] * π * D[mm]/360[degrees]
where:
116
FGROUP
FGROUP
FGROUP
In accordance with
FGROUP()
axes are now once again traversed in the path axis grouping.
, axis identifiers must be the names of channel axes.
FGROUP
: [inch/min]
G700
: [mm/min]
G710
/ have no effect on feedrate settings.
G71
using G command
F
F: Tangential velocity
F': Angular velocity
π: Circle constant
D: Diameter
can be changed:
: e.g.
FGROUP(X,Y,Z)
without a specific axis:
, the initial setting in the machine data applies: Geometry
and
G700 G710
. In other words:
F
/ is also valid for
G700 G710
Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
FGROUP()
, the G commands are also used to
.
FL
and traverse a path together, the
FGROUP
/ , in
G94 G95
Fundamentals