Path Feedrate F; General - Siemens SINUMERIK 828D Function Manual

V1: Feedrates

17.2 Path feedrate F

17.2 Path feedrate F
17.2.1

General

Path feedrate F
The path feedrate represents the geometrical total of the velocity components in the participating axes. It is
therefore generated from the individual motions of the interpolating axes.
The default uses the axial velocities of the geometry axes which have been programmed. The FGROUP command
can be used to include other geometry and/or synchronized axes in the calculation of the path feedrate.
The path feedrate F determines the machining speed and is observed in every type of interpolation even where
allowance is made for tool offsets. The value programmed under the address F remains in a program until a new
F value or a new type of feedrate is programmed.
Value range for path feedrate F
References:
Programming Manual, Fundamentals
Function Manual, Basic Functions; Velocities, Setpoint/ Actual Value Systems, Closed-Loop Control (G2)
F value at PLC interface
The F value of the current path feedrate is always entered in the channel­specific PLC interface for auxiliary
functions (DB21, ... DBB158 to 193).
You can find explanations about the corresponding interface signals (change signal, F value) in:
References:
Function Manual, Basic Functions; Auxiliary Function Output to PLC (H2)
Feedrate with transition circle
References:
Programming Manual, Fundamentals
1366
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions