Feedrate Type G93, G94, G95 - Siemens SINUMERIK 840D Function Manual

V1: Feedrates
5.2 Path feedrate F
Smoothed actual values are used for:
● Thread cutting (G33, G34, G35)
● Feedrate per revolution (G95, G96, G97, FPRAON)
● Display of speed, actual position and velocity
5.2.1

Feedrate type G93, G94, G95

Effectiveness
The feedrate types G93, G94, G95 are active for the G commands of group 1 (except G0) in the
automatic modes.
G94 or G95 can be used for traversing in JOG mode.
Further information
Manual traversing and manual traversing using a handwheel (Page 633)
Inverse-time feedrate (G93)
The inverse-time feedrate is used when it is easier to program the duration, rather than the
feedrate, for retraction of a block.
The inverse-time feedrate is calculated from the following formula:
F = v / s
with
Programming example
Program code
N10 G1 G93 X100 Y200 F2
...
Note
G93 may not be used when G41 / G42 is active. If the block length varies greatly from block to
block, a new F value should be programmed in each block for G93.
Linear feedrate (G94)
The linear feedrate is programmed in the following units relative to a linear or rotary axis:
● [mm/min, degrees/min] on standard metric systems
● [inch/min, degrees/min] on standard imperial systems
128
Inverse-time feedrate in rpm
F:
Required path velocity in mm/min or inch/min
v:
Path length in mm/inch
s:
Comment
; The programmed path is traversed in 0.5 min.
Function Manual, 06/2019, A5E47437747B AA
Axes and spindles