Fagor 8055 M - Page 70

·70·
Programming manual
CNC 8055
CNC 8055i
5.
ISO CODE PROGRAMMING
·M· & ·EN· MODELS
SOFT: V02.2X
Feedrate F
5.2.1 Feedrate in mm/min or inches/min (G94)
From the moment the code G94 is programmed, the control takes that the feedrates programmed
through F5.5 are in mm/min or inches/mm.
If the moving axis is rotary, the CNC interprets that the programmed feedrate is in degrees/minute.
If an interpolation is made between a rotary and a linear axis, the programmed feedrate is taken
in mm/min or inches/min, and the movement of the rotary axis (programmed in degrees) will be
considered programmed in millimeters or inches.
The relationship between the feedrate of the axis component and the programmed feedrate "F" is
the same as that between the movement of the axis and the resulting programmed movement.
Example:
On a machine which has linear X and Y axes and rotary C axis, all located at point X0 Y0 C0, the
following movement is programmed :
G1 G90 X100 Y20 C270 F10000
You g e t :
Function G94 is modal i.e. once programmed it stays active until G95 is programmed.
On power-up, after executing M02, M30 or following EMERGENCY or RESET, the CNC assumes
function G94 or G95 according to how the general machine parameter "IFEED" is set.
Feedrate component =
Feedrate F x Movement of axis
Resulting programmed movement
Fx
F x
x
2
y
2
c
2
++
-----------------------------------------------------------
10000 100
100
2
20
2
270
2
++
------------------------------------------------
3464 7946===
Fy
F y
x
2
y
2
c
2
++
-----------------------------------------------------------
10000 20
100
2
20
2
270
2
++
------------------------------------------------
692 9589===
Fc
F c
x
2
y
2
c
2
++
-----------------------------------------------------------
10000 270
100
2
20
2
270
2
++
------------------------------------------------
9354 9455===