CNC 8035 - Programming manual - Fagor Automation

3.4 Absolute/incremental programming (G90, G91)
The CNC allows the programming of the coordinates of one point either with absolute G90 or
incremental G91 values.
When working with absolute coordinates (G90), the point coordinates refer to a point of origin of
established coordinates, often the part zero (datum).
When working in incremental coordinates (G91), the numerical value programmed corresponds to
the movement information for the distance to be traveled from the point where the tool is situated
at that time. The sign in front shows the direction of movement.
The G90 and G91 functions are modal and are incompatible.
Example programming the X axis in diameter.
Absolute coordinates:
G90 X200 Z60 ; Point P0
X160 Z60 ; Point P1
X80 Z100 ; Point P2
X80 Z120 ; Point P3
Incremental coordinates:
G90 X200 Z60 ; Point P0
G91 X-40 ; Point P1
X-80 Z40 ; Point P0
Z20 ; Point P3
On power-up, after executing M02, M30 or after an EMERGENCY or RESET, the CNC will assume
G90 or G91 according to the definition by the general machine parameter "ISYSTEM".
Programming manual
AXES AND COORDINATE SYSTEMS
Absolute/incremental programming (G90, G91) 3.
CNC 8035
·T· MODEL
(SOFT V16.3X)
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