FANUC Series 16/18/160/180-Model C Machining Center Operators Manual

PROGRAMMING
8. COORDINATE SYSTEM
B–62764EN/01
114
The six workpiece coordinate systems specified with G54 to G59 can
be changed by changing an external workpiece zero point offset value
or workpiece zero point offset value.
Three methods are available to change an external workpiece zero
point offset value or workpiece zero point offset value.
(1) Inputting from the CRT/MDI panel (see III–11.4.6)
(2) Programming by G10 or G92
(3) Using the external data input function
An external workpiece zero point offset value can be changed by
input signal to CNC. Refer to machine tool builders manual for
details
ZOFS2
ZOFS3
ZOFS4
ZOFS5
ZOFS1
ZOFS6
EXOFS : External workpiece zero point offset value
ZOFS1AZOFS6 : Workpiece zero point offset value
EXOFS
Workpiece
coordinate
system 1 (G54)
Workpiece
coordinate
system 2 (G55)
Workpiece
coordinate
system 3 (G56)
Workpiece
coordinate
system 4 (G57)
Workpiece
coordinate
system 5 (G58)
Workpiece
coordinate
system 6 (G59)
Machine zero
Fig. 8.2.3 (a) Changing an external workpiece zero point offset value or workpiece zero point offset value
G10 L2 Pp IP _;
p=0 : External workpiece zero point offset value
p=1 to 6 : Workpiece zero point offset value correspond to workpiece
coordinate system 1 to 6
IP : For an absolute command (G90), workpiece zero point offset for
each axis.
For an incremental command (G91), value to be added to the set
workpiece zero point offset for each axis (the result of addition
becomes the new workpiece zero point offset).
IP
IP
G92 IP _;
IP
8.2.3
Changing Workpiece
Coordinate System
Format
D Changing by G10
D Changing by G92

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