
n
In the three-dimensional coordinate conversion mode, making the D3M input signal from PMC
(address G031.3) high moves the tool in the direction of an axis selected in the coordinate
system submitted to three-dimensional conversion (program coordinate system) during manual
jog, manual incremental feed, or manual handle feed.
When the D3M signal is LOW, three-dimensional conversion is not effective for the above three
manual operations even in the three-dimensional coordinate conversion mode.
Three-dimensional coordinate conversion can be applied to a desired combination of three axes
selected out of the basic three axes (X,Y,Z) and their parallel. The three-dimensional coordinate
system subjected to three-dimensional coordinate conversion is determined by axis addresses
specified in the G68.1 block. If Xp,Yp, or Zp is not specified, X,Y, or Z of the basic three axes is
assumed. However, if the basic three axes are not specified in parameter 1022 , P/S alarm No.48
occurs.
In a single G68.1 block, both a basic axis and a parallel axis cannot be specified. If this is
attempted, P/S alarm No.47 occurs.
Example ) G68.1 Xx0 YyO ZzO IO JO Kl R ~11 ;
G68.1 II JO KO R /3 ;
Z
X, Y, Z
: Workpiece coordinate system
x’ ,Y ,Z’ : Coordinate system formed after the first conversion
X” ,Y’ ,Z” : Coordinate system formed after the second conversion
a!
: Angular displacement of the first rotation
r6
: Angular displacement of the second rotation
w~,Yo,zo)
: Center of rotation
Rx ,Y, z)
: Coordinates in the x”Y”z” coordinate system (program coordinate system)
T*TLEFANUC Series 16/l 8-TC
FANUC Series 16i/l8i-TA
Three dimentional coordinate convertion
Specifications
DRAW-*. A-60545-E
CUST.
ZDIT.
DATE
DESIG.
DESCRIPTION
FANUC LTD SmET 4’14