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EDT.
DATE
DESIGN
DESCRIPTION
TITLE
No.
FANUC Series 16i/18i/21i/20i/160i/180i/210i/-MODEL A
CONNECTION MANUAL (FUNCTION)
Concerning the addition
of Single Direction Positioning Function
B-63003EN-1/02-04
DS0100-04
01 01.01.17 Newl
Re
istered
•
Notice
1.
Single direction positioning is not performed in an axis for which an overrun has not been set by the parameter (No.5440).
2.
When the move distance 0 is commanded, the single direction positioning is not performed.
3.
The mirror image does not influence direction set by the parameter..
The direction does not change during mirror image.
4.
No single direction positioning is effected in the drilling or tapping axis, during canned cycle for drilling and the rigid
tapping. But the single direction positioning is effected in the drilling or patting axis
5.
The single direction positioning can not be commanded during the cylindrical interpolation mode (G07.1).
6.
The single direction positioning can not be commanded during the polar coordinate interpolation mode (G12.1).
7.
The single direction positioning does not apply to the shift motion in the canned cycles of G76 and G87. (M series)
8.
The G-code for single direction positioning is always G60, if G-code system is A or B or C in all case.
(T series)
9.
The single direction positioning can not be commanded during the multiple repetitive cycle (G70-G76).
(T series)
10.
The single direction positioning can not be commanded during the canned grinding cycle (G71-G74).
(T series)
11.
The single direction positioning can not be commanded during the canned cycle (G90, G92, G94).
(T series)
• Notice in case of using with the angular axis control.
In the angular axis control, the distance traveled along the perpendicular axis (X) is corrected by the inclination of the angular
axis (Y), and is determined by the following formula.
Xa = - Yp
×
tanθ
The direction of "Xa" is determined by the inclination angle (θ) and the direction of the motion command to the angular axis (Y).
In case the value of tanθ is plus, the motion command of the angular axis (Y) and the corrected command of the perpendicular
(X) is opposite direction. For example, if the inclination angle is 30 degree and the motion command is plus to the angular axis
(Y), the corrected command to the perpendicular axis (X) is minus.
Therefore positioning direction may be disagree with the actual correct direction and the positioning direction of the parameter
No.5440 in the perpendicular axis (X) in the single direction positioning with angular axis control.
For avoiding this disagreement, please set the parameter as follows.
+Y(anglar axis)
+X(perpendicular axis)
coordinate system actually used
program coordinate system
move to plus direction
correct to minus direction : Xa
motion command to p lus : Yp
θ(inclination angle)