
Edit.
5/07
Date Signature Change
FANUC Power Mate
i
-MODEL H
Electronic CAM Function (type B) Specifications
B-63173EN-1/01-10
the cam shaft
0 1 2 3 4 5 6
Example 2-2)Amount of a shift per one rotation of a cam shaft is 360 degree. In a cam shape
data that a phase of 0 degree (start point) is not equal to a phase of 360 degree
(end point), if the cam shape data is divided one rotation of cam shaft into 6
parts,
[Type A]
Impossible
[Type B]
The displacement of the cam follower corresponding to the phase numbers of the cam
shaft 0-6 (
•
in the figure) are set as the cam shape data. The number of points of the cam
shape data is 7.
Phase of the
0
°
180
°
360
°
cam shaft
Displacement of
the cam follower
Phase number of
the cam shaft
0 1 2 3 4 5 6
(3)
Notice in common with the type A and the type B
•
The cam shape data should be made the displacement of the cam follower that the
cam shaft makes just one rotation. Therefore, in case that if the cam shaft makes just
one rotation, the cam follower repeats N times the same motion, the data of N times
must be made.
(4)
Notice in case of the cam shape that the displacement of the cam follower of the start
point and the end point is “equal” in common with the type A and the type B
•
The cam followers must be linear axes (parameter No.1006#0(ROT)=0). If this setting
is wrong, the right motion is impossible.
(5)
Notice in case of the cam shape that the displacement of the cam follower of the start
point and the end point is “not equal” with the type B
•
The cam followers must be rotation axes (parameter No.1006#0(ROT)=1), be the roll
over valid (parameter No.1008#0(ROA)=1), and set n multiply (n=1,2,3,…) of the
displacement of the end point to amount of a shift per one rotation of rotation axes
(parameter No.1260). If this setting is wrong, the right motion is impossible.
•
The cam shape data must be made that the start point is the displacement 0, the end
point is the maximum displacement, as example 2-2. And the negative displacement
cannot be set.
•
If the cam followers is more than the feedrate calculated by following a expression, the
right motion may be impossible.
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