
The process of judging whether the moving angle is smaller or larger as the output
judgement condition is called "movement judgement."
The current position of the rotation axis to be compared refers to an absolute
coordinate value.
The "movement judgement" process is explained below.
When the "computed angle" is within the range between 0 and 360 degrees, it is
called the "basic computed angle."
Usually, two pairs of "basic computed angles" exist.
For example, assume that the machine has rotation axis A (master) and rotation axis
B (slave) and that there are two pairs of basic computed angles as follows:
(A θ1 degree; B φ1 degree)
(A θ2 degrees; B φ2 degrees) where θ1 ≤ θ2 and φ1 ≤ φ2.
The "computed angle" is obtained from either of the following expressions: "basic
computed angle" + 360 degrees × N or "basic computed angle" - 360 degrees × N.
The current position of rotation axis A (master) is PA, and that of rotation axis B
(slave) is 0 degree.
Based on the PA angle, the "movement judgement" process is done as follows.
•
Computed angle A
-360
(N + 1) degrees
1 - 360
N
-360 × N degrees
2 - 360
N
2 - 360
(N + 1)
θ
1 - 360
×
(N - 1)
(*1)
0 degree
360 degrees
2 - 360
1
2
θ
1 + 360
(*2)
360
×
(N + 1) degrees
1 + 360
N
360
N degrees
2 + 360
×
N
2 + 360
(N - 1)
θ
1 + 360
×
(N + 1)
(*3)
"Movement judgement"
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Apprv. Desig.
Sheet
Title
Draw
No.
Date
Design
Description
Date
FANUC Series 16i –MB, 18i –MB/MB5
TILTED WORKING PLANE COMMAND
Specifications
Jul.01.2001
02 Mar.22.2002
T.Motida All revision H.Kouzai
Sheet
T.Mochida
H.Kouzai
03 Nov.15.2002
M.Tanaka
③
part changed H.Kouzai
04 Mar.25.2003
All revision