
B-63783EN-1/01 10.TOOL FUNCTION
- 1047 -
(5) Input from external equipment
When the read soft key is selected on the fixture offset screen,
data can be input from external equipment such as a Floppy
Cassette via the RS-232C interface.
Data is input in G10 format without a program number.
NOTE
This operation requires the use of a reader/punch
interface and a programmable data input function.
- Calculating a fixture offset
(1) Relationship between rotation axes and linear axes
First group: 4 (B-axis), 3 (Z-axis), 1 (X-axis)
Second group: 5 (C-axis), 1 (X-axis), 2 (Y-axis)
Third group: 0, 0, 0
(2) Reference angle and reference fixture offset
X:F
0X
Y:F
0Y
Z:F
0Z
B:θ
0
C:φ
0
When the above values are specified for the following:
O : Center of rotary table
W : Workpiece origin offset
F
0
: Fixture offset when B equals θ
0
and C equals φ
0
F
A
: Fixture offset (F
AX
, F
AY
, F
AZ
) when B equals 0 and C
equals 0
F : Fixture offset (F
X
, F
Y
, F
Z
) when B equals θ and C equals
the fixture offset is calculated as shown below: φ
() ()
() ()
() ()
() ()
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û
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ê
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ê
ë
é
ú
ú
ú
û
ù
ê
ê
ê
ë
é
−−
−−−
ú
ú
ú
û
ù
ê
ê
ê
ë
é
−−−
−−
=
ú
ú
ú
û
ù
ê
ê
ê
ë
é
Z
Y
X
AZ
AY
AX
F
F
F
F
F
F
0
0
0
00
00
00
00
100
0cossin
0sincos
cos0sin
010
sin0cos
φφ
φφ
θθ
θθ
() ()
() ()
() ()
() ()
ú
ú
ú
û
ù
ê
ê
ê
ë
é
ú
ú
ú
û
ù
ê
ê
ê
ë
é
−
ú
ú
ú
û
ù
ê
ê
ê
ë
é
−
=
ú
ú
ú
û
ù
ê
ê
ê
ë
é
AZ
AY
AX
Z
Y
X
F
F
F
F
F
F
θθ
θθ
φφ
φφ
cos0sin
010
sin0cos
100
0cossin
0sincos
Limitation
- If data is changed in G54.2 mode
If a parameter setting or reference fixture offset is changed in G54.2
mode, the new data is valid from the next block to be buffered.
- Movement resulting from a change in the vector of the fixture offset
The movement resulting from a change in the vector of the fixture
offset is made according to the current modal G code of group 01. If
the G code is not G00 or G01 (if the code is G02, G03, etc.), the
movement is temporarily made according to G01.