
6. INTERPOLATION FUNCTION
B–63523EN–1/03
732
7640
Master axis in spindle–spindle polygon turning
7641
Polygon synchronous axis in spindle–spindle polygon turning
[Data type] Byte
[Valid data range] 0, 1 to Number of spindles, or m × 10 + n (m:1 to Number of paths, n:1
to Number of spindles)
These parameters set the master and polygon synchronous (slave) axes in
spindle–spindle polygon turning.
Settings 1 to 4: First to fourth serial spindles of the local path
11 to 14: First to fourth serial spindles of path 1
21 to 24: First to fourth serial spindles of path 2
31 to 32: First to second serial spindles of path 3
NOTE
1 Spindle–spindle polygon turning option is enabled only for
serial spindles.
2 When any one of parameter No. 7640 and No. 7641 is set
to 0, polygon turning is performed using the first spindle
(master axis) and the second spindle (polygon synchronous
axis) in the path to which the parameter belongs.
3 To select a spindle of a different path (parameter setting = 11
and up, 21 and up, 32 and up), the system software B1F2
series (FS16i)/BEF2 series (FS18i) is required.
4 When one of the second to fourth serial spindles is used as
a master axis, and the S command is to be used for the
master axis, the multi–spindle control option is required.
5 When the PMC window function or G10 command is used
to rewrite this parameter, rewrite this parameter before the
block specifying the spindle–spindle polygon command
G51.2 (G251). When the PMC window function is used to
rewrite this parameter in the block immediately before G51.2
(G251), specify the rewriting of this parameter by using an
M code (parameter No. 3411 and up) without buffering.