
4.DESCRIPTION OF PARAMETERS B-63950EN/02
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7642
Master axis in spindle-spindle polygon turning (spindle number common to
the system)
[Input type] Parameter input
[Data type] Byte path
[Valid data range] 0 to Maximum number of controlled axes (Common to the system)
This parameter sets the master axis in spindle-spindle polygon turning.
NOTE
1 Spindle-spindle polygon turning is enabled only for
serial spindles.
2 This parameter is invalid if either parameter No.
7642 or No.7643 is set to 0. In this case, the
settings of parameter No. 7640 and No.7641 are
valid.
3 When a spindle other than the first serial spindle is
used as a master axis, the multi-spindle control
option is required to specify an S command for the
master axis.
4 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. When
the PMC window function is used to rewrite this
parameter in the block immediately before G51.2,
specify the rewriting of this parameter by using an
M code (parameter No. 3411 and up) without
buffering.
5 A spindle number common to the system is to be
set in this parameter. When using this parameter,
set 0 in parameter No. 7640 and No. 7641.