
B-63950EN/02 4.DESCRIPTION OF PARAMETERS
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NOTE
When this parameter is set to 0 or a value outside
the valid setting range, the Z-axis is used as the
axial feed axis.
When there are two or more Z-axes in parallel, use
this parameter to specify the axis to be used as the
axial feed axis.
7710
Axis number of an axis to be synchronized using the method of command
specification for a hobbing machine
[Input type] Parameter input
[Data type] 2-word path
[Valid data range] 0 to Number of controlled axes
When there are several groups of axes to be synchronized (the axes for
which bit 0 (SYNMOD) of parameter No. 2011 is set to 1), an axis for
which to start synchronization is specified using the following
command (for a hobbing machine):
G81 T t
L ± l ;
t: Spindle speed (1 ≤ t ≤ 1000)
l: Number of synchronized axis rotations (1 ≤ l ≤ 21)
Synchronization between the spindle and a specified axis is
established with the ratio of ±l rotations about the synchronized axis
to t spindle rotations.
t and l correspond to the number of teeth and the number of threads on
the hobbing machine, respectively.
When there are several groups of axes to be synchronized and the
above command is issued without setting this parameter, the alarm
(PS1593) is issued.
When only one group of axes is to be synchronized, this parameter is
ignored.
7717 Synchronization cancellation delay time for an EGB axis
[Input type] Parameter input
[Data type] Word axis
[Unit of data] 0.1sec
[Valid data range] 0 to 32767 (0 to 3276.7sec)
If a servo alarm is issued during EGB synchronization, the tool may
be retracted due to the servo alarm. At this time, when the tool has
been retracted along the specified axes and the time set in this
parameter has elapsed after the servo alarm is issued, EGB axis
synchronization is canceled.
This parameter is also valid when a servo alarm is issued for an axis
along which to retract the tool.
When this parameter is set, the output of the retract completion signal
RTRCTF is also delayed.