
1.AXIS CONTROL B-63943EN-1/02
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the acceleration according to the acceleration rate set in the
parameter (No.7778). Upon completion of phase
synchronization, the EGB mode signal SYNMOD becomes "1"
and the G81R2 block terminates.
3. For cancellation, specify G80R2 while the tool is moved away
from the workpiece.
4. When G80R2 is issued, the EGB mode signal becomes "0" and
deceleration is started immediately according to the acceleration
rate set in parameter No. 7778. When the speed reaches 0, the
G80R2 block terminates.
CAUTION
1 Set the automatic phase synchronization speed in
parameter No. 7776 and the movement direction in
PHD, bit 7 of parameter No. 7702.
2 Phase synchronization acceleration/deceleration is
performed with the rapid traverse linear
acceleration/deceleration rate (time constant
specified in parameter No. 1620).
3 The workpiece axis speed is the speed
synchronized with spindle rotation with automatic
phase synchronization speed being superposed.
When setting the position deviation limit parameter
(No. 1828), take the superposition into
consideration.
NOTE
1 The one-rotation signal used for automatic phase
synchronization is issued not by the spindle position
coder but by the separate pulse coder attached to
the spindle and used to collect EGB feedback
information. This means that the orientation
position based on the one-rotation signal issued by
the spindle position coder does not match the
position used as the reference for the workpiece
axis when establishing phase synchronization for
automatic phase synchronization based on G81R2.
Moreover, the one-rotation signal of the separate
pulse coder must be turned on for each rotation of
the spindle.
2 With the use of parameter No.7777, the position at
which the phase of the workpiece axis is matched
can be shifted from the position corresponding to
the one-rotation signal in automatic phase
matching.