
B-63323EN-1/03 1.AXIS CONTROL
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CAUTION
Automatic phase matching, specify the speed in
parameter No. 5984 and the movement direction in
parameter PHD, bit 1 of No. 7712.
In phase matching, rapid-traverse linear
acceleration/deceleration (with the time constant
specified in parameter No. 1620) is performed.
The workpiece-axis speed is obtained by
superposing the speed in automatic phase matching
onto the speed corresponding to spindle rotation.
In consideration of this superposition, specify a
position deviation limit in parameter No. 1828.
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. 5985, 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.
3 When a synchronization command is issued again in
a synchronization state, movement about the
workpiece axis is performed in automatic phase
matching such that the position corresponding to the
one-rotation signal of the spindle matches the
position about the workpiece axis specified in the
G81R2 synchronization start command executed
first.
4 In automatic phase matching, movement is
performed about the workpiece axis from the current
position to the nearest phase position in the phase
matching movement direction specified by the
parameter.
5 Linear acceleration/deceleration applies to
synchronization start/cancellation.