
1.AXIS CONTROL B-63783EN-1/01
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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.
6 The acceleration/deceleration plus automatic phase matching type
can be executed by the PHS parameter, bit 0 of No. 7712, without
specifying an R2 command in a G81 or G80 block.
7 In automatic synchronization cancellation due to the following
causes, deceleration is performed and synchronization is canceled.
(1) Reset
(2) PW000(POWER MUST BE OFF)
(3) IO Alarm