
B–63523EN–1/03
1. AXIS CONTROL
309
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.
3 In automatic phase synchronization, when a
synchronization command is issued again in a
synchronization state, movement about the workpiece axis
is performed 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 synchronization, movement is performed
about the workpiece axis from the current position to the
nearest phase position in the phase synchronization
movement direction specified by the parameter.
5 Linear acceleration/deceleration applies to synchronization
start/cancellation.
6 The acceleration/deceleration plus automatic phase
synchronization type can be executed by the PHS
parameter, bit 6 of No.7702, without specifying an R2
command in a G81 or G80 block.
7 In automatic synchronization cancellation due to Reset or
P/S alarm (No.000), deceleration is executed and
synchronization is canceled.
8 This item is for spindle EGB.
If the control mode of the master axis is the speed control,
it is necessary to execute the position coder orientation
before that the automatic phase synchronization is started.
In this case, RFCHK3 (PRM4016#7) of the master axis must
be set ”0” to keep memorizing the one–rotation signal
position of the spindle in the speed control mode.
9 This item is for spindle EGB.
If the control mode of the master axis is Cs contouring, it is
necessary to execute the reference point return before that
the automatic phase synchronization is started.
10 The acceleration rate parameter (No.2135, 2136 or No.4384,
4385) must not be changed in the synchronization mode.
11 Do not cancel the synchronous mode by the reset when this
function is used. (Set ”1” in patameter No.7700#0 HBR.)