
8.MULTI-PATH CONTROL B-63943EN-1/02
- 910 -
- Items related to synchronous control only
CAUTION
1 In synchronous control, you cannot issue a move
command for the synchronous axis on the
synchronous slave.
2 The axes under synchronous control must match in
acceleration/deceleration time constant and servo
parameters, insofar as possible. If their settings
greatly differ, the actual machine movement will
deviate.
3 Even if you perform operations that do not move the
machine but change the workpiece coordinate
system only, such as workpiece coordinate system
setting/shifting and geometric offset commands, on
the synchronous master, this will not be reflected in
the workpiece coordinate system on the slave.
4 If you perform workpiece coordinate system
setting/wear offset commands, tool nose radius
compensation, or cutter compensation on the
synchronous master, the travel path on the
synchronous slave will shift by the offset, but the
offset will not be set as an offset amount. (No
offset vector will be created.)
- Items related to composite control only
CAUTION
1 If you want to place a tapping axis under composite
control, place it under composite control first, then
issue a rigid tapping command. In rigid tapping
mode, you must not switch the composite control
axis selection signal; be sure to do this in the rigid
tapping canceled state.
2 If you place a tapping axis under composite control,
rigid tapping will be performed using the time
constant, loop gain, in-position width, and the
positional deviation limits during stoppage/travel of
the interchanging axis in composite control.
3 In composite control, the loop gain may be switched
depending on the switching of the Cs contour control
switching signal and of the composite control axis
selection signal. For this reason, switch the signals
in the state in which the tool has stopped on the
related axis. If you change the loop gain while the
tool is moving along an axis, shock may result.