
8.MULTI-PATH CONTROL B-63943EN-1/02
- 908 -
- D/S alarm
Number Message Description
DS1933 NEED REF RETURN(SYNC:MIX:OVL) The relation between a machine coordinate of an axis in
synchronization, composition, or superposition control, and the
absolute, or relative coordinate was displaced.
Perform the manual return to the reference position.
- Servo alarm
Number Message Description
SV0407 EXCESS ERROR The difference value of the amount of positional deviation for
the synchronization axis exceeded the setting value. (during
synchronization control only)
Caution
- Items common to synchronous control and composite control
CAUTION
1 At the start or end of synchronous or composite
control, the tool must be stopped on the axis subject
to that control.
2 If, during automatic operation, you want to start or
cancel synchronous or composite control, be sure to
perform waiting (with an M code without buffering)
before and after that.
3 The axes under synchronous or composite control
must match in least command increment, Detection
unit, and diameter/radius specification. Otherwise,
the amounts of travel will not be equal.
4 In synchronous or composite control, do not change
the parameters related to it (including axis control,
increment system, feedrate, and
acceleration/deceleration control).
5 Before starting synchronous or composite control,
make sure that the axes subject to it has undergone
a reference position return after the power was
turned on or that a reference position has been
established with an absolute pulse coder.
6 If an emergency stop or servo off is performed or if a
servo alarm occurs, the coordinates will change due
to synchronous or composite control. If this occurs,
"DS alarm 1933 NEED REF RETURN
(SYNC:MIX:OVL)" will be generated. After
canceling the emergency stop, canceling servo off,
or restoring from the servo alarm, perform a
reference position return and coordinate system
setting first, then start synchronous or composite
control.