
B–63523EN–1/03
1. AXIS CONTROL
225
2. The P/S225 alarm occurs when a signal for synchronous, composite,
or superimposed control is initiated if:
(1)An attempt was made to perform synchronous, composite, or
superimposed control for an axis that was already under
synchronous, composite, or superimposed control.
⇒ It is impossible to place an axis under more than one
combination of synchronous, composite, and/or superimposed
control simultaneously. However, a synchronous master axis
can be the master of more than one synchronous slave axis, and
other slave axes can be added under the same synchronous
control.
(2)The axis number specified in a parameter is greater than the number
of controllable axes.
⇒ The axis number of a synchronous master axis, an axis under
composite control, or the master axis under superimposed
control in one path must not be greater than the number of
controllable axes in the other path (or in the same path if
synchronous control is performed within one path).
(3)An axis to be placed in synchronization is already moving.
⇒ When synchronous, composite, or superimposed control
begins, the target axis must be at a stop. An axis being at a stop
means that the speed that is effective after
acceleration/deceleration is zero.
3. The P/S225 alarm occurs when synchronous, composite, or
superimposed control ends if:
(1)An axis to be released from synchronization is moving.
⇒ When synchronous, composite, or superimposed control ends,
the target axis must be at a stop. An axis being at a stop means
that the speed that is effective after acceleration/deceleration is
zero. When terminating synchronization, make sure that the
axis moving signal F0102/F1102 is “0”.
NOTE
Before the P/S225 alarm that occurs when synchronous,
composite, or superimposed control is terminated can be
reset, it is necessary to place the machine in an emergency
stop state.
4. The P/S226 alarm occurs during synchronous or composite control if:
(1)A move command was issued to a synchronous slave axis.
⇒ A move command (either automatic or manual) cannot be used
for a synchronous slave axis.