
B–63523EN–1/03
1. AXIS CONTROL
226
(2)A move command was issued to an axis under composite control
for which parameter MUMx (bit 7 of parameter No. 8162) is “1”.
⇒ No move command (either automatic or manual) can be issued
to an axis under composite control for which parameter MUMx
(bit 7 of parameter No. 8162) is “1”.
5. Servo alarm No. 407 occurs during synchronous control if:
(1)There is an excessive difference in the positional deviation between
the synchronous master and slave axes.
⇒ Alarm SV407 can occur only when a check is being made for
synchronous error. This alarm occurs typically when there is a
large difference in acceleration/deceleration constants or servo
parameters between the synchronous master and slave axes or
when the actual machine movement is incorrect for any reason
(such as incorrect synchronization).
6. The machine position deviates during synchronous control if:
(1)The acceleration/deceleration constants or servo parameters (such
as loop gain) do not match between the master and slave axes.
⇒ During synchronous control, acceleration/deceleration and
servo control are performed for master and slave axes
separately. (Instead, move commands are placed in
synchronization.) Acceleration/deceleration time constants or
servo characteristics may vary between the master and slave
axes. In such cases, the actual machine movement does not
match between axes.
7. The amount of movement is incorrect during synchronous, composite,
or superimposed control if:
(1)The diameter/radius specification or inch/metric input setting does
not match between the master and slave axes.
⇒ Synchronous, composite, superimposed control does not make
conversion on diameter/radius or inch/metric input
specifications between the master and slave axes. The least
command input must match between the master and slave axes.