
B-63943EN-1/02 1.AXIS CONTROL
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- Synchronization error check based on machine coordinates
When synchronization error compensation is not performed, a
synchronization error check based on machine coordinates is made.
The machine coordinate on the master axis is compared with that on
the slave axis. When the error between the machine coordinates
exceeds the value set in parameter No. 8314, the SV0005 alarm is
issued, and the motor is stopped immediately.
This synchronization error check can also be made in the emergency
stop, servo-off, and servo alarm off state.
If a synchronization error check is made when the mode of operation
is switched between synchronous operation and normal operation with
an input signal, an error check is made even in normal operation. So,
even if the feed axis synchronization control selection signal (SYNCx)
or the feed axis synchronization control manual feed selection signal
(SYNCJx) is set to 0 by mistake during synchronous operation,
damage to the machine can be prevented.
The machine coordinates on the master axis and slave axis can be
checked using the machine coordinate match state output signal
SYNMT (F0210).
- Synchronization error check based on a positional deviation value
The servo positional deviation value of the master axis and slave axis
is monitored during feed axis synchronization control. When the
positional deviation value exceeds the limit value set in parameter No.
8323, the DS0001 alarm is issued, and the feed axis synchronization
control positional deviation error alarm signal (F403.0) is output.
The DS0001 alarm is issued to the master axis and slave axis.
When bit 4 (SYA) of parameter No. 8301 is set to 1, the positional
deviation limit value of the master axis and slave axis is checked even
if a servo-off occurs during feed axis synchronization control.