B--63003EN--1/02
1. AXIS CONTROL
80
A movement along an axis can be executed simply by executing a move
command specified for that axis or by synchronizing the movement with
anotheraxis. Either of these two types can be selected by means of a signal
sent from the machine.
In synchronous operation, that axis for which move commands can be
specified is called the master axis, while an axis along which the tool
moves in sync with the master axis is called a slave axis.
The M series and T series support different simple synchronization
control functions. One of the greatest differences is that:
<T series> The function can synchronize only automatic operations. It
cannot synchronize manual operations. Only one master/slave axis pair
can be used.
<M series> The function can synchronize both automatic and manual
operations.
The following functions are provided only for the M series:
D Synchronization error check function
D Synchronization compensation function
Any difference between the servo positional deviation of the master axis
and that of the slave axis is monitored constantly. A P/S alarm condition
(No. 213) is detected if a limit set in parameter No. 8313 (if only one
master/slave axis pair is in sync) or 8323 (if more than one master/slave
axis pair is in sync) is exceeded.
The function monitors the difference between the machine coordinates on
the master and slave axes. If the function detects a difference greater than
or equal to a preset value, it stops the machine. This function constantly
monitors the difference. Even if the synchronization control signal is
erroneously set to 0, thus disabling synchronization control, the function
can issue an alarm, stop the machine, and thus prevent damage.
If the detected difference is greater than or equal to the maximum error
set in parameter 8314, servo alarm 407 is output.
1.6
SIMPLE
SYNCHRONOUS
CONTROL
General
D Simple synchronous
control for the M series
and T series
D Synchronization error
check based on
positional deviation (M
series)
D Synchronization error
check based on machine
coordinates (M series)