
5.FUNCTION DESCRIPTIONS FANUC AC SPINDLE MOTOR αi series B-65280EN/05
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(2) Details of input signals (PMC → CNC)
(a) Spindle synchronous control command (SPSYC)
Setting the SPSYC signal to "1" directs the spindles to enter the
spindle synchronous control mode. Before issuing this command,
specify SORSLA (SORSLA) = "0".
Maintain the condition of SPSYC = "1" during synchronous
orientation.
(b) Spindle phase synchronous control command or synchronous orientation
command (SPPHS)
If SORENA (SORENB) = "0", the spindle phase synchronous control
command is issued at the rising edge of the SPPHS signal. (See
Section I-2.5, "SPINDLE SYNCHRONIZATION CONTROL," FOR
PHASE SYNCHRONOUS CONTROL.")
If SORENA (SORENB) = "1", the synchronous orientation command
is issued at the rising edge of the SPPHS signal. When the
synchronous orientation command is issued, the synchronous speed
command becomes disabled, and synchronous orientation begins.
Keep satisfying synchronous speed command = "0" during
synchronous orientation.
Before issuing the synchronous orientation command, make sure that
SORSLA (SORSLB) = "1" and SORENA (SORENB) = "1" are
satisfied for both the spindles.
Keep in mind that the meaning of the SPPHS signal changes
according to the state of the SORENA (SORENB) signal.
To issue the synchronous orientation command after spindle phase
synchronous control is performed, it is necessary to reset the SPPHS
signal to "0" previously. The spindle phase synchronous control
completion signal is kept at "0" while the SPPHS signal is "0".
(c) Synchronous orientation request command (SORSLA)
The SORSLA signal is a signal for requiring synchronous orientation.
In response to this signal, the spindle amplifier outputs a synchronous
orientation permission signal (SORENA or SORENB).
If SORSLA (SORSLB) = "1" is input, the synchronous orientation
command (SPPHS) becomes enabled when SORENA (SORENB) =
"1" is satisfied.
Keep the current state of the SORSLA signal until synchronous
orientation is completed.
If SORSLA (SORSLB) = "0" is input, synchronous orientation is
released and the synchronous speed command becomes enabled, when
SORENA (SORENB) = "0" is satisfied.