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Mitsubishi Electric MELDAS C6 Interface Manual Page 95

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B con-
Signal name
tact
SPINDLE PHASE
SYNCHRONIZATION
COMPLETE
[Function]
This signal informs that the spindle synchronization state is entered.
[Operation]
The signal turns ON when:
• The phase alignment of the basic spindle and synchronous spindle is completed during the
phase synchronization mode.
The signal turns OFF when:
• The phase difference of the basic spindle and synchronous spindle exceeds the value set for the
spindle synchronization phase attainment level during the phase synchronization mode.
• The spindle synchronous control mode is canceled.
CAUTION
Always turn the spindle phase synchronization complete signal ON before chucking both ends of
the workpiece to the basic spindle and synchronous spindle. If the spindle phase synchronization
signal is turned ON when both ends of the workpiece are chucked to the basic spindle and
synchronous spindle, the chuck or workpiece could be damaged by the torsion that occurs during
phase alignment.
Spindle synchronous control
(Y432)
In spindle synchronous control
(X42A)
Spindle rotation speed
synchronization complete
(X42B)
Spindle phase synchronous
control (Y433)
Spindle phase synchronization
complete (X42C)
(Note1) Temporary OFF to change the rotation speed during the phase synchronization.
[Related signals]
In spindle synchronous control (SPSYN1: X42A)
Spindle rotation speed synchronization complete (FSPRV: X42B)
Spindle synchronous control (SPSY: Y432)
Spindle phase synchronous control (SPPHS: Y433)
6. EXPLANATION OF INTERFACE SIGNALS
6.1 PLC Input Signals (Bit Type: X***)
Signal
abbreviation
FSPPH
Spindle phase synchronous
control ON
Spindle rotation speed synchronization
complete ON
Spindle synchronous control ON
6-1-6
1st system
X42C
(Note1)
Spindle phase synchronization
complete ON
2nd system
3rd system
Spindle phase synchronous
control OFF
Spindle synchronous control OFF

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