Mitsubishi Electric MELDAS C6 Interface Manual page 159

B con-
Signal name
tact
—
Z-PHASE PASSED
[Function]
This signal is output from the spindle controller (spindle drive) for MELDAS AC spindle drive
high-speed serial connection specification, and informs that the encoder's Z phase has been
passed when changing the spindle from speed control to positioning control during C axis control.
[Operation]
The signal turns ON when:
(1) The Z phase is passed during C axis control.
The signal turns OFF when:
(1) The "Spindle servo-ON" signal turns OFF.
(2) The "Spindle ready-ON" signal turns OFF.
Spindle ready-ON
Spindle servo-ON
Z phase
Z-phase passed
(Note) This signal is valid only for a system having a control unit high-speed serially connected
with the spindle controller.
6. EXPLANATION OF INTERFACE SIGNALS
6.1 PLC Input Signals (Bit Type: X***)
Signal
abbreviation
SZPH
6-1-70
1st spindle 2nd spindle
X99D X9CD
3rd spindle
X9FD