Mitsubishi Electric M80V Series Manual page 521

M800V/M80V Series PLC Interface Manual
4 Explanation of Interface Signals
4.3 PLC Output Signals (Bit Type: Y***)
<Tool spindle synchronization I A (Spindle-Spindle, Polygon) command>
Turning ON the "Spindle rotation reversal" signal (SPRR: Y18AA) reverses the rotation direction of the workpiece spindle
motor and the rotary tool spindle motor at the tool spindle synchronization I B command. When the "Spindle rotation
reversal" signal for the workpiece spindle is ON, the workpiece spindle motor rotates in the opposite direction to the
spindle rotation signal (the "Spindle forward run start" signal (SRN: Y1898) or the "Spindle reverse run start" signal (SRI:
Y1899)). At this time, the synchronized rotation direction of the rotary tool spindle motor remains the same as when the
"Spindle rotation reversal" signal for the workpiece spindle is OFF. When the "Spindle rotation reversal" signal for the
rotary tool spindle is ON, the synchronized rotation direction of the rotary tool spindle motor is reversed.
<Motion example>
Listed below are the state of the "spindle rotation reversal" signal and the rotation direction of the workpiece and rotary
tool spindle motors when you execute a tool spindle synchronization control I B command that rotates the workpiece and
rotary tool spindles in the same direction while the forward run command is ON for the workpiece spindle.
Workpiece spindle
Spindle rotation re-
Rotation signal versal (SPRR:
Spindle forward run
start
(SRN: Y1898)
Spindle reverse run
start
(SRI: Y1899)
Note
(1) Turn ON the "Spindle rotation reversal" signal for the workpiece spindle and rotary tool spindle before the tool spindle
synchronization control I B command is issued. Even though the "Spindle rotation reversal" signal is switched from
ON to OFF or from OFF to ON while the tool spindle synchronization IB is being executed, the direction of the spindle
motor rotation does not change.
IB-1501616-D
Motor rotation direc-
tion
Y18AA)
Invalid Forward rotation
Valid Reverse rotation
Invalid Reverse rotation
Valid Forward rotation
Synchronized spindle
Spindle rotation re-
Motor synchronous
versal (SPRR:
rotation direction
Y18AA)
Invalid Forward rotation
Valid Reverse rotation
Invalid Forward rotation
Valid Reverse rotation
Invalid Reverse rotation
Valid Forward rotation
Invalid Reverse rotation
Valid Forward rotation
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