Mitsubishi Electric M80V Series Manual page 519

M800V/M80V Series PLC Interface Manual
4 Explanation of Interface Signals
4.3 PLC Output Signals (Bit Type: Y***)
<Spindle synchronization control command>
Turning ON the "Spindle rotation reversal" signal (SPRR: Y18AA) reverses the rotation direction of the reference spindle
motor and the synchronized spindle motor at the spindle synchronization control command. When the "Spindle rotation
reversal" signal for the reference spindle is ON, the reference 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)).
However, the synchronized spindle motor remains in the same rotation direction as when the "Spindle rotation reversal"
signal is OFF for the reference spindle. When the "Spindle rotation reversal" signal is ON for the synchronized spindle, the
rotation direction of the synchronized spindle motor is reversed.
<Motion example>
Listed below are the state of the "Spindle rotation reversal" signal and the rotation direction of the reference and
synchronized spindle motors when you execute a spindle synchronous control command that rotates the reference and
synchronized spindles in the same direction while the forward run command is issued for the reference spindle.
Reference 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 reference spindle and the synchronized spindle before the spin-
dle synchronization control command is issued.
Even though the "Spindle rotation reversal" signal is switched from ON to OFF or from ON to OFF during the spindle
synchronization, 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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