Mitsubishi Electric M800VW Series Programming Manual page 556

M800V/M80V Series PLC Programming Manual (2/2)
13 Spindle Control
13.11 Spindle Synchronization Control ll
 Phase error monitor
The phase error can be monitored during spindle phase synchronization.
Device No. Signal name
R6519 Phase error monitor
Phase error monitor (lower
R6520
limit value)
Phase error monitor(upper
R6521
limit value)
 Chuck close signal
The synchronized spindle side carries out droop compensation while the chuck is opened, and aligns itself with the reference
spindle. However, when the chuck is closed, the droop compensation is added, and the synchronization error with the base
increases. Droop compensation is prevented with the chuck close signal and the position where the chuck is grasped is
maintained with position compensation.
Device No. Signal name
Y18B9 Chuck close
X18AC Chuck close confirmation -
Reference spindle chuck
Synchronized spindle chuck
Spindle synchronization
signal (Y18B0)
In spindle synchronization
signal (X18A8)
Spindle synchronization
complete signal (X18A9)
Chuck close (Y18B9)
Error temporary cancel
(Y18B5)
Note
(1) Use the error temporary cancel only when there is still an error between the spindle and synchronization with the chuck
close signal.
 Error temporary cancel function
When spindle synchronization is carried out while grasping the workpiece with the reference spindle and rotating, if the chuck
is closed to grasp the workpiece with the synchronized spindle, the speed will fluctuate due to external factors and an error
will occur. If spindle synchronization is continued without compensating this error, the workpiece will twist.
This torsion can be prevented by temporarily canceling this error.
Device No. Signal name
Y18B5 Error temporary cancel
Abbrev.
The phase error during spindle phase synchronization control is
-
output as a pulse unit.
The lower limit value of the phase error during spindle phase syn-
-
chronization control is output as a pulse unit.
The upper limit value of the phase error during spindle phase syn-
-
chronization control is output as a pulse unit.
Abbrev.
This turns ON when the chuck is closed. When this signal turns
ON, the compensation between the reference spindle and syn-
-
chronized spindle will change from droop compensation to posi-
tion compensation.
This turns ON when the chuck close signal is received during the
spindle synchronization mode.
Chuck close
Chuck close
Chuck open
confirmation
Error canceled
Abbrev.
SPDRP0 The error is canceled when this signal is ON.
Explanation
Explanation
Chuck open
Chuck close Chuck open
n
confirmatio
Chuck close Chuck open
Explanation
535 IB-1501668-B