Mitsubishi Electric M800VW Series Programming Manual page 565

M800V/M80V Series PLC Programming Manual (2/2)
13 Spindle Control
13.12 Guide Bushing Spindle Synchronization
Precautions
(1) If the alarms cannot be avoided even though the "G/B spindle synchronization: position error compensation" (GBCMON)
signal is ON, increase the number of times of compensations.
Note that the larger the number of times of compensations is, the longer the measurement time for the position error com-
pensation becomes. In such a case, decrease the number of times of compensations by setting the scale applied to the
first compensation. (R390 | Compensation scale applied to the first compensation | The number of times of compensa-
tions | )
(2) The In G/B spindle synchronization position error compensation signal turns OFF:
 When both "G/B spindle synchronization: keep position error compensation amount signal" (GBCMKP) signal and "G/B
spindle synchronization: position error compensation" (GBCMON) signal are turned OFF
 When the G/B spindle synchronization mode is canceled
 During measuring the G/B spindle synchronization position error compensation amount.
(3) Even if the "G/B spindle synchronization: position error compensation" (GBCMON) signal is turned OFF during measur-
ing the G/B spindle synchronization position error compensation amount, the signal is not actually turned OFF until the
measurement is completed.
(4) The G/B spindle synchronization position error compensation is executed only during the G/B spindle synchronization
mode. If the "G/B spindle synchronization: position error compensation" (GBCMON) signal is turned ON not during the G/
B spindle synchronization mode, the compensation starts when the G/B spindle synchronization mode starts.
IB-1501668-B 544