Precautions And Restrictions - Mitsubishi Electric M800VW Series Programming Manual

M800V/M80V Series PLC Programming Manual (2/2)
13 Spindle Control
13.11 Spindle Synchronization Control ll

13.11.3 Precautions and Restrictions

(1) When carrying out spindle synchronization, a rotation command must be issued to both the reference spindle and syn-
chronized spindle. The synchronized spindle's rotation direction will follow the reference spindle rotation direction and
spindle synchronization rotation direction designation regardless of whether a forward or reverse run command is issued.
(2) The spindle synchronization control mode will be entered even if the spindle synchronization control signal is turned ON
while the spindle rotation speed command is ON. However, synchronous control will not actually take place. Synchronous
control will start after the rotation speed command has been issued to the reference spindle, and then the spindle syn-
chronization complete signal will be output.
(3) The spindle rotating with spindle synchronization will stop when emergency stop is applied.
(4) An operation error will occur if the spindle synchronization signal is turned ON while the reference spindle and synchro-
nized spindle designations are illegal.
(5) When the spindle speed is clamped with the maximum rotation speed clamp or with the maximum clamp speed specified
by the address S in G92 during spindle synchronization, the clamp value of the reference or synchronized spindle, which-
ever is smaller, is applied.
(6) Orientation of the synchronized spindle is not possible during the spindle synchronization. To carry out orientation, turn
the spindle synchronization signal OFF first.
(7) The rotation speed command is invalid for the synchronized spindle during the spindle synchronization. The commanded
rotation speed will be validated after spindle synchronization is canceled.
(8) The constant surface speed control is invalid for the synchronized spindle during the spindle synchronization.
(9) If the phase offset request signal is turned ON before the phase shift is calculated and then spindle phase synchroniza-
tion is executed, the shift amount will not be calculated.
(10) The spindle Z-phase encoder position parameters are invalid when phase offset is carried out.
(11) If spindle phase synchronization is started while the phase shift calculation request signal is ON, the operation error (M01
1106) will occur.
(12) Turn the phase shift calculation request signal ON when the reference spindle and synchronized spindle are both
stopped. If the phase shift calculation request signal is ON while either of the spindles is rotating, the operation error (M01
1106) will occur.
(13) The phase shift amount saved in the NC is held until the next phase shift is calculated. (This value is saved even when
the power is turned OFF.)
(14) Always set the "Chuck close". If the "Chuck close" is not set, an excessive load may be applied on the machine or an
alarm may occur.
(15) The synchronous tap spindle cannot be designated as the reference or synchronized spindle of the spindle synchroniza-
tion II.
(The operation error (M01 1007) will occur, which causes automatic operation to pause.)
You cannot command a synchronous tapping that uses the reference spindle or synchronized spindle of spindle synchro-
nization II, either.
(The operation error (M01 1139) will occur, which causes automatic operation to pause.)
(16) Spindle-mode rotary axis cannot be designated as reference spindle or synchronized spindle of spindle synchronization
II. (The operation error (M01 1024) will occur, which causes automatic operation to pause.)
537 IB-1501668-B