
5.FUNCTION DESCRIPTIONS FANUC AC SPINDLE MOTOR αi series B-65280EN/05
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Synchronous orientation stop position
SHA11 to SHA00 are used to specify the spindle stop position for
synchronous orientation. Specify the desired shift amount relative
from the reference position explained above.
NOTE
1 Be sure to specify the same reference position for
both the spindles. If you fail to specify the same
spindle position, it is impossible to maintain spindle
synchronization.
2 Also specify the direction in which each spindle
rotates during synchronous orientation, using
ROTAA. The direction in which each spindle must
rotate to keep itself in synchronization with the
other spindle varies depending on the machine
configuration. Be sure to specify the correct
direction according to the machine condition so that
the spindles are maintained in synchronization. If
you fail to specify the correct direction, it is
impossible to maintain spindle synchronization.
3 Keep these signals (SHA11 to SHA00 and ROTAA)
in the stated status until synchronous orientation is
completed.