
7.AUXILIARY FUNCTION / SPINDLE SPEED FUNCTION NC FUNCTION B-63942EN/02
- 272 -
7.11 ACTUAL SPINDLE SPEED OUTPUT
Actual spindle speed calculated by the return signal of the position
coder on the spindle is output in 16-bit binary code.
7.12 SPINDLE ORIENTATION
You can perform spindle orientation simply by mounting a position
coder on the spindle. Stoppers or pins for physically stopping the
spindle at a specified position are not necessary. A spindle can be
instantly oriented, even when rotating at high-speed, thereby greatly
reducing the orientation time.
When a spindle other than the first spindle in each path is oriented,
spindle orientation expansion is used.
Spindle orientation can be performed for a spindle with a spindle
number up to the maximum number of controlled spindles.
7.13 SPINDLE OUTPUT SWITCHING FUNCTION
Spindle output switching switches between the two windings, one for
low speed and the other for high speed, incorporated into the special
spindle motors. This ensures that the spindle motor demonstrates
stable output characteristics over a wide range.
When spindle output switching is performed for a spindle other than
the first spindle in each path, spindle output switching expansion is
used.
Spindle output switching can be performed for a spindle with a
spindle number up to the maximum number of controlled spindles.
7.14 SPINDLE SYNCHRONOUS CONTROL
In a machine having two or more spindles (such as a multi-path lathe),
this function controls more than one spindle synchronously.
When a workpiece is switched between two spindles during spindle
rotation, or when the spindle speeds of two spindles are accelerated or
decelerated while the spindles are holding a workpiece, the spindles
can be rotated at the same speed. (Spindle speed synchronization)
When a non-standard workpiece is switched, the rotations of the two
spindles can be made in phase with each other (matching of angular
displacement). (Phase synchronization)