
B-63783EN-1/01 9.SPINDLE FUNCTION
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9.9 SPINDLE ORIENTATION
General
This function stops the spindle at a specified position. The spindle can
be stopped in either of the following two ways.
- The spindle is mechanically stopped by using stoppers.
- The spindle is stopped by applying a function of the spindle
control unit.
Mechanical stop
To mechanically stop the spindle by using, for example, a stopper,
rotate the spindle at a constant low speed and drive a stopper or pin into
the spindle.
The spindle can be rotated at a constant speed by applying either of the
following methods.
Using the spindle control unit
Some spindle control units can position the spindle motor by using
sensors and position coders. The CNC itself does not control
positioning by using these units.
Serial spindle orientation by a position coder
In serial spindle orientation by a position coder, the stop position is
specified either by a parameter or by the PMC (spindle orientation
function with the stop position externally set).
Signal
Serial spindle orientation stop position command signal
SH0A-SH11A<G230,G231>:For 1st spindle
SH0B-SH11B<G238,G239>:For 2nd spindle
SH0C-SH11C<G214,G215>:For 3rd spindle
SH0D-SH11D<G222,G223>:For 4th spindle
[Classification] Input signal
[Function] This signal sets a stop position when the spindle orientation function
with an externally set stop position is used. This signal specifies an
absolute position in one rotation. This signal consists of 12 binary code
signals. The stop position and signal have the following relationship:
{}
å
=
××=
11
0i
i
4096
360
2 (degree)position Stop sSH
i