
B-63943EN-1/02 11.SPINDLE SPEED FUNCTION
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With a move command for positioning of a Cs contouring control axis
or spindle in the parking state, only the movement of the spindle in the
parking state is stopped by updating the coordinate system.
Reference position return operation for a Cs contouring control axis
and spindle orientation operation for spindle positioning are disabled
for a spindle placed in the parking state.
If reference position return operation in the Cs contouring control
mode or spindle orientation in the spindle positioning mode is
specified with one spindle placed in the parking state, the reference
position return completion signal is turned on when the spindle not
placed in the parking state has completed a reference position return
operation.
The parking function stops the movement of only a spindle that is
placed in the parking state. So, the parking function can be used, for
example, to continue machining by stopping one spindle no longer
required or to perform Cs contouring control, rigid tapping, and
spindle positioning with the slave spindle by placing the master
spindle in the parking state.
NOTE
1 In the simple spindle synchronous control mode,
the two spindles are checked for a position error at
all times, regardless of the parking state. The
excessive error alarm is issued when a spindle has
moved due to a load from the position where the
spindle was stopped by the parking function.
2 The parking function stops the movement of only a
spindle that is placed in the parking state. So, if
parking is applied to a spindle after a reference
position return operation or spindle orientation
operation is once performed, the spindle position is
shifted from the machine coordinates. Until another
reference position return operation or spindle
orientation operation is performed after parking is
canceled, the relationship between the spindle
position and machine coordinates is not
guaranteed.
3 The parking signal becomes immediately valid in
the simple spindle synchronous control mode.
However, even if the parking signal is input during
reference position return operation in the Cs
contouring control mode or during spindle
orientation operation in the spindle positioning
mode, the reference position return operation or
spindle orientation operation continues until it is
completed. Parking starts immediately after
completion of such an operation.