
B–63523EN–1/03
9. SPINDLE SPEED FUNCTION
1227
In simple spindle synchronous control mode, the parking function stops
the motion of the first or second spindle, regardless of the mode (spindle
mode, spindle positioning mode, Cs contour axis control mode, or rigid
tapping mode) of the spindle.
In the parking state, the spindle is placed in the following state, depending
on its mode:
In spindle mode: Same state as when S0 is specified
In other modes: Zero distribution state
Spindle orientation in spindle positioning mode and reference position
return in Cs contour axis control mode are also disabled for a spindle that
has been placed in the parking state.
The parking function stops only spindle motion. So, the parking function
can be used to stop only one spindle to enable machining to continue on
the other spindle when both spindles are being controlled. The parking
function can also be used to place the first spindle in the parking state so
that Cs contour axis control, spindle positioning, or rigid tapping can be
performed only on the second spindle.
WARNING
When using parking signal PK7 or PK8 for spindle
synchronous control (T series) while both simple spindle
synchronous control and spindle synchronous control (T
series) are being used, set the SPK bit (bit 7 of parameter
No. 4800) to 1. This sets parking signals PKESS1 and
PKESS2, used for simple spindle synchronous control, to
#6 and #7 of G031.
CAUTION
1 If the parking function is activated in a mode featuring a
position loop, such as Cs contour axis control mode, spindle
positioning mode, and rigid tapping mode, the actual
machine position of the spindle placed in the parking state
will differ from the coordinates recognized by the CNC.
This error is caused by parking, so that an excess error
alarm is not issued.
2 The parking signal becomes active immediately upon
simple spindle synchronous control mode being set.
However, if the parking signal is applied during reference
position return in Cs contour axis control mode or during
spindle orientation in spindle positioning mode, reference
position return or spindle orientation continues until the
completion of the operation; the parking state is set once the
reference position has been established.
3 While both spindles are placed in the parking state, never
specify reference position return in Cs contour axis control
mode, or spindle orientation in spindle positioning mode.
When both spindles are in the parking state, reference
position is not established.
D Parking function