
B-63783EN-1/01 9.SPINDLE FUNCTION
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Caution
CAUTION
1 During the operations required for spindle positioning (operations for canceling
spindle rotation mode and entering spindle positioning mode, operations for
positioning the spindle in spindle positioning mode, and operations for canceling the
spindle positioning mode then entering spindle rotation mode), automatic operation
stop signal *SP is ignored. Even when the *SP signal is set to 0, automatic operation
is not halted until all the sequence is completed.
2 Dry run and machine lock are disabled during spindle positioning.
3 For M codes for the spindle positioning function, auxiliary function lock is disabled.
4 The spindle positioning axis is handled as one of the controlled axes. Therefore,
signals related to controlled axes (such as the overtravel signal) must be set.
5 When using an analog spindle, set the drift compensation parameters (parameter
Nos. 5962 to 5976) accurately. If the drift compensation value is not appropriate, the
following phenomena may occur during spindle orientation and spindle positioning:
- The spindle is stopped in the in-position wait state.
- The spindle position is shifted (the spindle does not reach a specified position or
passes a specified position).
6 For the spindle positioning axis, CMR = 1 and DMR = 4 are always set.
7 For the spindle positioning axis, set the following parameters as axis attributes:
1) The increment system is IS-B (0.001 deg).
Bit 0 (ISA) of parameter No. 1012 = 0
Bit 1 (ISC) of parameter No. 1012 = 0
Bit 2 (ISD) of parameter No. 1012 = 0
Bit 3 (ISE) of parameter No. 1012 = 0
2) The grid method is used for reference position return.
Bit 1 (ZMG) of parameter No. 1005 = 0
3) In automatic reference position return (G28), return to the reference position is
performed in positioning (rapid traverse) mode.
Bit 2 (ALZ) of parameter No. 1005 = 04
4) When manual reference position return is performed, the workpiece coordinate
system is always preset.
Bit 3 (PLZ) of parameter No. 1005 = 1
5) Axis not requiring inch/metric switching (rotation axis)
Bit 0 (ROT) of parameter No. 1006 = 1
6) The machine coordinate system for stroke check and automatic reference
position return is of the rotation axis type.
Bit 1 (ROS) of parameter No. 1006 = 1
7) The machine coordinate system for stored pitch error compensation is of the
rotation axis type.
Bit 2 (ROP) of parameter No. 1006 = 1
8) Travel distance on each axis is specified in radius specification mode.
Bit 3 (DIA) of parameter No. 1006 = 0
9) Command multiply = 1, Parameter No. 1820 = 2
10)The machine position on the indicator is indicated in degrees.
Bit 1 (MCN) of parameter No. 2203 = 1
11)The travel distance per rotation about the rotation axis is 360°.
Parameter No. 1260 = 360000