
11.PROGRAM COMMAND B-63323EN-1/03
- 1140 -
B axis manual feed selection signal +J
α
B axis position control servo ON
B axis unclamp signal BUCLP
B axis unclamp completion signal *BEUCL
B axis rotation
B axis deceleration signal *DEC
α
B axis return completion signal ZP
α
B axis clamp signal BCLP
B axis clamp completion signal *BECLP
Fig. 11.8 (c) Manual reference position return of B axis time chart (type A)
- Type A and Type B
As described in the basic procedure, type A differs from type B in that
the servo used for B-axis position control is turned on or off at the
different timing.
Type A is suitable for a system in which the B-axis is clamped with
shot pins.
Type B is suitable for a system in which the B-axis is clamped with a
clutch.
- Indexing axis setting
Set a rotation axis as an index table indexing axis. That is, set the
following:
Bit 0 (ROT) of parameter No. 1006 = 1
Bit 1 (ROS) of parameter No. 1006 = 1
Bit 2 (ROP) of parameter No. 1006 = 1
Disable the servo-off signal for an index table indexing axis. That is,
set the following:
Bit 1 (SVF) of parameter No. 1802 = 0
Usually, the servo-off state is set for an index table indexing axis.
- Absolute/incremental programming
One of the following indexing positions is used, depending on bit 3
(G90) of parameter No. 7602:
0: Value according to an absolute/incremental G code (G90/G91)
1: Absolute value at all times
An indexing position assumes a positive value for the counterclockwise
direction, and a negative value for the clockwise direction.