Rockwell Automation 8520-ARM2 9/Series CNC AMP Reference Manual Documentation Set - Manual (Page 123)

Home Parameters
Chapter 5
5-21
Function
This parameter determines the coordinate value to be assigned to a third
home position for the axis.
The G30 P3 third home command provides an alternative home position,
often necessary if special attachments or different tool changer are to be
used. Refer to programming and operation manual for more information.
The third home position for an axis can have any legal coordinate value;
positive, negative, or zero.
Axis Parameter
Number
Axis Parameter
Number
(1) [1304] (7) [7304]
(2) [2304] (8) [8304]
(3) [3304] (9) [9304]
(4) [4304] (10) [10304]
(5) [5304] (11) [11304]
(6) [6304] (12) [12304]
Range
--2540000.00000 to 2540000.00000 mm
or
--100000.00000 to 100000.00000 in.
Notes
The axis moves to the position indicated by the coordinate value entered
here whenever a G30 P3 is executed. If the value entered here is identical
to the valued entered for the AMP parameter Axis Position after Homing,
then the G30 P3 functions as if a G28 were programmed after homing.
This parameter must be set independently for each axis.
5.2.4
G30 3rd Home Position