Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 109)

Manual/MDI Operation Modes
Chapter 4
4-9
Figure 4.3
Machine Home
Machine coordinate
system zero point
+Z
+X
Machine
home
point
A
B
AMP-defined home
coordinates
X = A
Z = B
The following procedure describes how the control is homed manually by
using the pushbuttons on the standard MTB panel. Manual homing may be
different for some machines depending on the PAL program written by
your system installer.
Important: When a homing request is made the feedback device for the
axis (typically an encoder) must encounter at least one marker before
tripping the homing limit switch. If the axis is close to the home limit
switch you should jog the axis away from this switch before attempting a
homing operation.
Important: Automatic homing is available.
Figure 4.4
Manual Machine Home
Machine home
AXIS/DIRECTION
Cutting tool
+X +4 --X
+Y TRVRS --Y
+Z --4 --Z
JOG SELECT
INCR CONT
HAND HOME
To execute the manual return to machine home position:
1. Select HOME under <JOG SELECT> .