Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 57)

Basic Control Operation
Chapter 2
2-33
The control provides 3 basic operation modes:
manual (MAN or MANUAL)
manual data input (MDI)
automatic (AUTO)
You can select a mode by using <MODE SELECT> on the MTB panel, or
using the {FRONT PANEL} softkey. This is configurable by your system
installer. Both means of selection cannot be available. Details on using
the
{FRONT PANEL} softkey are given on page 2-15.
Depending on the current control status, a mode change request cannot be
honored. Operating modes may not be changed if any of these are true:
The control is in E-Stop.
The control is in the cycle-suspend state. This results when a program
is halted during the execution of a block.
The control is executing a threading- or multiple-pass turning cycle.
Important: Your system installer may have written PAL to disable the use
of the
{FRONT PANEL} softkey to change modes. If this is the case, then
changing modes can be performed by using only <MODE SELECT> on the
MTB panel.
2.8
Changing Operating Modes