Siemens SINUMERIK 828D Operating Manual page 71

"REF POINT" operating mode
The "REF POINT" operating mode is used to synchronize the control and the machine. For
this purpose, you approach the reference point in "JOG" mode.
Selecting "REF POINT"
"REPOS" operating mode
The "REPOS" operating mode is used for repositioning to a defined position. After a program
interruption (e.g. to correct tool wear values) move the tool away from the contour in "JOG"
mode.
The distances traversed in "JOG" mode are displayed in the actual value window as the
"Repos" offset.
"REPOS" offsets can be displayed in the machine coordinate system (MCS) or workpiece
coordinate system (WCS).
Selecting "Repos"
"MDI" mode (Manual Data Input)
In "MDI" mode, you can enter and execute G code commands non-modally to set up the
machine or to perform a single action.
Selecting "MDI"
"AUTO" mode
In automatic mode, you can execute a program completely or only partially.
Select "AUTO"
Turning
Operating Manual, 01/2015, 6FC5398-8CP40-5BA2
Press the <REF POINT> key.
Press the <REPOS> key.
Press the <MDI> key.
Press the <AUTO> key.
Setting up the machine
3.3 Modes and mode groups
71