HEIDENHAIN CNC Pilot 4290 V7.1 - Manual (Page 58)

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3.1 S
w
itc
h
-On, S
w
itc
h
-Of
f, Ref
e
re
nce Run
3.1 Switch-On, Switch-Off,
Reference Run
Switch-on
In the header, the CNC PILOT displays the individual steps of the
system start and then prompts you to select an operating mode.
Whether the reference run is necessary depends on the encoders
installed:
„ EnDat encoder: Reference run is not necessary.
„ Distance-coded encoders: The position of the axes is ascertained
after a short reference run.
„ Standard encoder: The axes move to known, machine-based points.
After completion of the reference run:
„ This position display is activated.
„ Automatic mode can be selected.
Reference run for all axes
Select Ref > Reference automatic.
The “Status of reference run approach” dialog box informs you of the
current status.
Either set the slides that need to find a reference or set “All slides”
(“reference automatic” dialog box)
To start the reference run, press Cycle Start.
“Feed stop” interrupts the reference run. Cycle start
resumes the reference run.
“Cycle stop” interrupts the reference run.
The software limit switches are active only after you
have traversed the reference marks.
The sequence in which the axis make their reference run
is defined in MPs 203 and 253 ff.