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Siemens SINUMERIK 840D Operator's Manual Page 85

Computerized numerical control system for machine tools.
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4
03.04
REF
Ref Point
or
+X
X
...
X
9th Axis
...
+
Feed Stop
+X
X
...
X
9th Axis
...
+
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/810D Operator's Guide HMI Embedded (BEM) – 03.04 Edition
4.3 Reference point approach
Operating sequence
"Jog" or "MDA" is selected in the "Machine" operating area.
The channel for reference point approach is selected.
The "Ref Point" machine function is selected.
Turning machine:
Press the "Axis" keys.
Milling machine:
Select the axis to be traversed and
press the "+" or "–" key.
The selected axis moves to the reference point. The direction and
sequence is defined by the machine-tool manufacturer in the PLC
program.
If you have pressed the wrong direction key, the action is not
accepted and the axes do not move.
The display shows the reference point value.
No symbol is displayed for axes that do not refer to a reference
point.
This symbol appears for axes that must be referenced.
This symbol is displayed next to the axis when the reference
point has been reached.
The axis, once started, can be stopped before it reaches the
reference point.
Turning machine:
Press the "Axis" keys.
Milling machine:
Select the axis to be traversed and
press the "+" or "–" key.
The selected axis moves to the reference point.
Machine Operating Area
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