Siemens SINUMERIK 840D Operator's Manual page 117

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03.04
Feed Stop
+X X
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X
9th Axis
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Ó Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Operator's Guide HMI Advanced (BAD) – 03.04 Edition
4.3 Reference point approach
Machine manufacturer
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 are not referred to a reference
point.
This symbol is displayed for axes that need to be referenced.
This symbol is displayed next to the axis when the axis reaches
the reference point.
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
then press the "+" or "-" key.
The selected axis moves to the reference point.
Caution
The machine is synchronized as soon as the reference point is
reached. The actual value display is set to the reference point value.
The display is the difference between the machine zero and the slide
reference point. From now on path limits, such as software limit
switches, are active.
You can end the function by selecting another operating mode ("Jog",
"MDI" or "Automatic").
· All axes of a mode group can approach the reference point
simultaneously (depending on the PLC program of the machine-
tool manufacturer).
· The feedrate override is active.
Machine Operating Area
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