Siemens Sinumerik 840D Operating Turning page 169

Approaching the reference point of the axes
3.1 Referencing sequence
Before referencing the axes, a check must be
carried out to ensure that there is no danger of
collisions during the approach.
Machines with incremental measuring systems must be referenced after
switching on in order to synchronize the measuring system with the ma-
chine coordinate system.
Press the "JOG"-key on the machine control panel.
Press the "REF.POINT"-key on the machine control
panel.
The respective LEDs above the keys are illuminated.
The Referencing screen
ing (see image below).
3.2 Approaching the reference point
Depending on the commissioning of the machine there are various ways of
referencing.
Note:
For more information see the documentation of the machine manufacturer.
3.2.1. Automatic referencing
Press the "CYCLE START"-key on the machine con-
trol panel.
The axes will be referenced one after the other.
840D/828D SINUMERIK Operate
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opens up with all the axes that need referenc-
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Page 5
Section 3
Notes
B517
B517