Siemens SINUMERIK 840D Function Manual page 654

H1: Manual traversing
17.6 Manual traversing using a handwheel
● Additional information on the machine or geometry axis:
DB10 DBX100.7 (machine axis handwheel 1)
DB10 DBX101.7 (machine axis handwheel 2)
DB10 DBX102.7 (machine axis handwheel 3)
● The information that the handwheel is enabled or disabled:
DB10 DBX100.6 (handwheel 1 selected)
DB10 DBX101.6 (handwheel 2 selected)
DB10 DBX102.6 (handwheel 3 selected)
For the specified axis, the basic PLC program sets the associated interface signal either to "0"
(disable) or to "1" (enable):
● Machine axes:
– DB31, ... DBX4.0 - 2 (activate handwheel)
● Geometry axes:
– DB21, ... DBX12.0 - 2 (geometry axis 1: Activate handwheel)
– DB21, ... DBX16.0 - 2 (geometry axis 2: Activate handwheel)
– DB21, ... DBX20.0 - 2 (geometry axis 3: Activate handwheel)
Note
Orientation axes can only be activated via the associated PLC user interface signals:
● DB21, ... DBX320.0 - 2 (orientation axis 1: Activate handwheel)
● DB21, ... DBX324.0 - 2 (orientation axis 2: Activate handwheel)
● DB21, ... DBX328.0 - 2 (orientation axis 3: Activate handwheel)
Travel request
The following NC/PLC interface signal informs the PLC that an axis wants to travel or is
travelling:
● Machine axes:
– DB31, ... DBX64.4 (travel request "minus") or
– DB31, ... DBX64.5 (travel request "plus")
● Geometry axis 1:
– DB21, ... DBX40.4 (geometry axis 1: Travel request "minus") or
– DB21, ... DBX40.5 (geometry axis 1: Travel request "plus")
● Geometry axis 2:
– DB21, ... DBX46.4 (geometry axis 2: Travel request "minus") or
– DB21, ... DBX46.5 (geometry axis 2: Travel request "plus")
● Geometry axis 3:
– DB21, ... DBX52.4 (geometry axis 3: Travel request "minus") or
– DB21, ... DBX52.5 (geometry axis 3: Travel request "plus")
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Axes and spindles
Function Manual, 06/2019, A5E47437747B AA