Siemens SINUMERIK 840D sl Function Manual page 297

Handwheel assignment
A handwheel is assigned to a geometry or machine axes via a separate axis-specific VDI
interface signal.
The axis to be moved as a result of rotating handwheel 1 or 2 is set as follows:
● Via the PLC user interface using the
or
● using menu-assisted operation (HMI)
The assignment is linked to the PLC interface through the PLC user program. In this way,
several axes can be assigned to one handwheel simultaneously.
Function
The electronic handwheels (accessories) can be used to simultaneously traverse selected
axes manually. The weighting of the handwheel graduations is dependent on the increment-
size weighting. Where coordinate offset or rotation is selected, manual traversal can even be
performed in the transformed workpiece coordinate system.
Handwheel selection by HMI
A separate user interface is provided between the HMI and PLC to allow activation of the
handwheel from the operator-panel front. This interface supplied by the basic PLC program
for handwheels 1 and 2 contains the following information:
● Axis numbers assigned to the handwheel:
● Additional information about the machine or geometry axis:
● The channel number assigned to the handwheel, if a geometry axis was selected during
● Information about whether the handwheel is enabled or disabled:
The PLC basic program sets the corresponding interface signal for the specified axis:
DB31, ... DBX4.0 - DBX4.2 (activate handwheel)
(for geometry axis: DB21, ... DBX12.0 - 12.2 ff)
either to "0" (disable) or to "1" (enable).
Extended Functions
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
DB31, ... DBX4.0 - DBX4.2 (activate handwheel) interface signal.
(for geometry axis: DB21, ... DBX12.0 - 12.2 ff)
Pressing the "Handwheel" softkey in the JOG-mode basic menu displays the
"Handwheel" window. Here, every handwheel can be assigned an axis and the
handwheel can be enabled or disabled.
DB10 DBB100 ff (axis number of handwheel n)
DB10 DBX100.7 ff (machine axis)
handwheel selection:
DB10 DBX97 ff (channel number of geometry axis of handwheel n)
DB10 DBX100.6 ff (handwheel deselected)
Manual and Handwheel Travel (H1)
Handwheel travel in JOG
297