Siemens SINUMERIK 840D Function Manual page 656

H1: Manual traversing
17.6 Manual traversing using a handwheel
● Orientation axis 2:
– DB21, ... DBX336.6 (orientation axis 2: Travel command "minus") or
– DB21, ... DBX336.7 (orientation axis 2: Travel command "plus")
● Orientation axis 3:
– DB21, ... DBX340.6 (orientation axis 3: Travel command "minus") or
– DB21, ... DBX340.7 (orientation axis 3: Travel command "plus")
Note
A travel command set in JOG mode is canceled if the controller enable or pulse enable for the
axis to be traversed is missing. The travel command must therefore be set again after release
of the axis.
Invert handwheel direction of rotation
The handwheel direction of rotation can be inverted, if the direction of movement of the
handwheel does not match the expected direction of motion of the axis. The adaptation can be
especially necessary, if a handwheel (HT2, HT8) can be assigned to various axes.
In addition to configuring the particular MD, handwheel direction of rotation inversion can be
activated by setting the IS "Invert the handwheel direction of rotation" belonging to the particular
axis:
● Machine axes:
– DB31, ... DBX7.0 (invert handwheel direction of rotation)
● Geometry axes:
– DB21, ... DBX15.0 (geometry axis 1: Invert handwheel direction of rotation)
– DB21, ... DBX19.0 (geometry axis 2: Invert handwheel direction of rotation)
– DB21, ... DBX23.0 (geometry axis 3: Invert handwheel direction of rotation)
● Orientation axes:
– DB21, ... DBX323.0 (orientation axis 1: Invert handwheel direction of rotation)
– DB21, ... DBX327.0 (orientation axis 2: Invert handwheel direction of rotation)
– DB21, ... DBX331.0 (orientation axis 3: Invert handwheel direction of rotation)
● Contour handwheel:
– DB21, ... DBX31.5 (contour handwheel: Invert handwheel direction of rotation)
Note
The inversion signal should be set in the PLC user program at the same time as the handwheel
selection (IS "Activate handwheel").
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Axes and spindles
Function Manual, 06/2019, A5E47437747B AA