Siemens SINUMERIK 840D sl Function Manual page 300

Manual and Handwheel Travel (H1)
Handwheel travel in JOG
Response at software limit switches, working-area limitation
When axes are traversed in JOG mode, they can traverse only up to the first active limitation
before the corresponding alarm is output.
MD11310 $MN_HANDWH_REVERSE (threshold for direction change handwheel)
Depending on the above machine data, the behavior is as follows (as long as the axis on the
setpoint side has not yet reached the end point):
● The distance resulting from the handwheel pulses forms a fictitious end point which is
● All handwheel pulses leading to an end point behind the limitation are ignored. Any
Limitations
The limitations are also active when traversing with the handwheel.
For more information, see "Monitoring functions".
Revolutional feedrate
In JOG mode, the response of the axis/spindle also depends on the setting made in setting
data SD41100 $SN_JOG_REV_IS_ACTIVE (JOG: revolutional/linear feedrate).
SD41100 $SN_JOG_REV_IS_ACTIVE (JOG: revolutional/linear feedrate)
Active
Not active
300
used for subsequent calculations.
If this fictitious end point is positioned, for example, 10 mm behind the limitation, these
10 mm must be traversed in the opposite direction before the axis traverses again. If a
movement in the opposite direction is to be performed immediately after a limitation is
reached, the fictitious distance-to-go can be deleted via delete distance-to-go or
deselection of the handwheel assignment.
movement of the handwheel in the opposite direction leads to an immediate movement in
the opposite direction, i.e. away from the limitation.
An axis/spindle is always traversed with revolutional feedrate
MD32050 $MA_JOG_REV_VELO (revolutional feedrate for JOG)
or
MD32040 $MA_JOG_REV_VELO_RAPID
(revolutional feedrate for JOG with rapid traverse override),
depending on the master spindle.
The response of the axis/spindle depends on setting data
SD43300 $SA_ASSIGN_FEED_PER_REV_SOURCE
(revolutional feedrate for positioning axes/spindles).
The response of a geometry axis that acts on a frame with rotation
depends on channel-specific setting data
SD42600 $SC_JOG_FEED_PER_REV_SOURCE
(control of revolutional feedrate in JOG).
(In JOG mode, revolutional feedrate for geometry axes on which a frame with
rotation is effective.)
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Extended Functions