Siemens SINUMERIK 840D sl Function Manual page 154

H1: Manual and handwheel travel
4.3 Parameter assignment (general)
Rapid traverse override
If the traversing keys/manual wheel are also actuated together with the rapid traverse override
key, the movement will be made with the configured rapid traverse velocity:
● Machine axes
– MD32010 $MA_JOG_VELO_RAPID (rapid traverse in jog mode)
– MD32040 $MA_JOG_REV_VELO_RAPID (revolutional feedrate for JOG with rapid
● Geometry axes
– MD21160 $MC_JOG_VELO_RAPID_GEO (conventional rapid traverse for geometry
● Orientation axes
– MD21150 $MC_JOG_VELO_RAPID_ORI (conventional rapid traverse for orientation
Feedrate override
The velocity applied for manual traversing can also be influenced using the axis-specific
feedrate override switch provided that the following NC/PLC interface signal is set:
DB31, ... DBX1.7 (axis-specific feedrate override active)
Percentages are assigned to the individual feedrate override switch positions via machine
data. For a switch position of 0% the axis is not traversed, provided that 0 is entered in the
associated machine data.
The interface signal DB31, ... DBX1.7 (axis-specific feedrate override active) has no meaning
for switch position 0%.
Instead of being set by the feedrate override switch position (gray code), the percentage value
(0% to 200%) can optionally be set directly by the PLC. Again, the selection is made via
machine data.
References:
Function Manual, Basic Functions; Feedrates (V1)
Spindle override
The velocity during manual traversing of the spindle can be influenced by the spindle
compensation switch.
References:
Function Manual Basic Functions; Spindles (S1)
Acceleration and jerk
To avoid unwanted machine motions in JOG mode, separate axis-specific acceleration and
jerk limit values can be specified for JOG motion.
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traverse override)
axes)
axes)
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions