Siemens SINUMERIK 840D sl Function Manual page 465

● An ongoing JOG movement is not complete until the end position of the increment has been
reached (if this has been set) or the movement has been aborted with "Delete distance-to-
go".
In this way an increment can be stopped using Stop and then moved to the end using Start.
The NCK remains in "Internal JOG" during this time. A partial increment is possible, but it
must not be interrupted using Stop. There is a mode in which releasing the travel key causes
interruption within an increment.
● Without any JOG movement, "JOG in AUTOMATIC" responds in the same way as
"Automatic". In particular, the Start key starts the selected part program and the appropriate
HMI softkey initiates a block search.
● If JOG movement is active, the NCK is internally in JOG mode, and, thus, a block search
request is refused and a Start cannot start the part program. Start starts any remaining
increment or has no effect.
● While a mode group axis is being traversed in JOG mode, the mode group remains
internally in JOG mode.
Comment: This phase can begin with the JOG movement of an axis and end with the end
of the JOG movement of
● Axis interchange is not possible for an axis with active JOG movement (the axis might
change mode group). The NCK blocks any axis interchange attempt.
● The PLC user interface indicates "Automatic" mode:
– DB11 DBX6.0, 6.1, 6.2 = 1
– DB11 DBX7.0, 7.1, 7.2 = 0
● In "JOG in AUTOMATIC", the NC/PLC interface displays whether the mode group is in
"Mode group RESET".
– DB11 DBX6.4 (mode group has been reset, mode group 1)
– DB11 DBX26.4 (mode group has been reset, mode group 2)
– DB11 DBX46.4 (mode group has been reset, mode group 3)
● In "JOG in AUTOMATIC", the NC/PLC interface displays whether the NC has automatically
switched to "Internal JOG".
– DB11 DBX6.5 (NCK internal JOG active, mode group 1)
– DB11 DBX26.5 (NCK internal JOG active, mode group 2)
– DB11 DBX46.5 (NCK internal JOG active, mode group 3)
Supplementary conditions
"JOG in AUTOMATIC" can only switch internally to JOG if the mode group is in "Mode group
RESET" state, i.e. it is not possible to jog immediately in the middle of a stopped program. The
user can jog in this situation by pressing the JOG key or the Reset key
mode group.
Selecting AUTOMATIC disables the INC keys and the user can/must press the INC keys again
to select the desired increment. If the NCK switches to "Internal JOG", the selected increment
is retained.
If the user attempts to jog the geometry or orientation axes, the NCK switches to "Internal JOG"
and the movement executed. Several axes can be physically moved in this way; they must all
be "JOG-capable".
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
K1: Mode group, channel, program operation, reset response
another axis.
9.3 Mode types and mode type change
in all channels of the
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