Siemens SINUMERIK 840D sl Function Manual page 1041

DB21, ...
DBX12.4, 16.4, 20.4 Traverse key disable for geometry axis (1, 2, 3)
Edge evaluation: No
Signal state 1 or The traverse keys plus and minus have no effect on the geometry axes in question. It is thus not
edge change 0 → 1 possible to traverse the geometry axis in JOG with the traverse keys on the machine control panel.
If the traverse key disable is activated during a traverse movement, the geometry axis is stopped.
Signal state 0 The plus and minus traverse keys are enabled.
Application It is thus possible, depending on the operating mode, to disable manual traverse of the geometry
example(s) axis in JOG mode with the traverse keys from the PLC user program.
Corresponding to .... DB21, ... DBX12.7 bzw DBX12.6 ff
(Traverse key plus and/or traverse key minus for geometry axis)
DB21, ...
DBX12.5, 16.5, 20.5 Input override for geometry axis (1, 2, 3)
Edge evaluation: No
Signal state 1 or If together with interface signal:
edge change 0 → 1 DB21, ... DBX12.7 or DBX12.6 ff (traverse key plus or traverse key minus)
the PLC interface signal:
DB21, ... DBB12.5, 16.5 or. 20.5 (Rapid traverse override on geometry axes)
is sent, then the corresponding geometry axis is operating with rapid traverse.
The rapid traverse feedrate is defined in machine data:
MD32010 $MA_JOG_VELO_RAPID (Conventional rapid traverse).
The rapid traverse override is effective in the JOG mode for the following versions:
•
•
If rapid traverse override is active, the velocity can be modified with the rapid traverse override
switch.
Signal state 0 or The geometry axis traverses with the defined JOG velocity:
edge change 1 → 0 SD41110 $SN_JOG_SET_VELO (Axis velocity with JOG)
or
MD32020 $MA_JOG_VELO (Conventional axis velocity).
Signal irrelevant for •
...
•
Corresponding to .... DB21, ... DBX12.7 and/or DBX12.6 ff (Traverse key plus and traverse key minus for geometry axis)
References /FB1/ Function Manual Basic Functions; Feedrates (V1)
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
Signal(s) updated: Cyclically
Signal(s) updated: Cyclically
Continuous move
Incremental travel
Operating modes AUTOMATIC and MDA
Reference point approach (JOG mode)
Z2: NC/PLC interface signals
19.4 Manual and handwheel travel
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