Siemens SINUMERIK 840D sl Function Manual page 1078

NC/PLC Interface Signals (Z2)
Manual and handwheel travel
DB21, ...
DBB332, 336, 340
Bit 7, 6 Plus and minus travel command (for orientation axis)
Signal state 0 or A travel command in the relevant axis direction has not been given or a traverse movement has
edge change 1 → 0 been completed.
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Application To release clamping of axes with clamping (e.g. on a rotary table).
example(s)
Note:
If the clamping is not released until the travel command is given, these axes cannot be operated
under continuous path control!
Corresponding to .... DB21, ... DBX12.7 and/or DBX12.6 ff
(Traverse key plus and traverse key minus for geometry axis)
DB21, ... DBX 332, 336, 340 Bit 5, 4 (Traversing request plus/minus)
19.4.4 Signals with contour handwheel
Overview of interface signals for contour handwheel
1078
JOG mode:
The travel command is reset depending on the current setting "jog or continuous mode" (see
DB21, ... DBX12.7 or DBX12.6 ff).
While traversing with the handwheel.
REF mode:
When the reference point is reached.
AUT/MDA mode:
The program block has been executed (and the next block does not contain any coordinate
values for the axis in question).
Cancel by "RESET", etc.
interface signal DB21, ... DBX25.7 (axes disable) is active.
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Extended Functions