Siemens SINUMERIK 840D sl Function Manual page 1051

DB21, ...
DBX30.0 Activate handwheel 1 as contour handwheel
DBX30.1 Activate handwheel 2 as contour handwheel
DBX30.2 Activate handwheel 3 as contour handwheel
Enabling/disabling of the contour handwheel can be performed in the middle of a block.
Upon enabling, the movement is first decelerated and then traversed according to the contour
handwheel.
Upon disabling, the movement is decelerated and the NC program is continued immediately. If the
NC program is to be continued only after a new NC START, then deactivation of the contour
handwheel in the PLC user program must be combined with an NC STOP.
Special cases, The signal is maintained after NC RESET.
errors, ....
Corresponding to .... DB21, ... DBX37.0, 37.1, 37.2 (Handwheel x active as contour handwheel)
DB21, ...
DBX30.3 Simulation contour handwheel on
DBX30.4 Negative direction simulation contour handwheel
Edge evaluation: No
Description For enabling/disabling simulation of the contour handwheel, and for definition of the traversing
direction, these signals have to be set as follows:
Bit 3
0
0
1
1
During simulation the feedrate is no longer defined by the contour handwheel, but traversing occurs
with the programmed feedrate on the contour.
When the function is deselected, the runniung movement is decelerated by the braking ramp.
When the traversing direction is switched, the running movement is decelerated by the braking
ramp, and traversing occurs in the opposite direction.
Special cases, Simulation is only effective in AUTOMATIC mode and can only be activated when the contour
errors, .... handwheel is activated.
DB21, ...
DBX37.0 Handwheel 1 active as contour handwheel
DBX37.1 Handwheel 2 active as contour handwheel
DBX37.2 Handwheel 3 active as contour handwheel
Edge evaluation: No
Description These signals show which handwheel is selected as contour handwheel:
Signal = 1
Signal = 0
Special cases, The signal is maintained after NC RESET.
errors, ....
Corresponding to .... DB21, ... DBX30.0, 30.1, 30.2 (Handwheel x active as contour handwheel)
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
Signal(s) updated: Cyclic
Bit 4 Meaning
0 Simulation OFF
1 Simulation OFF
0 Simulation ON, direction as programmed
1 Simulation ON, direction opposite programmed direction
Signal(s) updated: Cyclic
Handwheel x is selected as contour handwheel.
Handwheel x is deselected as contour handwheel.
Z2: NC/PLC interface signals
19.4 Manual and handwheel travel
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