Siemens SINUMERIK 840D sl Function Manual page 914

Z2: NC/PLC interface signals
19.3 Manual and Handwheel Travel (H1)
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
Edge evaluation: No
Description One of the three handwheels can be selected/deselected as contour handwheel via these signals:
Signal = 1
Signal = 0
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 hand‐
wheel.
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 kept beyond an 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 direc‐
tion, 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 current movement is decelerated by the braking ramp.
When the traversing direction is switched, the current 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 hand‐
errors, ... wheel is activated.
DB21, ...
DBX31.5 Invert handwheel direction of rotation for contour handwheel
Edge evaluation: No
Description You can invert the direction of rotation of a contour handwheel by setting this PLC interface signal.
Application exam‐ ● The direction of movement of the handwheel does not match the expected direction of the axis.
ple(s)
● A handwheel (HT2, HT8) has been assigned to various axes.
914
Signal(s) updated: Cyclic
Handwheel x is selected as contour handwheel
Handwheel x is deselected as contour handwheel
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
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions