Siemens SINUMERIK 840D sl Function Manual page 302

H1: Manual travel and handwheel travel
4.4 Handwheel travel in JOG
Figure 4-4
If a stop condition is activated during the handwheel-travel movement, the movement is
aborted and the "travel request" and "motion command" are reset.
With velocity specification
If the handwheel is no longer moved with velocity specification
(MD11346 $MN_HANDWH_TRUE_DISTANCE == 0 or == 2),
the "travel request" PLC signal is reset.
The "travel request" PLC signal is also reset when the handwheel is deselected.
Figure 4-5
302
Signal/timing diagram, handwheel travel when stop condition is abort criterion
Signal/timing diagram, handwheel travel with velocity specification when stop condition is
abort criterion
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
Extended Functions