Siemens SINUMERIK 840D sl Function Manual page 200

H1: Manual and handwheel travel
4.11 Circular travel in JOG
Internal or external machining
Depending on the specification in the setting data SD42692 $SC_JOG_CIRCLE_MODE,
internal or external machining takes place:
● Internal machining
– Traversing is only possible within the defined circle.
– The circle radius in SD42691 $SA_CIRCLE_RADIUS is the maximum radius.
● External machining
– Traversing is only possible outside of the defined circle.
– The circle radius in SD42691 $SA_CIRCLE_RADIUS is the minimum radius.
Figure 4-5
Circle segment machining
By specifying a start and end angle, the working area for the 1st and 2nd geometry axis can
be limited to a circle segment:
SD42693 $SC_JOG_CIRCLE_START_ANGLE (circle start angle)
SD42694 $SC_JOG_CIRCLE_END_ANGLE (circle end angle)
Furthermore, the direction from the start to the end angle must be specified to permit the unique
definition of the circle segment:
200
Circular travel in JOG: Internal/external machining
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions