Siemens sinumerik 840D sl Function Manual page 272

Detailed description
2.3 Master value coupling
Figure 2-5
Reaction to Stop
All master value coupled following axes react to channel stop and MODE GROUP stop.
Master value coupled following axes react to a stop due to end of program (M30, M02) if
they have not been activated by static synchronous actions (IDS=...). (Note:
MD20110 $MC_RESET_MODE_MASK (definition of initial control settings after RESET/TP-
End)
MD20112 $MC_START_MODE_MASK (definition of initial control system settings with NC-
START)
Leading axis and following axis must always interpolate in the same channel. A following
axis in a different channel cannot be coupled (axis exchange).
START and mode change enable a following axis in the master value coupling that has been
stopped.
RESET also enables a stopped following axis in master value coupling. If enabling by
RESET is not desired, or if it is dangerous (e.g. because the following axis is coupled to an
external master value not controlled by the NC), then the following machine data must be
programmed such that master value couplings are switched off with RESET (2001H, i.e. bit
13 set to 1):
MD20110 $MC_RESET_MODE_MASK
52
Master value coupling offset and scaling (with increment offset)
Special functions: Axis Couplings and ESR (M3)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0