Siemens SINUMERIK 840D Function Manual page 462

M3: Coupled axes
14.3 Master value coupling
MD20112 $MC_START_MODE_MASK (bit 13) (definition of initial control system settings with
NC-START)
● MD20110 $MC_RESET_MODE_MASK=2001H
&&
MD20112 $MC_START_MODE_MASK=0H
→ Master value coupling remains valid after RESET and START
● MD20110 $MC_RESET_MODE_MASK=2001H
&&
MD20112 $MC_START_MODE_MASK=2000H
→ Master value coupling remains valid after RESET and is canceled with START. However,
master value coupling activated via IDS=... remains valid.
● MD20110 $MC_RESET_MODE_MASK=1H
→ Master value coupling is canceled with RESET irrespective of machine data:
MD20112 $MC_START_MODE_MASK
Master value coupling activated via IDS=... can only be deactivated via an operator front
panel reset and remains valid after program end/reset (M30, M02).
● MD20110 $MC_RESET_MODE_MASK=0H
→ Master value coupling remains valid after RESET and is canceled with START, irrespective
of machine data:
MD20112 $MC_START_MODE_MASK
However, master value coupling activated via IDS=... remains valid.
Further information
Function Manual Basic Functions; Coordinate systems, axis types, axis configurations, ...
Activating, deactivating
Master value couplings activated via a static synchronous action (IDS=...) are:
● not deactivated during program start, regardless of the value of machine data:
MD20110 $MC_RESET_MODE_MASK (definition of initial control settings after RESET /
TP End)
and
MD20112 $MC_START_MODE_MASK (definition of initial control system settings with NC-
START)
● not deactivated during program end reset (M30, M02), regardless of the value of machine
data:
MD20110 $MC_RESET_MODE_MASK
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Axes and spindles
Function Manual, 06/2019, A5E47437747B AA