Siemens sinumerik 840D sl Function Manual page 240

Detailed description
2.1 Coupled motion
Distance-to-go: Coupled motion axis
The distance-to-go of a coupled motion axis refers to the total residual distance to be
traversed from dependent and independent traversing.
Delete distance-to-go: Coupled motion axis
Delete distance-to-go for a coupled motion axis only results in aborting of the independent
traversing movement of the leading axis.
Response to NC Start
The behavior of the coupled-axis groupings during NC Start depends on the setting in the
machine data:
MD20112 $MC_START_MODE_MASK (definition of initial control settings with NC-START)
Bit
8
Response to RESET/part program end
The behavior of the coupled-axis groupings during RESET/ part program end depends on
the setting in the machine data:
MD20110 $MC_RESET_MODE_MASK (definition of initial control settings after RESET/TP-
End)
Bit
8
Note
If with NC RESET or end of part program in a channel, the leading axis is not stopped as
well (cross-channel coupling, command axis, PLC axis, etc.), the requested RESET cannot
be completed.
Because of traversing of the leading axis, the coupled-motion axis is still active for the
channel in which the RESET is requested. With suitable actions (NC RESET in the channel
of the leading axis, stopping of the command or PLC axis), the leading axis must also be
stopped in parallel to the coupled-motion axis.
20
Value Description
0 Coupled-axis groupings are maintained in NC Start.
1 Coupled-axis groupings are phased out in NC Start.
Value Description
0 Coupled-axis groupings are invalidated on RESET / part program end.
1 Coupled-axis groupings remain active even beyond RESET/part program end.
Special functions: Axis Couplings and ESR (M3)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0