Siemens sinumerik 840D sl Function Manual page 625

Constraints
3.1 Speed /torque coupling (SW 6 and higher)
3.1 Speed/torque coupling (SW 6 and higher)
option
The speed/torque coupling function is an option and not available in every control variant.
The master-slave function requires the master and slave axes to be operated on the same
NCU.
Note
The master-slave function requires the master and slave axes to be operated on the same
NCU.
• A coupled slave axis cannot be rotated around the axis container.
• Closing and separating the master-slave coupling is carried out when the axis has
• Traversing a slave axis with the coupling closed is possible only via the master axis.
• Axis replacement is not performed for coupled slave axes.
• When the coupling is closed via the slave axis, the master axis is braked automatically (if
• Block search with calculation (SERUPRO) takes into account the positional changes of
Differences compared to previous solution (up to SW 5.x)
• If a traversing movement is programmed for a slave axis that has already been coupled,
• The setpoint position of the coupled slave axis corresponds to the current actual position.
• On request, the coupling is made or released independent of the channel status the next
• PLC interface signal DB3x.DBX61.5 "Position controller active" must no longer be
• If a master axis is simultaneously configured as a slave axis, the alarm "26031 Axis %1
• If a coupling is requested and closed, the control activation signals are derived directly
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stopped.
defined in the same channel). This produces an asymmetric response on closure and
separation of the coupling. In contrast to closing, there is no automatic braking on
separation.
coupled slave axes after a block search only if a system ASUB (asynchronous
subroutine) "PROGEVENT.SPF" has been generated. This can be used to subsequently
adjust the coupling state and associated axis positions so as to update changes to the
coupling state.
the alarm "14092 Channel %1 Block %2 Axis %3 has the wrong type" appears.
time the axis stops. This allows the coupling status to be changed even during part
program processing.
interpreted in the braking control logic of the slave axes. This is no longer set for an
active coupling. Instead, the interface signal "Master-slave coupling status active" should
be used.
Configuration error master-slave" appears. So cascading is not possible.
from the master axis.
Special functions: Speed/Torque Coupling, Master-Slave (TE3)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0