Siemens SINUMERIK 840D sl Function Manual page 600

TE6: MCS coupling
14.1 Brief description
CC_Master, CC_Slave
There are CC_Master and CC_Slave axes. A CC_Master axis can have several CC_Slave
axes, but a CC_Slave axis cannot be a CC_Master axis (error message).
The coupling between these pairs is activated and deactivated by means of an OEM-specific
language command and can thus be active in all operating modes. If a CC_Slave axis is
programmed in a part program, either an alarm is output or a "GET" operation initiated,
depending on machine data:
MD30552 $MA_AUTO_GET_TYPE (automatic GET from axis)
The following restrictions apply to CC-Slave axes:
• it cannot be made into a PLC axis,
• it cannot be made into a command axis,
• it cannot be operated separately from its CC_Master axis in JOG mode.
A tolerance window between the CC_Master and CC_Slave axes is specified via an axial
machine data. When an MCS coupling is active, the actual values of the two axes must not
leave this window.
Collision protection
To protect machining heads against collision in decoupled operation or in mirrored coupling
mode, a collision protection can be set in a machine data. This is then activated either via a
machine data or via the VDI-IN interface. The assignment of the protected pairs is not related
to the CC_Master and CC_Slave pairs.
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Function Manual, 09/2011, 6FC5397-2BP40-2BA0
Special Functions