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Siemens SINUMERIK 828D Programming Manual

Siemens SINUMERIK 828D
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Axis couplings
9.6 Master/slave group (MASLDEF, MASLDEL, MASLON, MASLOF, MASLOFS)
Job planning
548 Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
Further information
General
MASLOF
This instruction is executed directly for spindles in speed control mode.
The slave spindles rotating at this instant keep their speeds until a new
speed is programmed.
Dynamic configuration extension
MASLDEF
Definition of a master/slave group from the part program. Beforehand, the
definition was made exclusively using machine data.
MASLDEL
The instruction cancels assignment of the slave axes to the master axis
and simultaneously opens the coupling, like MASLOF.
The master/slave definitions specified in the machine data are kept.
MASLOFS
MASLOFS can be used to automatically brake slave spindles when the
coupling is opened.
For axes and spindles in the positioning mode, the coupling is only closed
and opened at standstill (zero speed).
Note
For the slave axis, the actual value can be synchronized to the same value of the master
axis using
PRESETON. To do this, the permanent/slave coupling must be briefly switched-out in
order to set the actual value of the non-referenced slave axis to the value of the master/axis
with power on. Then the coupling is permanently re-established.
The permanent master/slave coupling is activated using the MD setting
MD37262 $MA_MS_COUPLING_ALWAYS_ACTIVE = 1 – and this has no effect on the
language commands of the temporary coupling.
Coupling behavior for spindles!
For spindles in the open-loop speed controlled mode, the coupling behavior of
MASLON,
MASLOF, MASLOFS and MASLDEL are explicitly defined using machine data
MD37263 $MA_MS_SPIND_COUPLING_MODE.
For the default setting with MD37263 = 0, the slave axes are coupled-in and coupled-out
only when the axes involved are at standstill.
MASLOFS corresponds to MASLOF.
For MD37263 = 1, the coupling instruction is immediately executed and therefore also the
motion. For
MASLON the coupling is immediately closed and for MASLOFS or MASLOF immediately
opened. The slave spindles rotating at this instant in time are for
MASLOFS automatically
braked and for
MASLOF keep their speed until a new speed is programmed.

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Siemens SINUMERIK 828D Specifications

General IconGeneral
Control TypeCNC
Operating SystemWindows Embedded
ProcessorIntel Atom
Display10.4" color TFT display
InterfacesEthernet, USB
ProgrammingShopMill, ShopTurn
Operation Panel Size10.4"
Protection ClassIP65
PLC Memory2 MB
Spindle Capacity4 spindles
Hard DriveCompactFlash

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