Siemens SINUMERIK 840D sl Function Manual page 764
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Also See for SINUMERIK 840D sl:
- Function manual (2184 pages) ,
- Programming manual (1334 pages) ,
- Commissioning manual (1102 pages)
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P2: Positioning axes
11.1 Brief description
Note
"Positioning axis/Auxiliary spindle" option
Axes for auxiliary movements must not be interpolating ("full-value") NC axes. Auxiliary
movements may also be carried out using special axes, which can be obtained using the
"Positioning axis/Auxiliary spindle" option.
Functional restrictions
Optional positioning axes/auxiliary spindles have fewer functions. The following functions are
not possible:
• Using the axis as a path axis, geometry axis, or special path axis
• Incorporating the axis into the geometry axis grouping (GEOAX)
• Rigid thread cutting and tapping
Commissioning
As standard, axes are defined as interpolating axes:
MD30460 $MA_BASE_FUNCTION_MASK bit 8 = 0
If an axis is to be operated as a positioning axis/auxiliary spindle with reduced functionality,
the value for bit 8 must be set to "1":
MD30460 $MA_BASE_FUNCTION_MASK bit 8 = 1
Function
The "positioning axes" function makes it easier to integrate axes for auxiliary movement into
the control system:
● During programming:
● During program testing/start-up:
● During operation:
● During PLC configuring/commissioning:
● During system configuring:
764
The axes are programmed together with the axes for workpiece machining in the same
part program, without having to sacrifice valuable machining time.
There are special (POS, POSA) traversing instructions.
Program testing and start-up are performed simultaneously for all axes.
Operation and monitoring of the machining process commence simultaneously for all
axes.
No allowance has to be made on PLC or external computers (PCs) for synchronization
between axes for machining and axes for auxiliary movements.
A second channel is not required.
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
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