Indexed Axes/"Hirth" Axes; Table 10-17 Positioning Axes: Interface Signals - Siemens SINUMERIK 804D sl Commissioning Manual

NCK start-up
10.5 Parameterize axis data
Number Identifier
axisspecific ($MA_ ... )
30450 IS_CONCURRENT_POS_AX
32060 POS_AX_VELO
Interface signals

Table 10-17 Positioning axes: Interface signals

DB number Bit, byte
Axis/spindle-specific
31,... 0
31,... 2.2
31,... 74.5
31,... 78-81
Literature
Function Manual Expanded Functions; Positioning axes
10.5.6

Indexed axes/"Hirth" axes

Indexed axes are rotary or linear axes, which can be traversed to indexed positions by index
program instructions.
These indexed positions are approached in JOG mode.
In "normal" positioning, every position can be approached.
Note
Traversing to indexing positions using the parts program or manually is only effective if the
corresponding machine axis has been successfully referenced.
Hirth axes are indexing axes with Hirth tooth system. These axes are rotary or linear axes,
which may only be traversed to defined positions, the indexing positions, within the
traversing range (MD30505 HIRTH_IS_ACTIVE).
The indexing positions are stored in tables.
Indexing axis
Machine data
• MD30500 INDEX_AX_ASSIGN_POS_TAB[n] (axis is indexing axis)
130
Name
Signals from PLC to axis/spindle
Feedrate override, axis-specific
Delete distance-to-go, axis-specific
Signals from axis/spindle to PLC
Positioning axis
F function (feedrate) for positioning axis
Name
Concurrent positioning axis
Feedrate for positioning axis
Commissioning Manual, 11/2006, 6FC5397-2AP10-2BA0
Reference
Reference
CNC Part 1 (NCK, PLC, drive)