Siemens SINUMERIK 804D sl Commissioning Manual page 169

Machine data
Table 10-31 Synchronizing spindle: Machine data
Axisspecific ($MA_ ... )
34100 REFP_SET_POS
34090 REFP_MOVE_DIST_CORR
34200 REFP_MODE
Interface signals
Table 10-32 Synchronizing spindle: Interface signals
DB number Bit, byte
Axis-specific
31, ... 16.4
31, ... 16.5
Axis-specific
31, ... 60.4
31, ... 60.5
CNC Part 1 (NCK, PLC, drive)
Commissioning Manual, 11/2006, 6FC5397-2AP10-2BA0
Notice
If the spindle encoder is not mounted directly on the spindle and there are speed-
transforming gears between the encoder and spindle (e.g. encoder mounted on motor),
then a reference cam signal connected to the drive module must be used for
synchronization. The control system then automatically resynchronizes the spindle after
each gear stage change. The user does not have to contribute anything here.
In general, backlash, gearbox elasticity and reference cam hysteresis reduce the
accuracy achievable during synchronization.
Name
Signals from PLC to axis/spindle
Synchronize spindle 1
Synchronize spindle 2
Signals from axis/spindle to PLC
Referenced/synchronized 1
Referenced/synchronized 2
10.6 Parameterization of spindle data
Reference point value
Reference point offset
Referencing mode
NCK start-up
Reference
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