Siemens SINUMERIK 828D Programming Manual page 544

Axis couplings
9.5 Synchronous spindle
Current angular offset
The current angular offset of a following spindle in relation to the leading spindle can be read
using the following system variable:
●
●
Note
When the controller has been disabled and subsequently re-enabled during active
coupling and follow-up mode, the position offset when the controller is re-enabled is
different to the original programmed value. In this case, the new position offset can be
read and, if necessary, corrected in the part program.
544
(angular offset on the setpoint side)
$AA_COUP_OFFS[<FS>]
(angular offset on the actual value side)
$VA_COUP_OFFS[<FS>]
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
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