Behavior During Power On - Siemens SINUMERIK 840D sl Function Manual

(...)
Figure 8-12
8.5.10

Behavior during POWER ON, ...

Power on
No coupling is active at power ON. Coupling modules are not available.
RESET
The behavior on RESET can be set separately for each coupling module (see CPMRESET).
The coupling can be activated, deactivated or the current state can be retained.
Special functions
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Position indication for X, A
Example: Modulo reduced rotary axis to linear axis
M3: Coupled axes
8.5 Generic coupling
427