Siemens sinumerik 840D sl Function Manual page 282

Detailed description
2.4 Electronic gearbox (EG)
Number of EG axis groups
Several EG axis groups can be defined at the same time. The maximum possible number of
EG axis groupings is set in the following machine data:
MD11660 $MN_NUM_EG
The maximum permissible number of EG axis groups is 31.
Note
The option must be enabled.
EG cascading
The following axis of an EG can be the leading axis of another EG. For a sample
configuration file, see Chapter "Examples".
Figure 2-7
62
Block diagram of an electronic gearbox
Special functions: Axis Couplings and ESR (M3)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0