Siemens sinumerik 840D sl Function Manual page 230

Brief description
1.4 Electronic gearbox (EG)
1.4 Electronic gearbox (EG)
1.4.1 Function
General
The "electronic gear" function makes it possible to control the movement of a following axis,
depending on up to five master axes. The relationship between each leading axis and the
following axis is defined by the coupling factor. Following axis motion components derived
from the individual leading axis motion components have an additive effect.
The coupling can be based on:
• Actual value of the leading axis
• Setpoint of the leading axis
The following functions of a gear grouping can be programmed using part program
instructions:
• Defining
• Switch on
• Switch off
• Delete
Curve tables
Non-linear relationships between lead and following axes can also be implemented using
curve tables.
Cascading
Electronic gearboxes can be cascaded, i.e. the following axis of an electronic gearbox can
be the leading axis for a subsequent electronic gearbox.
Synchronous position
An additional function for synchronizing the following axis allows a synchronous position to
be selected:
• Approach next division (tooth gap) time-optimized
• Approach next division (tooth gap) path-optimized
• Approach in positive direction of axis rotation, absolute
• Approach in negative direction of axis rotation, absolute
• Traverse time-optimized with respect to programmed synchronized position
• Traverse path-optimized with respect to programmed synchronized position
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Special functions: Axis Couplings and ESR (M3)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0