Electronic Gear (Eg) - Siemens SINUMERIK 840D sl Programming Manual

Create master value
As an option, master values can be generated with other self-programmed methods. The
master values generated in this way are written to and read from variables
- $AA_LEAD_SP
- $AA_LEAD_SV
Before you use these variables, the setting data $SA_LEAD_TYPE = 2 must be set.
Status of coupling
You can query the status of the coupling in the NC program with the following system
variable:
$AA_COUP_ACT[[axis]]
0: No coupling active
16: Master value coupling active
Status management for synchronized actions
Switching and coupling events are managed via real-time variables:
$AC_MARKER[i] = n
managed with:
i flag number
n status value
11.4

Electronic gear (EG)

Function
The "Electronic gear" function allows you to control the movement of a following axis
according to linear traversing block as a function of up to five leading axes. The relationship
between each leading axis and the following axis is defined by the coupling factor.
The following axis motion part is calculated by an addition of the individual leading axis
motion parts multiplied by their respective coupling factors. When an EG axis grouping is
activated, it is possible to synchronize the following axes in relation to a defined position. A
gear group can be:
● Defined
● Activated
● Deactivated
● Deleted
Job Planning
Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
11.4 Electronic gear (EG)
Master value position
Master value velocity
Axis couplings
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