Parameter Set Selection During Gear Step Change - Siemens SINUMERIK 840D Function Manual

$AC_SGEAR[<n>]
Note
For a block search, the actual gear stage ($VC_SGEAR[<n>]) can differ from the setpoint gear
stage ($AC_SGEAR[<n>]) as, during the block search, no gear stage change takes place.
Therefore, using $VC_SGEAR[<n>] and $AC_SGEAR[<n>], it can be interrogated whether a
gear stage change should be made after a block search.
● Without preprocessing stop in the part program via system variables:
$P_SGEAR[<n>]
$P_SEARCH_SGEAR[<n>]
18.4.4

Parameter set selection during gear step change

Servo parameter sets
The servo parameter sets 1 to 6 adapt the position controller to the changed properties of the
machine during a gear change of the spindle.
Parameter set selection during gear stage change
The gear stage parameter set (interpolation parameters) and, depending on the setting in the
following machine data, the servo parameter set are also modified during gear stage change.
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
Active spindle gear stage
$AC_SGEAR reads the setpoint gear stage in the main run.
Value range: 1 ... 5
The data set for the spindle is activated corresponding to this
gear stage.
Setpoint gear stage
$P_SGEAR reads the gear stage programmed in the part pro‐
gram (M41 ... M45), for M40 selected, or for M70, the configured
gear stage.
Block search: Gear-specific M function
$P_SEARCH_SGEAR contains the last programmed gear
stage M function collected with the block search.
S1: Spindles
18.4 Configurable gear adaptations
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