Siemens SINUMERIK 840D Function Manual page 790

S1: Spindles
18.4 Configurable gear adaptations
MD35590 $MA_PARAMSET_CHANGE_ENABLE (parameter set change possible)
Value
0
1
2
Spindle mode
MD35590 $MA_PARAMSET_CHANGE_ENABLE = 0 or 1
The parameter set is selected according to the gear stage + 1.
The active gear stage is located in:
DB31, ... DBX16.0-16.2 (actual gear stage A to C)
The active parameter set is output in:
DB31, ... DBX69.0-69.2 (controller parameter set A to C)
One set of parameters, with the following assignment, is provided by the NC for each of the five
gear stages:
Data set for ...
Axis mode
Gear stage 1
Gear stage 2
Gear stage 3
Gear stage 4
Gear stage 5
790
Meaning
In-system parameter set selection
The parameter sets of the servo are assigned permanently.
The following applies:
● For axes and spindles in the axis mode, the first parameter set is active in principle.
Exception:
For G33, G34, G35, G331 and G332, for the axes involved, the parameter set with the
following number is activated:
Master spindle gear stage + 1 (corresponds to parameter set No. 2 ... 6)
● For spindles in the spindle mode, the parameter set is set matching the gear stage.
Besides the in-system parameter set selection, there is also the option of an "external" pa‐
rameter set selection.
● By the PLC (DB31, ... DBX 9.0 - 9.2)
● Via programming of SCPARA in the part program or in synchronized actions
However, the in-system parameter set selection has priority.
Note: Value 1 is relevant only to axes.
The servo parameter set is specified exclusively by the PLC (DB31, ... DBX 9.0 - 9.2) or through
the programming of SCPARA in the part program or in synchronized actions (for axes and
spindles).
The 1st parameter set is selected after POWER ON.
NC/PLC interface
DBX 69.2 / 69.1 / 69.0
Last active gear stage
001
010
011
100
101
110
111
Parameter set Parameter set
Number Index [n]
1 0
2 1
3 2
4 3
5 4
6 5
Function Manual, 06/2019, A5E47437747B AA
Axes and spindles