Siemens SINUMERIK 828D Function Manual page 1305

Dataset for ...
Axis mode
gear stage 1
gear stage 2
gear stage 3
gear stage 4
gear stage 5
Spindle in axis mode
If the spindle is in axis mode, the parameter set index "0" is selected in the servo (note
MD35590 $MA_PARAMSET_CHANGE_ENABLE!).
The gear stage change behavior depends on the setting in the machine data:
MD35014 $MA_GEAR_STEP_USED_IN_AXISMODE (gear stage for axis mode in M70)
If there is no gear stage configured for axis mode (MD35014 = 0), no implicit gear stage change takes place in
M70 (default setting!). The last gear stage is saved internally and is reactivated with the associated parameter set
during the next spindle programming.
If, however, a gear stage is configured for axis mode (MD35014 = 1 ... 5), a gear stage change to gears 1 ... 5
takes place during the execution of M70. When changing from axis mode to spindle mode, the gear stage loaded
with M70 remains activated. The gear stage which is activated in spindle mode prior to M70 is not automatically
loaded again.
See also "Configurable gear step in M70 [Page 1320]".
Load gearbox transmission ratio
It is possible to configure positive or negative load gearbox factors for each gear stage and in axis mode.
The setting is undertaken separately for numerator and denominator via the machine data:
MD31050 $MA_DRIVE_AX_RATIO_DENOM[n] (load gearbox denominator)
MD31060 $MA_DRIVE_AX_RATIO_DENOM[n] (load gearbox numerator)
The setting range is the same size for positive and negative load gearbox factors.
It is not possible to enter the value "0".
Note
If an indirect encoder is configured, and the load gearbox transmission ratio changes, then
the reference is lost and the NC/PLC interface signal:
DB31, ... DBX60.4/60.5 (referenced / synchronized 1 or 2)
is reset for the relevant measuring system.
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
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
S1: Spindles
16.4 Configurable gear adaptation
1305