Adapting The Motor/Load Ratios - Siemens SINUMERIK 828D Function Manual

7.4.3

Adapting the motor/load ratios

Gear types
The following gear types are available for adapting the mechanical ratios:
Gear type
Motor/load gear
Measuring gear encoder
Load intermediate gear unit
Local position of gear unit/encoder
Figure 7-2 Gear unit types and encoder locations
Motor/load gear
The motor/load gear supported by SINUMERIK is configured via the following machine data:
MD31060 $MA_DRIVE_AX_RATIO_NUMERA (Numerator load gearbox)
MD31050 $MA_DRIVE_AX_RATIO_DENOM (Denominator load gearbox)
The transmission ratio is obtained from the numerator/denominator ratio of both machine data. The associated
parameter sets are used automatically as default by the control to synchronize the position controller with the
relevant transmission ratios.
Since a gear stage change is not always carried out automatically, and there are also several ways to request a
gear stage change, the position controller is not always incorporated via parameter sets.
Note
For further information about the parameter sets for gear stage change, see:
References:
/FB1/ Function Manual Basic Functions; Spindles (S1)
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
G2: Velocities, setpoint / actual value systems, closed-loop control
Activation Adaptation
Parameter set Fixed configuration
Power ON Sensor-dependent
NewConfig Load-dependent
7.4 Setpoint/actual-value system
Installation location
Gear unit
Sensor-side
Tool-side
=
=
359